TRICKLE-L digests for NOVENBER 1995

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From ab4el@ab4el.com Sat May 18 00:00 EDT 1996
From: Stephen Modena <modena@SunSITE.unc.edu>
Message-Id: <96051801.modena@sunsite.unc.edu>
Subject: TRICKLE-L LOG9511
Date: Sat, 18 May 1996 00:01:00 -0400 (EDT)

This is the compendium of TRICKLE-L digests for November 1995.

It was prepared from the daily digest mailings. Some digests
may be missing, because occasional mailings are lost en route.



From root@crcnis1.unl.edu Wed Nov 1 14:17 EST 1995
Date: Wed, 1 Nov 1995 08:07:30 -0600
Message-Id: .<.199511011407.AA14238@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 335

Contents:
Re: IRRISOFT and other ("Jos Balendonck, IMAG-DLO,PO-Box 43,NL6700AA,Wageningen")
Re: TRICKLE-L digest 334 (rmead@asrr.arsusda.gov)
Re: TRICKLE-L digest 334 ("Jos Balendonck, IMAG-DLO,PO-Box 43,NL6700AA,Wageningen")

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Date: Tue, 31 Oct 1995 16:32:43 +0000 (GMT) From: "Jos Balendonck, IMAG-DLO,PO-Box 43,NL6700AA,Wageningen" Subject: Re: IRRISOFT and other Dear Thomas Stein My address is: j.balendonck@imag.agro.nl you could try also: j.balendonck@imag.dlo.nl Is it possible to reply within your software ? I have already sent you the information by mail. Regards Jos <------------------------------>
Date: Tue, 31 Oct 1995 11:42:36 -0500 (EST) From: rmead@asrr.arsusda.gov Subject: Re: TRICKLE-L digest 334 Recently Jos Balendonck from the Netherlands stated: >we have a lot of information on these sensors, publications on f.i. how this technology compares to TDR-techniques and how to calibrate them. Furthermore we have information on the chip (ASIC) we have designed to construct this sensor. (Publication on IEEE congres and a datasheet). This ASIC is also available on the market for industries to design there own sensor with it.< >Perhaps it is interesting for trickle-l to have abstracts or publications available.< He then asked for the address of Trickle-l/Water Management Research Lab.. Our snail mail address is: WMRL 2021 South Peach Fresno, CA. USA 93727 I would like to look at your information. We have been working with various types of soil moisture instrumentation over the years and being the technophile-geek that I am, would love to see new things coming out. If any one else on the Trickle-L list has new things coming onto the market and would like to discuss them, you could send me information about the product and I will instigate conversation about it if deemed interesting. Richard Mead Trickle-L manager <------------------------------>
Date: Wed, 01 Nov 1995 08:01:54 +0000 (GMT) From: "Jos Balendonck, IMAG-DLO,PO-Box 43,NL6700AA,Wageningen" Subject: Re: TRICKLE-L digest 334 Dear Richard, Since I have your address, I will mail you all the information we have. Please indicate me afterward what kind of information you want in Electronic form. Thanks for your answer. Jos Balendonck <------------------------------>
End of Digest ************************


From ab4el@ab4el.com Thu Nov 2 00:01 EST 1995
Date: Thu, 2 Nov 1995 00:01:00 -0600
Message-Id: .<.199511020001.ab4el@ab4el.com.>.
From: ab4el@ab4el.com
Subject: TRICKLE-L digest 336 was NOT received

TRICKLE-L digest 336 was NOT received

<---------------------------------------------------------------------->



From root@crcnis1.unl.edu Fri Nov 3 21:35 EST 1995
Date: Fri, 3 Nov 1995 08:51:04 -0600
Message-Id: .<.199511031451.AA03578@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 337

Contents:
 (sinfield@deakin.edu.au (Dale Sinfield))
large scale dripper applications (sinfield@deakin.edu.au (Dale Sinfield))
Re: large scale dripper applications (FLamm@oznet.ksu.edu (Freddie Lamm))
Re: large scale dripper applications (FLamm@oznet.ksu.edu (Freddie Lamm))
Re: large scale dripper applications (sinfield@deakin.edu.au (Dale Sinfield))
Re: large scale dripper applications (geoflowr@halcyon.com (Rodney Ruskin))
Re: large scale dripper applications (ScottGood@aol.com)
Re: large scale dripper applications (sinfield@deakin.edu.au (Dale Sinfield))
New subscriber (MEAD2513@aol.com)
RE: large scale dripper applications (Goldberg .<.goldberg@eden.com.>.)

<---------------------------------------------------------------------->

Date: Fri, 3 Nov 1995 08:34:12 +1100 (EST) From: sinfield@deakin.edu.au (Dale Sinfield) Subject: recipients trickle-l information trickle-l statistics trickle-l Dale Sinfield "A little Tassie export" <------------------------------>
Date: Fri, 3 Nov 1995 08:59:41 +1100 (EST) From: sinfield@deakin.edu.au (Dale Sinfield) Subject: large scale dripper applications SUB-SURFACE DRIP IRRIGATION - OPERATIONAL AND DESIGN EXPERIENCE I am enquiring about any experiences out there anyone might have with sub-surface dripper systems, for the application of treated effluent in particular, or any other source in general. I am currently designing the effluent re-use component of our cities new Sewage Treatment Plant. As part of that project approximately 12 ML/day (12,000m=B3) of reclaimed water (tertiary treated effluent) is to be used on mostly irrigated woodlots and possibly an agricultural venture such as a vineyard. However approximately 500 KL/day (500m=B3) is being considered for use on= the cities parks and recreational playing fields that are within an economic distance of the treatment plant. These parks and gardens are presently irrigated with a combination of potable water, and water from the nearby Murray River. The method of application is by pop-up gear driven sprinklers. It is relatively straightforward (although expensive) engineering exercise to provide the reclaimed water to these parks and areas by pumping from our maturation lagoon up to a 1 ML Reservoir and then gravity feeding the reclaimed water into the existing sprinkler pipework some 3 km away. Converting the system such that the feed is reclaimed water is not a big issue, what is is the method of application. It is possible to utilise the existing sprinkler system and pipework but it places limitations on us in the areas of gravity feeder main, number of stages, times of the day over which irrigation can take place and EPA and Health Department concerns and regulations. Not to mention public opinion, which is yet to be accurately gauged but could be the overriding constraint. The alternative is the use of the sub-surface dripper systems such as products like Wasteflow and Rootguard offered by Geoflow inc. Theoretically these products offer advantages in versatility in staging, gravity main minimisation, application control etc for my project. My problem lies in that whilst it does not seem to be technically a difficult matter to retrofit the existing sprinkler system over to sub-surface drippers or indeed install a new system, there is little practical design or in-situ experience of these products over large areas eg > 3 ha (7 acres) and for a reasonable length of time eg > 2 years. Consequently it is difficult to gauge the effectiveness, suitability and performance of these products. Has anyone had some experiences or know some contacts out there that might be enlightening ? Our soils are variable in all our parks from sandy loam through to clay loam. We expect emitter spacings of 60cm (2 ft) and similar spacings for laterals. I would be grateful if anyone could forward any comments they might have on experiences with these products and traps/pitfalls they have encountered in the design and or operation of these systems. Any contact names, numbers, e-mail addresses would be appreciated as well as any alternative products to the Geoflow products for evaluation. Dale Sinfield sinfield@deakin.edu.au Dale Sinfield=20 "A little Tassie export" <------------------------------>
Date: 02 Nov 95 17:56:14 CST From: FLamm@oznet.ksu.edu (Freddie Lamm) Subject: Re: large scale dripper applications I'm not sure what you specific question is. Are you primarily interested in longterm SDI operations, of which there are several in US? Or are you primarily interested in design procedures for SDI? Or are you primarily interested in operation specifically with effluent?? Freddie * ------------------------------------------------------------------- Freddie Lamm * Research Agricultural Engineer *** o KSU Northwest Research-Extension Center ***** /|\ 105 Experiment Farm Road *******\\ Colby, Kansas 67701-1697 ********* Ph. 913-462-6281 *********** FAX 913-462-2315 ************* Email:flamm@oznet.ksu.edu It's all downhill from here. ------ THERE'S NO DOMAIN LIKE OZ, THERE'S NO DOMAIN LIKE OZ. ------ <------------------------------>
Date: 02 Nov 95 17:51:31 CST From: FLamm@oznet.ksu.edu (Freddie Lamm) Subject: Re: large scale dripper applications ------------------------------------------------------------------- Freddie Lamm * Research Agricultural Engineer *** o KSU Northwest Research-Extension Center ***** /|\ 105 Experiment Farm Road *******\\ Colby, Kansas 67701-1697 ********* Ph. 913-462-6281 *********** FAX 913-462-2315 ************* Email:flamm@oznet.ksu.edu It's all downhill from here. ------ THERE'S NO DOMAIN LIKE OZ, THERE'S NO DOMAIN LIKE OZ. ------ <------------------------------>
Date: Fri, 3 Nov 1995 14:25:52 +1100 (EST) From: sinfield@deakin.edu.au (Dale Sinfield) Subject: Re: large scale dripper applications >I'm not sure what you specific question is. Are you primarily >interested in longterm SDI operations, of which there are several in >US? > >Or are you primarily interested in design procedures for SDI? > >Or are you primarily interested in operation specifically with effluent?? > > >Freddie >* >------------------------------------------------------------------- >Freddie Lamm * >Research Agricultural Engineer *** o >KSU Northwest Research-Extension Center ***** /|\ >105 Experiment Farm Road *******\\ >Colby, Kansas 67701-1697 ********* >Ph. 913-462-6281 *********** >FAX 913-462-2315 ************* >Email:flamm@oznet.ksu.edu It's all downhill from here. > >------ THERE'S NO DOMAIN LIKE OZ, THERE'S NO DOMAIN LIKE OZ. ------ > Freddie, My queries relate to all of the above really. Have long term SDI operations been a success, in my instance for parklands, turf and sporting grounds in particular ? Have any SDI operations that have or are using treated effluent been successful or is BOD/SS problems, and therefore algae growth, a real concern for such irrigation practices if not dealt with satisfactorily. What have been the operational experiences/problems associated with SDI. Are there any real traps in the design of these systems which are not readily apparent. Are there any other products you know of other than the Geoflow "Wasteflow" and has the Geoflow products performed okay ? Regards Dale > Dale Sinfield "A little Tassie export" <------------------------------>
Date: Thu, 2 Nov 1995 20:10:30 -0800 From: geoflowr@halcyon.com (Rodney Ruskin) Subject: Re: large scale dripper applications At 4:15 PM 11/2/95 -0600, Dale Sinfield wrote: >SUB-SURFACE DRIP IRRIGATION - OPERATIONAL AND DESIGN EXPERIENCE > > >My problem lies in that whilst it does not seem to be technically a >difficult matter to retrofit the existing sprinkler system over to >sub-surface drippers or indeed install a new system, there is little >practical design or in-situ experience of these products over large areas e= g >> 3 ha (7 acres) and for a reasonable length of time eg > 2 years. >Consequently it is difficult to gauge the effectiveness, suitability and >performance of these products. > >Has anyone had some experiences or know some contacts out there that might >be enlightening ? > Because the above inquiry implies that Geoflow does not have extensive experience with wastewater and SDI to set the public record right I would like to bring the following list to the attention of any interested party. Large Geoflow SDI WASTEFLOW=81 systems include: =46ort Myers International Airport Consulting engineers: Mr. Jack Wilson, Ed Harper Burns & McDonnell P. O. Box 419173 Kansas City MO 64141-6173 816 333-4375 Fax: 822-3415 =46ort Myers Airport Lee Count Port Authority Marvin M. Buford, Grounds Supervisor William Doc Van Rite, Supt. of Maintenance Southwest Florida International Airport 16000 Chamberlin Pkwy, Suite 8671 =46ort Myers, FL 33913 Marvin: 813 768-4413 Fax: 4489 Doc: 813 768-4713 Fax: 4489 Approx. 1,000,000 sq. ft. disposal field in grass on wetlands to dispose of approximately 250,000 gpd. Federal contract approved by both Federal and =46lorida EPA, and Florida Health Authorities. City of Oakleigh (Melbourne, Australia) Consulting engineers: Woodward Clyde Peter Gearing, 22 Heather Street Parnell, Auckland New Zealand 011 64 9 3099477 Fax: 3099702 Approx. 250,000 sq. ft. disposal field in turf in school playing fields and park. Kukuiula Development Project, Kauai, Hawaii Designed and installed by: Irrigation Technology Corporation Mr. Elson C. Gushiken Mr. Mike Farrell P. O. Box 458 66-079 Kam Highway Haleiwa, Hawaii 96712 808 637-5078 Fax: 637-4779 1 million gallons per day under turf. Holoholokaibeach Park, Mauna Lani Resort, Island of Hawaii. Designed and installed by: Irrigation Technology Corporation Mr. Elson C. Gushiken Mr. Mike Farrell P. O. Box 458 66-079 Kam Highway Haleiwa, Hawaii 96712 808 637-5078 Fax: 637-4779 Approx. 3 acres of park land is irrigated with effluent with the high level of salinity of 900 mg/l. Brigham Young University, Hawaii Designed by CH2MHILL (with advice from ITC) Peter H. Rude, P.E. 2525 Airport Drive 96001-2443 P. O. Box 492478 Redding, CA 96049-2478 916 243 5886 Ext 3396 =46ax: -1654 Brigham Young University Brett Borup 368 CB Provo, UT 84601 Tel: 801 378 6311 Approximately 75 acres of landscape playing fields and turf. <------------------------------>
Date: Thu, 2 Nov 1995 23:30:58 -0500 From: ScottGood@aol.com Subject: Re: large scale dripper applications In a message dated 95-11-02 23:13:00 EST, you write: >Subj: Re: large scale dripper applications >Date: 95-11-02 23:13:00 EST >From: geoflowr@halcyon.com (Rodney Ruskin) >Because the above inquiry implies that Geoflow does not have extensive >experience with wastewater and SDI to set the public record right I would >like to bring the following list to the attention of any interested party. > > Rodney, I can not speak for others, but I think that the message was geared towards gaining more info... I know I would be knocking on every door around to double and redouble the research effort for ALL information just for peace of mind in such a LARGE project. Is there such a thing as too much data....????? As a local company puts it "An Educated Consumer IS OUR BEST CUSTOMER!!!" Me....SMG Scott Good <------------------------------>
Date: Fri, 3 Nov 1995 15:57:04 +1100 (EST) From: sinfield@deakin.edu.au (Dale Sinfield) Subject: Re: large scale dripper applications >At 4:15 PM 11/2/95 -0600, Dale Sinfield wrote: >>SUB-SURFACE DRIP IRRIGATION - OPERATIONAL AND DESIGN EXPERIENCE >> >> >>My problem lies in that whilst it does not seem to be technically a >>difficult matter to retrofit the existing sprinkler system over to >>sub-surface drippers or indeed install a new system, there is little >>practical design or in-situ experience of these products over large areas e= >g >>> 3 ha (7 acres) and for a reasonable length of time eg > 2 years. >>Consequently it is difficult to gauge the effectiveness, suitability and >>performance of these products. >> >>Has anyone had some experiences or know some contacts out there that might >>be enlightening ? >> >Because the above inquiry implies that Geoflow does not have extensive >experience with wastewater and SDI to set the public record right I would >like to bring the following list to the attention of any interested party. > >Large Geoflow SDI WASTEFLOW=81 systems include: > >=46ort Myers International Airport >Consulting engineers: >Mr. Jack Wilson, Ed Harper >Burns & McDonnell >P. O. Box 419173 >Kansas City MO 64141-6173 >816 333-4375 Fax: 822-3415 >=46ort Myers Airport >Lee Count Port Authority >Marvin M. Buford, Grounds Supervisor >William Doc Van Rite, Supt. of Maintenance >Southwest Florida International Airport >16000 Chamberlin Pkwy, Suite 8671 >=46ort Myers, FL 33913 >Marvin: 813 768-4413 Fax: 4489 >Doc: 813 768-4713 Fax: 4489 >Approx. 1,000,000 sq. ft. disposal field in grass on wetlands to dispose of >approximately 250,000 gpd. Federal contract approved by both Federal and >=46lorida EPA, and Florida Health Authorities. > > >City of Oakleigh (Melbourne, Australia) >Consulting engineers: >Woodward Clyde >Peter Gearing, >22 Heather Street >Parnell, Auckland >New Zealand >011 64 9 3099477 Fax: 3099702 >Approx. 250,000 sq. ft. disposal field in turf in school playing fields and >park. > >Kukuiula Development Project, Kauai, Hawaii >Designed and installed by: >Irrigation Technology Corporation >Mr. Elson C. Gushiken >Mr. Mike Farrell >P. O. Box 458 >66-079 Kam Highway >Haleiwa, Hawaii 96712 >808 637-5078 Fax: 637-4779 >1 million gallons per day under turf. > >Holoholokaibeach Park, Mauna Lani Resort, Island of Hawaii. >Designed and installed by: >Irrigation Technology Corporation >Mr. Elson C. Gushiken >Mr. Mike Farrell >P. O. Box 458 >66-079 Kam Highway >Haleiwa, Hawaii 96712 >808 637-5078 Fax: 637-4779 >Approx. 3 acres of park land is irrigated with effluent with the high level >of salinity of 900 mg/l. > >Brigham Young University, Hawaii >Designed by CH2MHILL (with advice from ITC) >Peter H. Rude, P.E. >2525 Airport Drive 96001-2443 >P. O. Box 492478 >Redding, CA 96049-2478 >916 243 5886 Ext 3396 >=46ax: -1654 >Brigham Young University >Brett Borup >368 CB >Provo, UT 84601 >Tel: 801 378 6311 >Approximately 75 acres of landscape playing fields and turf. > > > I did not mean to cast dispersions on Geoflow products in my enquiry, I was just asking for peoples opinions. I have faxed all the above contacts stated but am yet to get a reply. These contacts were provided by geoflow for me to check out which I was grateful for. A good engineer checks out all opinions on products, favourable and unfavourable as well as researching alternative products and suppliers, in a thorough design process. My original enquiries still stand Regards Dale Sinfield Dale Sinfield "A little Tassie export" <------------------------------>
Date: Fri, 3 Nov 1995 00:57:15 -0500 From: MEAD2513@aol.com Subject: New subscriber The following reply to the welcome survey/questions is from Mike Milligan, a new subscriber: >1) Briefly, what is your affiliation with trickle/drip irrigation? I use subsurface drip on about 25 acres of Monterey pine Xmas trees. >2) What crops or plants do you use drip irrigation on? The pine. >3) If using subsurface drip irrigation, what is the average depth of >placement of the drip lateral? Two to 3 inches deep about 10+ inches from the truck line. >4) What problems have you encountered with drip irrigation? Difficulties in scheduling. I use irrometers and water budgeting, but still am finding myself miffed at times. >5) Fertigation is a real advantage of drip irrigation. What form of N, P >and K have you been trying and to what success? Usually put on N, P and K by hand before rains quit, then N the rest of the season via injection. Pretty good results. >6) Have you experienced a reduction in fertilizer and/or water use? Less fertilizer, more water. The old handline and overhead guns used to limit our ability to put down as much and as frequently as the water budget method indicated. Now it is easy. >7) Do you have water quality problems? If so, how do you tackle the >situation? We have good water, thank God. >8) How frequent do you irrigate? Many times a day or just one long >session per day or several days? Depends on the soil type. In the heat of summer on coarse sand 3 or 4 times weekly. In our heavier loams sometimes once or twice weekly in the heat of summer. >9) Do you have rodent damage? If so, how do you control the problem? Worst is squirrels, followed by rabbits, both of which we control with a good anti-coagulant bait. Gophers, if allowed to go unchecked can raise hell, but we stay up with them using Macabee traps. >10) Are you pleased with the uniformity of your system or systems? Were >they designed correctly? I'm embarassed to say I've never measured flow around the field. I know I should and I will. But looking up the row I can see a very uniform wetted band from our shallowly buried lines. >11) How did you find out about our mailing list? Someone mentioned it on the newsgroup, Sci.agriculture. I look forward to this listserver even though I am a rank rooky and know nothing about using one. I guess I'll learn. Thanks, Mike <------------------------------>
Date: Fri, 3 Nov 1995 05:04:59 -0600 From: Goldberg .<.goldberg@eden.com.>. Subject: RE: large scale dripper applications ------ =_NextPart_000_01BAA9AA.3B56F900 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable ---------- From: Dale Sinfield[SMTP:sinfield@deakin.edu.au] Sent: Thursday, November 02, 1995 4:26 PM To: Multiple recipients of list Subject: large scale dripper applications SUB-SURFACE DRIP IRRIGATION - OPERATIONAL AND DESIGN EXPERIENCE I am enquiring about any experiences out there anyone might have with sub-surface dripper systems, for the application of treated effluent in particular, or any other source in general. I am currently designing the effluent re-use component of our cities new Sewage Treatment Plant. As part of that project approximately 12 ML/day (12,000m=3DB3) of reclaimed water (tertiary treated effluent) is to be = used on mostly irrigated woodlots and possibly an agricultural venture such as a vineyard. However approximately 500 KL/day (500m=3DB3) is being considered for use = on=3D the cities parks and recreational playing fields that are within an economic distance of the treatment plant. These parks and gardens are presently irrigated with a combination of potable water, and water from the nearby Murray River. The method of application is by pop-up gear driven = sprinklers. It is relatively straightforward (although expensive) engineering = exercise to provide the reclaimed water to these parks and areas by pumping from = our maturation lagoon up to a 1 ML Reservoir and then gravity feeding the reclaimed water into the existing sprinkler pipework some 3 km away. Converting the system such that the feed is reclaimed water is not a big issue, what is is the method of application. It is possible to utilise = the existing sprinkler system and pipework but it places limitations on us = in the areas of gravity feeder main, number of stages, times of the day = over which irrigation can take place and EPA and Health Department concerns = and regulations. Not to mention public opinion, which is yet to be = accurately gauged but could be the overriding constraint. The alternative is the use of the sub-surface dripper systems such as products like Wasteflow and Rootguard offered by Geoflow inc. = Theoretically these products offer advantages in versatility in staging, gravity main minimisation, application control etc for my project. My problem lies in that whilst it does not seem to be technically a difficult matter to retrofit the existing sprinkler system over to sub-surface drippers or indeed install a new system, there is little practical design or in-situ experience of these products over large = areas eg > 3 ha (7 acres) and for a reasonable length of time eg > 2 years. Consequently it is difficult to gauge the effectiveness, suitability and performance of these products. Has anyone had some experiences or know some contacts out there that = might be enlightening ? Our soils are variable in all our parks from sandy loam through to clay loam. We expect emitter spacings of 60cm (2 ft) and similar spacings for laterals. I would be grateful if anyone could forward any comments they might have = on experiences with these products and traps/pitfalls they have encountered = in the design and or operation of these systems. Any contact names, = numbers, e-mail addresses would be appreciated as well as any alternative = products to the Geoflow products for evaluation. Dale Sinfield sinfield@deakin.edu.au Dale Sinfield=3D20 "A little Tassie export" Mr. Sinfield: My company is in the business of designing and providing equipment of = drip irrigation systems for wastewater reuse. Please call me at (512) = 329-0066, since a full discussion of the possibilities would be too = limited by e-mail. 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End of Digest ************************


From root@crcnis1.unl.edu Sat Nov 4 23:21 EST 1995
Date: Sat, 4 Nov 1995 08:51:36 -0600
Message-Id: .<.199511041451.AA25107@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 338

Contents:
Intro (Patrick.Joyce@property.camcnty.gov.uk)
Re: large scale dripper applications (Merriott@aol.com)
Hose end monitoring (milligan@smartdocs.com (Milligan/Roatcap))
Re: large scale dripper applications (geoflowr@halcyon.com (Rodney Ruskin))

<---------------------------------------------------------------------->

Date: Fri, 3 Nov 1995 17:28:28 +0000 From: Patrick.Joyce@property.camcnty.gov.uk Subject: Intro I've lurked for a while so I suppose it's now time to say hello! 1) Briefly, what is your affiliation with trickle/drip irrigation? I'm a broadly-based agriculturalist and engineer with specialisms in land drainage and irrigation. 2) What crops or plants do you use drip irrigation on? Strawberries-beneath polythene mulch Raspberries Runner beans 3) If using subsurface drip irrigation, what is the average depth of placement of the drip lateral? c.30mm. 4) What problems have you encountered with drip irrigation? Poor EU Lower than expected application rates (from manufacturers info) Blocked emitters Rodent damage 5) Fertigation is a real advantage of drip irrigation. What form of N, P and K have you been trying and to what success? Tailor made multi part acid chemigation, with good results on soils notoriously deficient in many nutrients. 6) Have you experienced a reduction in fertilizer and/or water use? No. Other forms of irrigation are largely unfeasible due to soiltype and method of growing. 7) Do you have water quality problems? If so, how do you tackle the situation? Yes, surface and groundwater is saline 2.5-3dS/m. Thus potable mains supply water is used extensively.(expensively!) 8) How frequent do you irrigate? Many times a day or just one long session per day or several days? On an ad hoc basis dependent on rainfall but frequently enough to deliver the required fertiliser 9) Do you have rodent damage? If so, how do you control the problem? Yes, Mice. We suffer it, ideas? 10) Are you pleased with the uniformity of your system or systems? Were they designed correctly? No, poor EU. Deteriorates markedly with age. Designed in accordance with manufacturers recommendations. 11) How did you find out about our mailing list? New-List Patrick.Joyce@property.camcnty.gov.uk <------------------------------>
Date: Fri, 3 Nov 1995 17:36:14 -0500 From: Merriott@aol.com Subject: Re: large scale dripper applications I have had some experience with treated wastewater irrigation, although not with subsurface drippers. The biggest problem I have seen is that the evapotranspiration requirements of the crop irrigated do not always coincide with the amount of effluent generated, and the wastewater has to go somewhere. Consequently, sometimes people will overirrigate, overload the system, and pollute the groundwater. For this reason, the systems using the effluent should be sufficiently large to handle all the effluent generated and be able to use other water sources when sufficient effluent is not available. Treated wastewater is used extensively in Florida for irrigating turf areas and also in some citrus and other crops. Many citrus growers have been reluctant to use it because of the fear of consumer backlash. Everywhere it is used in turf, you see little signs that say "reclaimed water in use". There does not seem to be the same stigma in turf, at least from what I can tell. Using it on non food crops seems to less controversial. Everyone seems to think of it as recycling. It is less pleasant to think of drinking a glass of orange juice that was grown on treated wastewater. However most of the growers seem to have no problem with spreading sludge on their groves! Randall <------------------------------>
Date: Fri, 3 Nov 1995 19:21:56 -0800 From: milligan@smartdocs.com (Milligan/Roatcap) Subject: Hose end monitoring A story, then a question. The story: A fellow I heard talking once said he used a relatively thin-walled T-Tape-like product on the ends of his subsurface lines. He used a foot or so length that rose from underground at about a 45 degree angle so when the line was adequately pressurized these otherwise limp tails would stand up. He could thus drive his pickup around the ends of the field to see if any of his subsurface lines lacked pressure (either from a break or a constriction). I am setting up to make this modification this winter. Right now I spend (or should spend) lots of time walking my lines, listening and looking for breaks or pinch offs from parallel roots growing above and below the line that act like a hemostat. In the heat of summer I might (or should) walk those lines three or four times a week. That's lots of miles! And for a pretty so-so job of it. This fella said he also mounted a male barbed insert to male garden hose fitting on the end of the flexible tail so he could put on a garden hose end cap for flushing the lines. In addition, he mounted "tire pressure" type valves on those caps so he could walk the lines periodically to check each line for exact pressure and make sure he didn't have a lesser problem (partial pinch or break) that the flexible hose ends might not show. Here's my question: I have yet to hook up the flexible end, but I tried a few of the barb to hose end adapters. They were expensive. I can't seem to get a good seal between the T-Tape and the barb although I'm using good stainless steel wire ties. I tried wrapping each barb with a some electrical tape to see if it would provide a gasketing effect and it didn't. So far the best, fastest, cheapest flush ends I've found is the same poly tubing I use to supply the T-Tape from the submain. (I think it's called 520x600 or something like that) A single fold, loosely clipped with a ring cut from 1" PVC pipe seals well and slides off easily to flush the lines. What I'm wondering, is there a quick and inexpensive means of monitoring pressure from that doubled piece of poly hose? Without opening it? Thanks for any advice you can give, Mike <------------------------------>
Date: Fri, 3 Nov 1995 20:36:00 -0800 From: geoflowr@halcyon.com (Rodney Ruskin) Subject: Re: large scale dripper applications At 10:23 PM 11/2/95 -0600, ScottGood@aol.com wrote: >In a message dated 95-11-02 23:13:00 EST, you write: > >>Subj: Re: large scale dripper applications >>Date: 95-11-02 23:13:00 EST >>From: geoflowr@halcyon.com (Rodney Ruskin) > >>Because the above inquiry implies that Geoflow does not have extensive >>experience with wastewater and SDI to set the public record right I would >>like to bring the following list to the attention of any interested party. >> >> >Rodney, > >I can not speak for others, but I think that the message was geared towards >gaining more info... I know I would be knocking on every door around to >double and redouble the research effort for ALL information just for peace of >mind in such a LARGE project. > >Is there such a thing as too much data....????? > >As a local company puts it "An Educated Consumer IS OUR BEST CUSTOMER!!!" > >Me....SMG > >Scott Good AGREED - 100% Thank you, Rodney <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Sun Nov 5 15:02 EST 1995
Date: Sun, 5 Nov 1995 08:54:14 -0600
Message-Id: .<.199511051454.AA06377@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 339

Contents:
Re: large scale dripper applications (geoflowr@halcyon.com (Rodney Ruskin))
Re: large scale dripper applications (pdspyke@gate.net)
Re: Hose end monitoring (al shields .<.shieldsa@andrews.edu.>.)

<---------------------------------------------------------------------->

Date: Sat, 4 Nov 1995 11:41:36 -0800 From: geoflowr@halcyon.com (Rodney Ruskin) Subject: Re: large scale dripper applications At 4:29 PM 11/3/95 -0600, Merriott@aol.com wrote: >I have had some experience with treated wastewater irrigation, although not >with subsurface drippers. The biggest problem I have seen is that the >evapotranspiration requirements of the crop irrigated do not always coincide >with the amount of effluent generated, and the wastewater has to go >somewhere. Consequently, sometimes people will overirrigate, overload the >system, and pollute the groundwater. For this reason, the systems using the >effluent should be sufficiently large to handle all the effluent generated >and be able to use other water sources when sufficient effluent is not >available. > >Treated wastewater is used extensively in Florida for irrigating turf areas >and also in some citrus and other crops. Many citrus growers have been >reluctant to use it because of the fear of consumer backlash. Everywhere it >is used in turf, you see little signs that say "reclaimed water in use". > There does not seem to be the same stigma in turf, at least from what I can >tell. Using it on non food crops seems to less controversial. Everyone >seems to think of it as recycling. It is less pleasant to think of drinking >a glass of orange juice that was grown on treated wastewater. However most >of the growers seem to have no problem with spreading sludge on their groves! > > >Randall You have indeed raised a major and not insignificant technical issue with respect to wastewater re-use. Wastewater disposal and wastewater reuse are different requirements and often in conflict. Wastewater is generated every day and with a disposal problem it either has to be used every day or stored. With wastewater reuse the supplier often has the alternative to discharge the wastewater in the conventional manner, and the consumer only has to take as much as he needs. Often these needs complement one another but equally often there is a conflict. Wastewater varies enormously in quality. In very loose language one can describe effluent as follows: primarily treated effluent as comes directly from a septic tank, or secondary treated which is usually some aerobic treatment after settling, or filtered and/or disinfected secondary treated effluent, or tertiary treated effluent, or tertiary treated effluent with de-nitrification. According to the paper THE PRODUCTION OF CITRUS WITH RECLAIMED WATER by P. Cross, J.L. Jackson and J. Chicone in the proceedings of Urban and Agricultural Water Reuse W.E.F, June 1992, Orlando, Fl., the water used in the citrus groves supplied from the Orlando area could be described as filtered, chlorinated secondary treated effluent. This is based upon the following data: maximum average BOD<30mg/l, TSS<5mg/l, nitrogen<30mg/l and residual chlorine = 1mg/l. This paper also states that there are both Alternative Application Sites owned and operated by the grower and Rapid Infiltration Basins built on City of Orlando and Orange County land and controlled and operated by the system operator. These take the surplus water throughout the year. These sites are approved and monitored by the Florida Dept. of Env. Reg. The soil will function to absorb pathogens in the effluent and the plants will absorb the nitrates. I wish that I could claim to be expert in this field. I know only enough to know that each application has to be considered according to the specific circumstances. Soil scientists, agronomists and water treatment engineers have to pool their skills to find the best compromise. To assist our clients in this endeavor (and to educate ourselves), we contracted with Dr. Carlile P.E. and Dr. Phene, two of the leading soil scientists in the U.S.A. to write papers for us. The first paper aimed primarily at the disposal issue is by Carlile and Sanjines SUBSURFACE TRICKLE IRRIGATION SYSTEMS FOR ON-SITE WASTEWATER DISPOSAL AND REUSE. This paper is available from the Small Flows Clearing House. The second paper aimed primarily at reuse is by Phene and Ruskin POTENTIAL OF SUBSURFACE DRIP IRRIGATION FOR MANAGEMENT OF NITRATE IN WASTEWATER, and was presented at the Fifth Int. Microirrigation Congress, Orlando, Fl., April 1995. Both of these papers contain graphs and drawings which will not transfer to Trickle-l. If anyone wants copies please send an e-mail message to me specifying which papers you require and with your snail-mail address. Rodney. <------------------------------>
Date: Sat, 4 Nov 1995 15:37:36 -0500 From: pdspyke@gate.net Subject: Re: large scale dripper applications Randall, How's it going? Any luck in the job department? I think I'm going to run an ad for computers in the Jan issue of the Citrus Industry Magazine. Would you be interested in setting them up and installing them? If so, let's talk. It would strictly be for growers. How's Stetson coming? See ya. Pete <------------------------------>
Date: Sun, 5 Nov 1995 01:42:28 -0500 (EST) From: al shields .<.shieldsa@andrews.edu.>. Subject: Re: Hose end monitoring Find a catalog of Hardie Irrigation, or Ag Products for the proper fittings. They are "screw-on" type of fittings that will not leak and will mate the tape with the poly hose. On Fri, 3 Nov 1995, Milligan/Roatcap wrote: > Date: Fri, 3 Nov 1995 21:23:31 -0600 > From: Milligan/Roatcap .<.milligan@smartdocs.com.>. > To: Multiple recipients of list .<.trickle-l@unl.edu.>. > Subject: Hose end monitoring > > A story, then a question. > > The story: > > A fellow I heard talking once said he used a relatively thin-walled > T-Tape-like product on the ends of his subsurface lines. He used a foot or > so length that rose from underground at about a 45 degree angle so when the > line was adequately pressurized these otherwise limp tails would stand up. > He could thus drive his pickup around the ends of the field to see if any of > his subsurface lines lacked pressure (either from a break or a constriction). > > I am setting up to make this modification this winter. Right now I spend (or > should spend) lots of time walking my lines, listening and looking for > breaks or pinch offs from parallel roots growing above and below the line > that act like a hemostat. In the heat of summer I might (or should) walk > those lines three or four times a week. That's lots of miles! And for a > pretty so-so job of it. > > This fella said he also mounted a male barbed insert to male garden hose > fitting on the end of the flexible tail so he could put on a garden hose end > cap for flushing the lines. In addition, he mounted "tire pressure" type > valves on those caps so he could walk the lines periodically to check each > line for exact pressure and make sure he didn't have a lesser problem > (partial pinch or break) that the flexible hose ends might not show. > > Here's my question: > > I have yet to hook up the flexible end, but I tried a few of the barb to > hose end adapters. They were expensive. I can't seem to get a good seal > between the T-Tape and the barb although I'm using good stainless steel wire > ties. I tried wrapping each barb with a some electrical tape to see if it > would provide a gasketing effect and it didn't. So far the best, fastest, > cheapest flush ends I've found is the same poly tubing I use to supply the > T-Tape from the submain. (I think it's called 520x600 or something like > that) A single fold, loosely clipped with a ring cut from 1" PVC pipe seals > well and slides off easily to flush the lines. What I'm wondering, is there > a quick and inexpensive means of monitoring pressure from that doubled piece > of poly hose? Without opening it? > > Thanks for any advice you can give, > Mike > > <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Mon Nov 6 15:04 EST 1995
Date: Mon, 6 Nov 1995 08:55:10 -0600
Message-Id: .<.199511061455.AA19151@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 340

Contents:
Re: Hose end monitoring (milligan@smartdocs.com (Milligan/Roatcap))
Air pollution from PVC glue? (MEAD2513@aol.com)
testing return time (Mike Schulz .<.SCHULZM@salty.agvic.gov.au.>.)
 (Mike Schulz .<.SCHULZM@salty.agvic.gov.au.>.)
Re: Air pollution from PVC glue? (LodiCraig@aol.com)

<---------------------------------------------------------------------->

Date: Sun, 5 Nov 1995 13:49:42 -0800 From: milligan@smartdocs.com (Milligan/Roatcap) Subject: Re: Hose end monitoring >Find a catalog of Hardie Irrigation, or Ag Products for the proper >fittings. They are "screw-on" type of fittings that will not leak and >will mate the tape with the poly hose. I've tried something like you describe--a device that inserts into the tape and a outer ring slides over the tape and is supposed to screw a half turn of so to bring the union tight. If it's the same thing you refer to it is designed for a lighter tape than the 15 mil tape I'm using and doesn't work. --Mike <------------------------------>
Date: Sun, 5 Nov 1995 18:48:03 -0500 From: MEAD2513@aol.com Subject: Air pollution from PVC glue? Something we all must use when installing a drip system of any size is PVC glue. Recently, concerns in California, specifically southern California where air pollution is a major problem, the air pollution control board is putting pressure on the PVC solvent/glue industry to reduce what is know as VOC (volatile organic compounds). Deadlines have been placed on the PVC solvent/glue industry such that by 1998, only 250 gms of VOC/liter of solvent will be allowed. The solvents seem harmless, but apparently in a large geographical basin such as Los Angles when several thousand individuals working with PVC glue on a summer day with an atmospheric inversion layer, air contamination problems could occur. If you are against air pollution regulation, it probably is a moot point because the southern California regulations will most likely mutate to national and possibly international standards. It is even possible that the U.S. EPA (Environmental Protection Agency) will enforce even stricter standards. The southern California air pollution control board is rather tolerant and understanding of the PVC/glue industry and is willing to give them time to fix the potential problem. There is even a rule that has been amended the help the PVC industry make the necessary changes. Hence the 250 gms/liter standard is obtainable. The fact that local government and industry can work cooperatively together toward a mutual goal is great. If the standards were too excessive and the time frame ridiculous, the PVC pipe industry and consequently the irrigation industry that feeds off of it would suffer tremendously. I have gathered some standards from the American Society for Testing and Materials that entail step by step rule of thumb procedures when installing a PVC pipe system. These rules might help reduce the amount of VOCs and make a better pipe fusion. 1) Make a perpendicular cut to the pipe using a fine hack saw or saw specifically for PVC pipe. 2) Remove burrs from cutting. I usually wear gloves and use the glove fingers to glean the small particles clinging to the pipe after the cut. Bigger pipe might take a pocket knife to smooth the circumference of the cutting edge. 3) Apply primer to the pipe. While primer is still wet, apply the cement*. Wipe the excess glue off with a rag. If you use the finger wipe/on the pants routine, not only will you ruin your pants, but the glue on the finger will stay on your hand long enough to look like you have Leprosy. 4) After you've glued everything, wait one half to six hours for a complete drying. 5) Allow 24 to 48 hours before pressurizing with water. *We at the Water Management Research Laboratory usually turn the pipe a good 90 degrees in case small particles have etched a tiny channel down the pipe. Does anybody have comments about air pollution relationships with PVC solvents? Do you think the standards above are going too far? Are there concerns in other countries? Any additions to the 1 through 5 step procedure? ***************************************************************** Those of you that speak another language besides English, probably have noticed that when surfing the Internet, the predominate language is English. I have just learned that there is a program available that translates English into your language when viewing Web pages. I don't know if it entails reading e-mail from discussion lists like this however. The program is known as "Accent Multilingual Viewer". If you have web access, you can download a free copy (albeit a beta version) when you point your browser to: http://www.accentsoft.com/viewacc/vieweng.htm For more information, try: http://www.accentsoft.com/internet.htm Richard Mead Trickle-L owner/manager USDA-ARS-WMRL <------------------------------>
Date: Wed, 25 Oct 1995 16:48:05 +0000 From: Mike Schulz .<.SCHULZM@salty.agvic.gov.au.>. Subject: testing return time test sent on 25th Oct 16:45, eastern Australian timeSchulzzzzzzz............ Tatura a campus of the Inst. of Sustainable Irrigated Agriculture an institute of Agriculture Victoria a devision of Agriculture Energy and Minerals a department of the Government of Victoria a state of Australia Postal address <------------------------------>
Date: Thu, 26 Oct 1995 09:52:24 +0000 From: Mike Schulz .<.SCHULZM@salty.agvic.gov.au.>. Subject: Responding to Thomas M. Stein's address request The full address of the publisher as listed in the publication is; Director Central Soil Salinity Research Institute Karnal-132001 Haryana, India It was printed by; Rakesh Press Naraina Industrial Area Phase II New Delhi 110028 good luck Schulzzzzzzz............ Tatura a campus of the Inst. of Sustainable Irrigated Agriculture an institute of Agriculture Victoria a devision of Agriculture Energy and Minerals a department of the Government of Victoria a state of Australia Postal address <------------------------------>
Date: Mon, 6 Nov 1995 01:20:51 -0500 From: LodiCraig@aol.com Subject: Re: Air pollution from PVC glue? While I do not consider myself an enviornmentalist, I think I share a strong sense of conservationism with most of us involved in agriculture. Like the L.A. Basin, the San Joaquin Valley of California suffers from inversions layers and limited air mixing. As our populations grow, the air polution problems being addressed by the regulatory agencies are becoming increasingly acute. The regulations we face often seem burdensome and ridiculous, but they are not without direct and indirect benefits. The local low sulfur diesel regulations have lead to longer diesel engine life and extended oil change intervals in addition to cleaner air. Low VOC paint regulations have led to better quality paints, and the development of good industrial grade water reduced paints. As inconsequential as the quantity of VOCs produced by gluing pipe may seem, each industry must play their part. Frankly, we could probably make significant reductions in VOC emissions with products and technics already at hand. In a message dated 95-11-05 18:52:35 EST, Richard Mead writes: >3) Apply primer to the pipe. While primer is still wet, apply the cement*. >Wipe the excess glue off with a rag. How necessary is the primer step? We have used a glue I know as "Red Hot White" glue that seems to not require primer. Moving to a primerless system cuts VOC significantly right off the bat. It also saves a lot of labor and hassle. Does the U.S.D.A. or C.I.T. have any data on different types of gluing systems? Maybe its time for some comparisons? <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Tue Nov 7 15:04 EST 1995
Date: Tue, 7 Nov 1995 08:55:43 -0600
Message-Id: .<.199511071455.AA13542@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 341

Contents:
Re: Hose end monitoring ("W. Bryan Smith" .<.WSMTH@prism.clemson.edu.>.)
Re: Air pollution from PVC glue? (TFStrong@aol.com)
Re: Air pollution from PVC glue? (Merriott@aol.com)
Re: Air pollution from PVC glue? (GrapeGrowr@aol.com)
Re: Hose end monitoring (milligan@smartdocs.com (Milligan/Roatcap))
Re: Hose end monitoring ("W. Bryan Smith" .<.WSMTH@prism.clemson.edu.>.)

<---------------------------------------------------------------------->

Date: Mon, 06 Nov 1995 12:08:55 -0500 (EST) From: "W. Bryan Smith" .<.WSMTH@prism.clemson.edu.>. Subject: Re: Hose end monitoring Mike, There are several different rings available for the same base fitting from Hardie (and probably other manufacturers). I have had rings for both 10 mil and 15 mil tape - they look substantially different. You are correct in that the 10 mil rings will not allow use of a 15 mil product - try the 15 mil and see what happens. On the subject of pressure checking - I would use the 600 series tubing as you are doing with possibly a piece of the tape coupled to it if you need that visual indication. Place the small barb fitting in the side of the 600 tubing and attach about 6 inches of spaghetti, doubling the spaghetti for a seal. Then, make up one gauge with the same spaghetti attached and a barb - attach the barb to the kninked spaghetti on the 600 tubing, remove the kink and read the pressure. An alternative would be not to use spaghetti, but instead an insert fitting for the 600 tubing - insert it, unkink the tubing and read the pressure. Of course, most 600 tubing fittings are compression type - may have a problem finding what you need. I know that Hardie has insert type fittings for their .630 inch "Blue Stripe" tubing. Bryan Smith Area Water Quality Agent All opinions my own. <------------------------------>
Date: Mon, 6 Nov 1995 16:17:00 -0500 From: TFStrong@aol.com Subject: Re: Air pollution from PVC glue? As a manufacturer using PVC components, for several years we have had to purchase solvent cements with reduced VOC. I don't know of a single manufacturer of solvent cement that has not been required to cut back on VOC in Southern California including Christy and Weld-On. <------------------------------>
Date: Mon, 6 Nov 1995 17:15:35 -0500 From: Merriott@aol.com Subject: Re: Air pollution from PVC glue? I think anything they can do WITHIN REASON to reduce the amount of VOCs generated by these solvents is a good idea. Not only for the sake of the general public, but for the workers. Anyone who has breathed these fumes for any length of time probably realizes they aren't good for you. Randall <------------------------------>
Date: Mon, 6 Nov 1995 18:03:25 -0500 From: GrapeGrowr@aol.com Subject: Re: Air pollution from PVC glue? Sounds to me like another bureaucrat that has to prove that his or her salary is worthwhile. I could think of a hundred things more important than pvc solvent. About time to get rid of a lot of government people and let them get useful jobs instead of hamstringing the rest of us, the producers. <------------------------------>
Date: Mon, 6 Nov 1995 20:59:55 -0800 From: milligan@smartdocs.com (Milligan/Roatcap) Subject: Re: Hose end monitoring So many good ideas, Bryan. Wish my brain worked that well. I like the barbed guage idea, but I do have the makings for the spaghetti tube system so I'll try it too. I'll have to look around for the spaghetti barb, though. I don't recall ever seeing one of those. I'd hope it coupled fast and easy. Nopoint in staying bent over longer than necessary. Thanks, Mike >Mike, > There are several different rings available for the same base fitting from >Hardie (and probably other manufacturers). I have had rings for both 10 mil >and 15 mil tape - they look substantially different. You are correct in that >the 10 mil rings will not allow use of a 15 mil product - try the 15 mil >and see what happens. > > On the subject of pressure checking - I would use the 600 series tubing as >you are doing with possibly a piece of the tape coupled to it if you need >that visual indication. Place the small barb fitting in the side of the >600 tubing and attach about 6 inches of spaghetti, doubling the spaghetti >for a seal. Then, make up one gauge with the same spaghetti attached and >a barb - attach the barb to the kninked spaghetti on the 600 tubing, >remove the kink and read the pressure. > > An alternative would be not to use spaghetti, but instead an insert fitting >for the 600 tubing - insert it, unkink the tubing and read the pressure. >Of course, most 600 tubing fittings are compression type - may have a >problem finding what you need. I know that Hardie has insert type fittings >for their .630 inch "Blue Stripe" tubing. > >Bryan Smith >Area Water Quality Agent > >All opinions my own. > > <------------------------------>
Date: Tue, 07 Nov 1995 08:56:41 -0500 (EST) From: "W. Bryan Smith" .<.WSMTH@prism.clemson.edu.>. Subject: Re: Hose end monitoring Mike, You might try Ag Products in California for the spaghetti barbs. Wade Rain in Georgia used to also carry them. Bryan <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Wed Nov 8 15:06 EST 1995
Date: Wed, 8 Nov 1995 08:58:14 -0600
Message-Id: .<.199511081458.AA14315@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 342

Contents:
Hose end monitoring (sstyles@oboe.aix.calpoly.edu (Stuart W. Styles))
Re: Hose end monitoring (milligan@smartdocs.com (Milligan/Roatcap))
Re: Air pollution from PVC glue? ("W. Bryan Smith" .<.WSMTH@prism.clemson.edu.>.)
Re: Hose end monitoring (Dripigate@aol.com)
crop stage/ET work (Spofford .<.engts@wntcdb.wntc.nrcs.usda.gov.>.)

<---------------------------------------------------------------------->

Date: Tue, 7 Nov 1995 12:00:10 -0800 From: sstyles@oboe.aix.calpoly.edu (Stuart W. Styles) Subject: Hose end monitoring On 11/6, Bryan Smith wrote: > On the subject of pressure checking - I would use the 600 series tubing as >you are doing with possibly a piece of the tape coupled to it if you need >that visual indication. Place the small barb fitting in the side of the >600 tubing and attach about 6 inches of spaghetti, doubling the spaghetti >for a seal. Then, make up one gauge with the same spaghetti attached and >a barb - attach the barb to the kninked spaghetti on the 600 tubing, >remove the kink and read the pressure. We have used something similar. Instead of the spaghetti tubing, attach an emitter (1/2 gph) to the piece of tubing. Use an emitter that has a barb on the discharge for spaghetti tubing (Woodpecker is one that works). This will give a visual (emitter dripping) plus an inexpensive location to check pressures. The pressure gauge setup would made with a piece of spaghetti so that a quick pressure measurement could be made in the field. I have seen these used on microspray systems, but it should work on the subsurface system as long as the end doesn't get too wet. <------------------------------>
Date: Tue, 7 Nov 1995 20:07:46 -0800 From: milligan@smartdocs.com (Milligan/Roatcap) Subject: Re: Hose end monitoring >On 11/6, Bryan Smith wrote: >We have used something similar. Instead of the spaghetti tubing, attach an >emitter (1/2 gph) to the piece of tubing. Use an emitter that has a barb >on the discharge for spaghetti tubing (Woodpecker is one that works). This >will give a visual (emitter dripping) plus an inexpensive location to check >pressures. The pressure gauge setup would made with a piece of spaghetti so >that a quick pressure measurement could be made in the field. I have seen >these used on microspray systems, but it should work on the subsurface >system as long as the end doesn't get too wet. Man, this listserver is a wealth of information! I have exactly what I need to do all of the above right now except I need to go out and buy that type of emitter. That's easy enough. An extra benefit of this idea is that I used to see an old E-2 (Hardie? Roberts?) type emitters sold at a local garden store that could be shut off by turning the topknot 90 degrees. Buying through a garden center my be a bit expensive, but I might be able to find something comparable through an ag supply source. Thanks, Mike <------------------------------>
Date: Wed, 08 Nov 1995 08:03:34 -0500 (EST) From: "W. Bryan Smith" .<.WSMTH@prism.clemson.edu.>. Subject: Re: Air pollution from PVC glue? Here's the latest on clean air from the EPA. Apparently we are breathing cleaner air today than anytime in the past few decades. ------------------------------------------------------------------- From: IN%"epa-press@unixmail.rtpnc.epa.gov" 6-NOV-1995 17:14:56.35 To: IN%"epa-press@unixmail.rtpnc.epa.gov" "Multiple recipients of list" CC: Subj: PR EPA REPORT SHOWS AMERICANS BREATHING HEALTHIER AIR FOR RELEASE: MONDAY, NOVEMBER 6, 1995 EPA REPORT SHOWS AMERICANS BREATHING HEALTHIER AIR Underscoring the success of efforts to protect public health from air pollution, EPA today released its annual report on the air quality trends in America's urban areas. The report shows reductions in all major air pollutants nationally. The trends analysis shows the following improvements in air quality during the 10-year period 1985-94: Smog (ground-level ozone) levels dropped 12 percent. Lead levels decreased 86 percent. Sulfur dioxide levels fell 25 percent. Carbon monoxide levels declined 28 percent. Particulate (dirt, dust, soot) levels decreased 20 percent from 1988-1994 (the particulate standard was changed in 1987, so long-term data are not available). Nitrogen dioxide levels fell nine percent. "In the last five years, our efforts to protect public health have resulted in 50 million more Americans who are now breathing far healthier air," said EPA Administrator Carol Browner. "The Clinton Administration is working with industry and state and local governments to find common-sense ways to keep ensuring cleaner air for all Americans." EPA today also released 1994 air quality data showing that more than half of the 98 areas that did not meet health standards for smog now do. What this means in human terms is that when the Clean Air Act Amendments were passed in 1990, 140 million people were living in areas violating the health-protection standard for smog, the nation's most pervasive air pollutant. Today, however, more than one third, or nearly 50 million, of those people are now breathing air meeting the standard and free of dangerous smog levels. The 1994 data also show that 28 of the 42 areas not meeting health standards for carbon monoxide now have air quality data meeting the standard. The air quality data also show that 1994 was the third consecutive year in which no U.S. cities violated the nitrogen dioxide standard. Nitrogen dioxide is not only a health danger in itself, but is also a prime ingredient in the formation of both acid rain and smog. (Copies can be obtained from and direct questions on the report to the Emissions Monitoring and Analysis Division (MD-14), Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, Research Triangle Park, N.C. 27711; phone 919-541-5558. A brochure on the report will also be computer-accessible immediately through EPA's Home Page on the Internet at http://www.epa.gov/docs/oar/oarhome.html, and on the electronic bulletin board system, the Technology Transfer Network(TTN) at 919-541-5742 (backup number for access problems is 919-541-5384) under "Recently Signed Rules" on the TTN's Clean Air Act Amendments bulletin board.) <------------------------------>
Date: Wed, 8 Nov 1995 08:08:36 -0500 From: Dripigate@aol.com Subject: Re: Hose end monitoring Pressure indication in itself would not indicate partially "pinched dripperline;" a flow measurement is actually required in order to assertain deterioration of the dripperline.( Bernoulli's) Good luck. RWFF. <------------------------------>
Date: Wed, 8 Nov 95 06:36:51 PST From: Spofford .<.engts@wntcdb.wntc.nrcs.usda.gov.>. Subject: crop stage/ET work About a month ago I picked up on a news summary a note that USDA researchers were working on a project to determine young plant uptake and trying to come up with factors to account for the reduction of water possible by irrigation based on stage of growth. Does anyone know where and who is doing this work? Checking through my primary sources has led nowhere and any leads would be appreciated. Thanks for the help provided. Tom **************************** Tom L. Spofford, Irrigation Engineer National Water and Climate Center Natural Resources Conservation Service 101 SW Main St., Suite 1600 Portland, OR 97204-3224 Phone (503) 414-3075 FAX (503) 414-3101 e-mail a16tspofford@attmail.com **************************** <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Thu Nov 9 15:07 EST 1995
Date: Thu, 9 Nov 1995 08:58:47 -0600
Message-Id: .<.199511091458.AA26163@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 343

Contents:
Re: crop stage/ET work (Tom Hodges .<.thodges@beta.tricity.wsu.edu.>.)
Re: Hose end monitoring (milligan@smartdocs.com (Milligan/Roatcap))
Re: crop stage/ET work (milligan@smartdocs.com (Milligan/Roatcap))
ET AND LAI (Ing.Agr. Claudio Garcia      .<.cgarcia@inialb.org.uy.>.)
Re: Hose end monitoring (Dripigate@aol.com)

<---------------------------------------------------------------------->

Date: Wed, 8 Nov 1995 07:59:45 -0800 (PST) From: Tom Hodges .<.thodges@beta.tricity.wsu.edu.>. Subject: Re: crop stage/ET work In crop growth simulation models, et is calculated from potential et and simulated leaf area index. Thus simpotato uses a modified priestly- taylor potential et and a beers law type light interception function with simulated lai as the intercepting medium. Of course, lai is not randomly distributed in the case of a young row crop so some models use plant height, width, and plant spacing within and between rows to determine the volume in which lai is distributed. Tom Tom Hodges, Cropping Systems Modeler USDA-ARS email: thodges@beta.tricity.wsu.edu Rt. 2, Box 2953-A voice: 509-786-9207 Prosser, WA 99350 USA Fax: 509-786-9370 == ## Rent this space ## == If this represents anything, it is only my opinion. On Wed, 8 Nov 1995, Spofford wrote: > > About a month ago I picked up on a news summary a note that USDA > researchers were working on a project to determine young plant uptake > and trying to come up with factors to account for the reduction of water > possible by irrigation based on stage of growth. Does anyone know where > and who is doing this work? Checking through my primary sources has led > nowhere and any leads would be appreciated. > > Thanks for the help provided. > > Tom > > **************************** > Tom L. Spofford, Irrigation Engineer > National Water and Climate Center > Natural Resources Conservation Service > 101 SW Main St., Suite 1600 > Portland, OR 97204-3224 > Phone (503) 414-3075 > FAX (503) 414-3101 > e-mail a16tspofford@attmail.com > **************************** > > <------------------------------>
Date: Wed, 8 Nov 1995 08:27:47 -0800 From: milligan@smartdocs.com (Milligan/Roatcap) Subject: Re: Hose end monitoring >Pressure indication in itself would not indicate partially "pinched >dripperline;" a flow measurement is actually required in order to assertain >deterioration of the dripperline.( Bernoulli's) >Good luck. >RWFF. Point taken. You are right, and I know that I should be sampling the flow rates. On the other hand, unless the emmission ports of the T-Tape are obstructed--and befuddling the whole calculation, then 10 psi is 10 psi. As far as the emitters are concerned their needs are being met even if there is some line pinching. My next question would be: What is the world's laziest way to check flow rates from emitters? (Could each line be monitored separately with an inserted flowmeter for periodic checks??) I have been very delinquent in this department and need to clean up my act in `96. My lines are about 2" to 3" deep (any deeper and I fear bigger problems with roots sqeezing off the lines). When the seedlings are young, it's pretty easy to look up a nice, clean row and see the uniformity of the wetted zone's spread. But towards the end of the 2nd season and on through the 4th season, the branches of my Christmas trees spread and prunings accumulate, obscuring and eventually eliminating the view of the wetted zone. I was told I should be using a small measuring cup under the line at selected points. My work load is lightening so I'll try, but the prospect doesn't sound too pleasant. Ain't as limber as I used to be. Thanks, Mike <------------------------------>
Date: Wed, 8 Nov 1995 08:36:26 -0800 From: milligan@smartdocs.com (Milligan/Roatcap) Subject: Re: crop stage/ET work >About a month ago I picked up on a news summary a note that USDA >researchers were working on a project to determine young plant uptake >and trying to come up with factors to account for the reduction of water >possible by irrigation based on stage of growth. Does anyone know where >and who is doing this work? Checking through my primary sources has led >nowhere and any leads would be appreciated. Yeah, I'd like to hear about this, too. My first year seedlings are a real puzzle when it comes to scheduling. Mike <------------------------------>
Date: Thu, 09 Nov 95 07:50:31 URU From: Ing.Agr. Claudio Garcia .<.cgarcia@inialb.org.uy.>. Subject: ET AND LAI Five years ago we begun to work in ET and LAI, mainly in pear and sweet onion at field. There are some many problems in our case to determine ET AND LAI because of the climate. it is not regular through the year. We are trying for this year to work in a "rain out shelter" with some lysimeters. If someone are interested in this information, please let me know. --- <-------------------------------------------------------------------------->
Soil Water and Climate Department NATIONAL RESEARCH INSTITUTE OF AGRICULTURE Ing.Agr. Claudio Garcia ANDES 1365 P12 MONTEVIDEO URUGUAY cgarcia@inialb.org.uy CP 11100 SOUTH AMERICA <-------------------------------------------------------------------------->
<------------------------------>
Date: Thu, 9 Nov 1995 08:55:55 -0500 From: Dripigate@aol.com Subject: Re: Hose end monitoring Confidence in good water husbandry will prevent clogging. i.e. water chemistry coupled with good fertilizer grade materials applied in a manner that cleans and applys at the same time. Money up front on great filtration and accurate injection equip is huge asset. Design, rate of fill and start/stop fill control and good vacuum/air release can keep the system factory clean. External clogging i.e. root management and vacuum control are prerquisites. I have systems I intalled in 79 still "dripping!!" like new. I will be happy to assist where possible. <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Fri Nov 10 15:22 EST 1995
Date: Fri, 10 Nov 1995 09:14:07 -0600
Message-Id: .<.199511101514.AA00539@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 344

Contents:
Re: Hose end monitoring (FLamm@oznet.ksu.edu (Freddie Lamm))
Re[2]: Hose end monitoring ("Jerry Neufeld" .<.jneufeld@fs.scs.unr.edu.>.)
Re: Scheduling ****for young crops*** (FLamm@oznet.ksu.edu (Freddie Lamm))
Re: Longevity of systems (FLamm@oznet.ksu.edu (Freddie Lamm))
      interruption of computer ("TERRY SNYDER" .<.TERRYS@wrfs2.swrcb.ca.gov.>.)
Re ET and LAI (meissner.tony@wpo.pi.sa.gov.au)
Re: interruption of computer (bill robertson .<.robertsb@matrix.newpaltz.edu.>.)
Re: interruption of computer (Nhpjr@aol.com)
Re: interruption of computer (bill robertson .<.robertsb@matrix.newpaltz.edu.>.)
Re: Re[2]: Hose end monitoring (Dripigate@aol.com)
Re: Longevity of systems (Dripigate@aol.com)
      Re: Scheduling ****for young crops*** ("M. Meron" .<.MERON@migal.co.il.>.)
ET and LAI (Ing.Agr. Claudio Garcia      .<.cgarcia@inialb.org.uy.>.)

<---------------------------------------------------------------------->

Date: 09 Nov 95 11:11:47 CST From: FLamm@oznet.ksu.edu (Freddie Lamm) Subject: Re: Hose end monitoring Mike: A relatively easy way to check the whole system, not the **individual emitters** you mentioned is to record **both system flow and pressure** over a period of time. You should know from design what the flow should be at a given pressure. So by charting the performance periodically over a long period of time, you should be able to monitor the performance and slowly alert you to potential maintenance needs. Recrding of both pressures and flows helps to determine if a leak or plugging is the problem and haow fast the problem is degrading. Freddie *------------------------------------------------------------------- Freddie Lamm * Research Agricultural Engineer *** o KSU Northwest Research-Extension Center ***** /|\ 105 Experiment Farm Road *******\\ Colby, Kansas 67701-1697 ********* Ph. 913-462-6281 *********** FAX 913-462-2315 ************* Email:flamm@oznet.ksu.edu It's all downhill from here. ------ THERE'S NO DOMAIN LIKE OZ, THERE'S NO DOMAIN LIKE OZ. ------ <------------------------------>
Date: Thu, 09 Nov 95 09:32:55 PST From: "Jerry Neufeld" .<.jneufeld@fs.scs.unr.edu.>. Subject: Re[2]: Hose end monitoring I thought the paragraph below was interesting because it sounds like it comes from someone with a great deal of practical experience. However, I don't know who you are! Could you please identify yourself. Jerry Neufeld ______________________________ Reply Separator _________________________________ Subject: Re: Hose end monitoring Author: .<.trickle-l@unl.edu.>. at smtplink-unscs Date: 11/9/95 6:02 AM Confidence in good water husbandry will prevent clogging. i.e. water chemistry coupled with good fertilizer grade materials applied in a manner that cleans and applys at the same time. Money up front on great filtration and accurate injection equip is huge asset. Design, rate of fill and start/stop fill control and good vacuum/air release can keep the system factory clean. External clogging i.e. root management and vacuum control are prerquisites. I have systems I intalled in 79 still "dripping!!" like new. I will be happy to assist where possible. <------------------------------>
Date: 09 Nov 95 11:18:51 CST From: FLamm@oznet.ksu.edu (Freddie Lamm) Subject: Re: Scheduling ****for young crops*** Mike: It might be worthwhile to consider that in initial establishment of crops, ET-based irrigation scheduling may not be valid. More important is the ability of the scheduling to keep ***adequate*** water in the crop root zone which may be very small at that point in time. There may also be the need to utilize evaporative cooling for suppression of plant water stress during this critical period. These areas of scheduling are more macromanagement issues while ET- based sceduling is micromanagement. Both have their place in irrigated crop production. Freddie * ------------------------------------------------------------------- Freddie Lamm * Research Agricultural Engineer *** o KSU Northwest Research-Extension Center ***** /|\ 105 Experiment Farm Road *******\\ Colby, Kansas 67701-1697 ********* Ph. 913-462-6281 *********** FAX 913-462-2315 ************* Email:flamm@oznet.ksu.edu It's all downhill from here. ------ THERE'S NO DOMAIN LIKE OZ, THERE'S NO DOMAIN LIKE OZ. ------ <------------------------------>
Date: 09 Nov 95 11:27:06 CST From: FLamm@oznet.ksu.edu (Freddie Lamm) Subject: Re: Longevity of systems As a scientist interested in longevity of microirrigation systems for non-traditional low value crops (such as field corn), I would be keenly interested in some of the specifics of your systems that have been dripping since 1979. For example, type of emitters, flowrates, operating pressures, water source and quality, depth. I am particularly interested in longterm performance of drip tape products. I hear anecdotal reports of a longterm tape system (15-20 years) I believe in Michigan. Does anyone know any particulars about this or any other 15+ year tape systems?? Freddie * SOMEONE SENT THIS MESSAGE ON > Date sent: 09-Nov-1995 07:50:03 -0600 > Confidence in good water husbandry will prevent clogging. i.e. water > chemistry coupled with good fertilizer grade materials applied in a manner > that cleans and applys at the same time. Money up front on great filtration > and accurate injection equip is huge asset. Design, rate of fill and > start/stop fill control and good vacuum/air release can keep the system > factory clean. External clogging i.e. root management and vacuum control are > prerquisites. I have systems I intalled in 79 still "dripping!!" like new. I > will be happy to assist where possible. >------------------------------------------------------------------- Freddie Lamm * Research Agricultural Engineer *** o KSU Northwest Research-Extension Center ***** /|\ 105 Experiment Farm Road *******\\ Colby, Kansas 67701-1697 ********* Ph. 913-462-6281 *********** FAX 913-462-2315 ************* Email:flamm@oznet.ksu.edu It's all downhill from here. ------ THERE'S NO DOMAIN LIKE OZ, THERE'S NO DOMAIN LIKE OZ. ------ <------------------------------>
Date: Thu, 9 Nov 1995 11:38:01 PST From: "TERRY SNYDER" .<.TERRYS@wrfs2.swrcb.ca.gov.>. Subject: interruption of computer Is there a way we can amend this system so that every message does not interrupt my screen with a message that I have to click the ok button to remove or am I the only one on the list with this problem. Please let me know what are the options. Terry Snyder Division of Water Rights P.O. Box 2000 Sacraemnto, CA 95812-2000 (916) 657-2061 Fax 657-1485 email terrys@wrfs2.swrcb.ca.gov <------------------------------>
Date: Fri, 10 Nov 1995 10:39:34 +0930 From: meissner.tony@wpo.pi.sa.gov.au Subject: Re ET and LAI Claudio, have you thought of using sap flow units to measure ET (strictly transpiration). Cheers Tony M :-) ***************************************************** * Tony Meissner * * Senior Research Scientist (Soils) * * Primary Industries, South Australia * * PO Box 411, Loxton SA, Australia 5333 * * Tel. 085 95 9146 * * Fax: 085 95 9199 * * email meissner.tony@pi.sa.gov.au * ********************************************************* <------------------------------>
Date: Thu, 9 Nov 1995 19:57:07 -0500 (EST) From: bill robertson .<.robertsb@matrix.newpaltz.edu.>. Subject: Re: interruption of computer > > Is there a way we can amend this system so that every message does > not interrupt my screen with a message that I have to click the ok button > to remove or am I the only one on the list with this problem. Please > let me know what are the options. > Terry Snyder Terry - this is a function of your mail system - not this list. Check with people there. Bill Robertson robertsb@matrix.newpaltz.edu or vw2847@uscc1.usma.edu <------------------------------>
Date: Thu, 9 Nov 1995 20:07:55 -0500 From: Nhpjr@aol.com Subject: Re: interruption of computer I agree that if the system could be amended to more easily delete messages, it would be good. <------------------------------>
Date: Thu, 9 Nov 1995 20:16:25 -0500 (EST) From: bill robertson .<.robertsb@matrix.newpaltz.edu.>. Subject: Re: interruption of computer > > I agree that if the system could be amended to more easily delete messages, > it would be good. > THIS TOO IS YOUR (AOL) program. <------------------------------>
Date: Thu, 9 Nov 1995 22:22:44 -0500 From: Dripigate@aol.com Subject: Re: Re[2]: Hose end monitoring Dripigate is my call sign. I am Robin Franks, I work for Netafim Irrigation Inc and am responsible for product applications with the end users throughout the West. Background is extensive design, installation and management of sprinkler and drip irrigation Worldwide since, 69 Telephone is 209 883 9507 and fax is 9508. Am happy to help where necessary to improve the real application of drip. <------------------------------>
Date: Thu, 9 Nov 1995 22:31:52 -0500 From: Dripigate@aol.com Subject: Re: Longevity of systems Primarily I have used Netafim "inline" and "integral" dripperline in permanent and portable applications. Tapes in long term applications at least 12 years of life is reasonable. My preference has been above ground Roll ourt and pick up as the flexability of alternative crops and also leased ground make these initially moore expensive "hard hose" moore attractive and certainly more economical. They also are user friendly! Long term buried tape is great in mono culture such as cane and asparagus. reusable pencils better, works at better pressures ( 1atm + ) much easier to clean and to keep clean. There are numbers of options, all seriously vunerable to management. Price predication has lead to unbelievable failures on short term apparent savings. Robin Franks. Dripigate. <------------------------------>
Date: Fri, 10 Nov 1995 08:40:21 GMT+0200 From: "M. Meron" .<.MERON@migal.co.il.>. Subject: Re: Scheduling ****for young crops*** A very simple and straightforward way to factor potential to actual ET in young crops is to determine light interception (LI) in the field and multiplying ETp with LI fraction. To measure LI use a Light-Bar (Linear PAR meter), which is quite expensive, or simply measure the shade on the ground noon time, and calculate the fraction of the shaded line segments from the overall row width, and use this to factor ETp. This one is called the "Sunfleck" method and it works well for crops like cotton, grondnuts and others. For corn and similar leaf structure add 10% to the shade. The theoretical background is explained in: Meron, Fuchs, Levin, Halel and Feuer, 1990. Evaluation of evapotranspiration by combining plant characteristics and meteorological information. Acta Horticultuae 278 501-507. Reprints could be sent on request. ========================================================================= MIGAL Galilee Technology Center Crop Ecology Laboratory Kiryat Shmona PO Box 90 000 Rosh Pina 12 100 ISRAEL Phone +972-6-953559 Fax: +972-6-944980 Email: MERON@migal.co.il ========================================================================= <------------------------------>
Date: Fri, 10 Nov 95 08:45:47 URU From: Ing.Agr. Claudio Garcia .<.cgarcia@inialb.org.uy.>. Subject: ET and LAI At this time we are used sap flow units to measure ET. Also we have Licor equipment to measure at field and in the lab. We trying to found the relationship beetwen ET, leaf potencial, and Evaporation. We have a program to the farmer with financial cooperation to the world bank that they can call to the Experimental Station and obtain the data of Evaporation daily o weekly. --- <-------------------------------------------------------------------------->
Soil Water and Climate Department NATIONAL RESEARCH INSTITUTE OF AGRICULTURE Ing.Agr. Claudio Garcia ANDES 1365 P12 MONTEVIDEO URUGUAY cgarcia@inialb.org.uy CP 11100 SOUTH AMERICA <-------------------------------------------------------------------------->
<------------------------------>
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From root@crcnis1.unl.edu Sat Nov 11 15:22 EST 1995
Date: Sat, 11 Nov 1995 09:14:49 -0600
Message-Id: .<.199511111514.AA23934@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 345

Contents:
      Re: interruption of computer (.<.ABUZREIG@net2.eos.uoguelph.ca.>.)
Re: Scheduling ****for young crops*** (Keith Smettem .<.hydsol@uniwa.uwa.edu.au.>.)

<---------------------------------------------------------------------->

Date: Fri, 10 Nov 1995 14:58:47 EDT From: .<.ABUZREIG@net2.eos.uoguelph.ca.>. Subject: Re: interruption of computer > Date sent: Thu, 9 Nov 1995 13:54:28 -0600 > Send reply to: .<.trickle-l@unl.edu.>. > From: "TERRY SNYDER" .<.TERRYS@wrfs2.swrcb.ca.gov.>. > To: Multiple recipients of list .<.trickle-l@unl.edu.>. > Subject: interruption of computer > Is there a way we can amend this system so that every message does > not interrupt my screen with a message that I have to click the ok button > to remove or am I the only one on the list with this problem. Please > let me know what are the options. > Terry Snyder > Division of Water Rights > P.O. Box 2000 > Sacraemnto, CA 95812-2000 > (916) 657-2061 Fax 657-1485 > email terrys@wrfs2.swrcb.ca.gov In your mail program, there should be a section to costumize or to change "preferences". Just cancel the "notification for a new mail" feature. You can do that from window I beleive (control pannel-network) Majed, <------------------------------>
Date: Sat, 11 Nov 1995 16:49:36 +0800 (WST) From: Keith Smettem .<.hydsol@uniwa.uwa.edu.au.>. Subject: Re: Scheduling ****for young crops*** Dear Migel, I was interested in your paper on ET estimation. Could you send me a reprint? Keith Smettem, Dept of Soil Science and Plant Nutrition, The University of Western Australia, Nedlands, W.A. 6009 Australia. Thanking you in advance. <------------------------------>
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From root@crcnis1.unl.edu Sun Nov 12 15:23 EST 1995
Date: Sun, 12 Nov 1995 09:15:34 -0600
Message-Id: .<.199511121515.AA06564@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 346

Contents:
Re: crop stage/ET work (Jed T Waddell .<.wadde002@maroon.tc.umn.edu.>.)

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Date: Sat, 11 Nov 1995 14:16:45 -0600 (CST) From: Jed T Waddell .<.wadde002@maroon.tc.umn.edu.>. Subject: Re: crop stage/ET work On Wed, 8 Nov 1995, Spofford wrote: > > About a month ago I picked up on a news summary a note that USDA > researchers were working on a project to determine young plant uptake > and trying to come up with factors to account for the reduction of water > possible by irrigation based on stage of growth. Does anyone know where > and who is doing this work? Checking through my primary sources has led > nowhere and any leads would be appreciated. Dear trickle-l recipients, For the past two years I (University of Minnesota, Dept of Soil,Water and Climate) have been intensively monitoring soil moisture status (via neutron probe and tensiometers) along with North Dakota State Univ. This project was designed to get a better understanding of ET to develop a "Checkbook Method" for the farmer's use. By using a capacitance type approach, we are calculating a water budget where: Use = Rain + Irrig. - Deep Percolation +/- Storage, with sprinkler and drip irrigated potato (Russett Burbank). Some preliminary analysis with TDR indicated that by full cover (LAI = 1.0) the ETc = ETp. However, at this time I cannot answer the question about early water use but hopefully in a few months we should have that water use from emergence until full cover. Other work we have done was to quantify root morphology differences between drip (surface and buried at 25 cm) and sprinkler. Perhaps if someone could help me, we could get some root distribution pictures I have taken onto the trickle-l home page. There were some very big differences. Love the trickle-l server, Jed Waddell University of Minnesota, Dept. of Soil Water and Climate. <------------------------------>
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From root@crcnis1.unl.edu Mon Nov 13 15:24 EST 1995
Date: Mon, 13 Nov 1995 09:16:06 -0600
Message-Id: .<.199511131516.AA22748@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 347

Contents:
Re: interruption of computer (LodiCraig@aol.com)
Re: crop stage/ET work (LodiCraig@aol.com)
Re: crop stage/ET work (jp@unlinfo.unl.edu (jerome pier))

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Date: Sun, 12 Nov 1995 11:45:27 -0500 From: LodiCraig@aol.com Subject: Re: interruption of computer In a message dated 95-11-09 20:12:20 EST, Nhpjr@aol.com writes: >I agree that if the system could be amended to more easily delete messages, >it would be good. > RE: Easy deletion. If you are using AOL 2.5 for Windows, groups of mail can be deleted by clicking on the first of the group, then shift + click on the last in the group causing the whole group of messages to be highlighed. Then simply press the delete key and confirm. Holding down the Ctrl key while clicking allows highlighting of additional non-consecutive entries for wholesale deletion. (These are the same methods used in the file manager.) This works for listings either from the Mail+Read Incoming Mail selection, or the "Personal Filing Cabinet." <------------------------------>
Date: Sun, 12 Nov 1995 11:45:32 -0500 From: LodiCraig@aol.com Subject: Re: crop stage/ET work In a message dated 95-11-08 09:34:31 EST, you write: >About a month ago I picked up on a news summary a note that USDA >researchers were working on a project to determine young plant uptake >and trying to come up with factors to account for the reduction of water >possible by irrigation based on stage of growth. Does anyone know where >and who is doing this work? Checking through my primary sources has led >nowhere and any leads would be appreciated. > As previously mentioned, using the Et times the crop correction factor adjusted for growth stage by calculating leaf surface area is pretty much state of the art for now. Dr. Terry Prichard of University of California at Davis has done extensive work with replicated irrigation trials in grapes evaluating for relationship between water quantity applied, timing of application, and quality. Apparently variety makes a significant differance ... different varieties in different enviornments have different needs ... and it takes several years to distill reliable data for general distribution. There is a lot of room and a great need for more research into these issues, especially in regions where water demand exceeds supply. Sincerely, Craig <------------------------------>
Date: Sun, 12 Nov 1995 15:48:12 -0600 (CST) From: jp@unlinfo.unl.edu (jerome pier) Subject: Re: crop stage/ET work Dear Jed, Could you briefly describe what you found? I too did some trench profile root distribution work under buried drip and would be very interested to hear what you observed. > Other work we have done was to quantify root morphology > differences between drip (surface and buried at 25 cm) and sprinkler. > Perhaps if someone could help me, we could get some root distribution > pictures I have taken onto the trickle-l home page. There were some very > big differences. > > > Love the trickle-l server, > > Jed Waddell > University of Minnesota, Dept. of Soil Water and Climate. > -- Sincerely, Jerome Pier Post-Doctoral Research Assistant Biological Systems Engineering, Univ. Nebraska - Lincoln jp@unl.edu <------------------------------>
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From root@crcnis1.unl.edu Tue Nov 14 15:25 EST 1995
Date: Tue, 14 Nov 1995 09:16:38 -0600
Message-Id: .<.199511141516.AA16681@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 348

Contents:
 (OSTER@pop.ucr.edu (James D. Oster))
Re:  (flowers@Rt66.com (Wilderness Flowers))
Trickle turf irrigation (sinfield@deakin.edu.au (Dale Sinfield))
Re: Air pollution from PVC glue? (CTaylor26@aol.com)

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Date: Mon, 13 Nov 1995 11:17:55 -0600 From: OSTER@pop.ucr.edu (James D. Oster) Subject: I am writing papers for ASCE about a field project where we tested SDI, LEPA, and improved furrow irrigation systems. Does anyone know about recent published information about the longevity of SDI and LEPA systems as installed and operated by farmers? I would also be willing to reference anyone who has actual field experience; such a reference would be as a 'private communication' which would require the name of the source and maybe the address as well. Thanks in advance and best regards Jim Jim Oster Extension Soil and Water Specialist Dept. of Soil & Env. Sciences University of California Riverside CA 92521 Phone (909)787-5100 FAX (909) 787-5522 Admin. Assistant: Gwyn Dixon--(909) 787-5522 (Phone and FAX) <------------------------------>
Date: Mon, 13 Nov 95 10:56:51 MST From: flowers@Rt66.com (Wilderness Flowers) Subject: Re: >I am writing papers for ASCE about a field project where we tested SDI, >LEPA, and improved furrow irrigation systems. Does anyone know about recent >published information about the longevity of SDI and LEPA systems as >installed and operated by farmers? I would also be willing to reference >anyone who has actual field experience; such a reference would be as a >'private communication' which would require the name of the source and maybe >the address as well. > >Thanks in advance and best regards >Jim > >Jim Oster >Extension Soil and Water Specialist >Dept. of Soil & Env. Sciences >University of California >Riverside CA 92521 >Phone (909)787-5100 >FAX (909) 787-5522 >Admin. Assistant: Gwyn Dixon--(909) 787-5522 (Phone and FAX) > > > jim I would also be interested in sources of info/applications thanks Martin Connaughton Wilderness Flowers Rt 19 box 111-D Santa Fe NM 505 988 3096 Martin Connaughton Wilderness Flowers Rt.19 Box 111D Santa Fe, NM 87505 "It could only be fresher if you grew it" <------------------------------>
Date: Tue, 14 Nov 1995 09:12:30 +1100 (EST) From: sinfield@deakin.edu.au (Dale Sinfield) Subject: Trickle turf irrigation SUB-SURFACE DRIP IRRIGATION - OPERATIONAL AND DESIGN EXPERIENCE Hello all you experts out there. The following is a repeat of a message I sent to the group some three weeks ago. I am sending it again in case some people who may have some relevant comments did not see it. Many thanks to Rodney Ruskin of Geoflow for all the help he has been since my original enquiry.=20 " I am enquiring about any experiences out there anyone might have with sub-surface dripper systems, in the field of application of treated effluent in particular, or any other source in general. I am currently designing the effluent re-use component of our cities new Sewage Treatment Plant. As part of that project approximately 12 ML/day (12,000m=B3) of reclaimed water (tertiary treated effluent) is to be used on mostly irrigated woodlots and possibly an agricultural venture such as a vineyard. However approximately 500 KL/day (500m=B3) is being considered for use on= the cities parks and recreational playing fields that are within an economic distance of the treatment plant. These parks and gardens are presently irrigated with a combination of potable water, and water from the nearby Murray River. The method of application is by pop-up gear driven sprinklers. It is relatively straightforward (although expensive) engineering exercise to provide the reclaimed water to these parks and areas by pumping from our maturation lagoon up to a 1 ML Reservoir and then gravity feeding the reclaimed water into the existing sprinkler pipework some 3 km away. Converting the system such that the feed is reclaimed water is not a big issue, what is is the method of application. It is possible to utilise the existing sprinkler system and pipework but it places limitations on us in the areas of gravity feeder main, number of stages, times of the day over which irrigation can take place and EPA and Health Department concerns and regulations. Not to mention public opinion, which is yet to be accurately gauged but could be the overriding constraint. The alternative is the use of the sub-surface dripper systems such as products like Wasteflow and Rootguard offered by Geoflow inc. It would appear that these products offer advantages in versatility in staging, gravity main minimisation, application control etc for my project. My problem lies in that whilst it does not seem to be technically a difficult matter to retrofit the existing sprinkler system over to sub-surface drippers or indeed install a new system, there is little practical design or in-situ experience of these products over large areas eg > 3 ha (7 acres) and for a reasonable length of time eg > 2 years. Consequently it is difficult to gauge the effectiveness, suitability and performance of these products. Has anyone had some experiences or know some contacts out there that might be enlightening ? Our soils are variable in all our parks from sandy loam through to clay loam. We expect emitter spacings of 60cm (2 ft) and similar spacings for laterals. I would be grateful if anyone could forward any comments they might have on experiences with these products and traps/pitfalls they have encountered in the design and or operation of these systems. Any contact names, numbers, e-mail addresses would be appreciated as well as any alternative products to the Geoflow products for evaluation." Dale Sinfield sinfield@deakin.edu.au Dale Sinfield=20 "A little Tassie export" <------------------------------>
Date: Mon, 13 Nov 1995 22:16:52 -0500 From: CTaylor26@aol.com Subject: Re: Air pollution from PVC glue? Inregards to the PVC glues and primers, has there been any test on the long terms effects. fumes or contact to skin and if so what type of results have been found? I know I'm not the only one to have had primer run down into an open wound. OUCH! Sure Shot Irrigation Carl Taylor <------------------------------>
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From root@crcnis1.unl.edu Wed Nov 15 15:25 EST 1995
Date: Wed, 15 Nov 1995 09:17:19 -0600
Message-Id: .<.199511151517.AA07197@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 349

Contents:
Intl. Arid Lands Consortium Home Page (kwaser@ag.Arizona.EDU (Katherine Waser))
Re: Intl. Arid Lands Consortium Home Page (GrapeGrowr@aol.com)

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Date: Tue, 14 Nov 1995 15:28:56 -0700 From: kwaser@ag.Arizona.EDU (Katherine Waser) Subject: Intl. Arid Lands Consortium Home Page [Note: I am posting this message to those mailing lists which I regularly scan for news items for the IALC Online Newsletter. My apologies to those who receive the message more than once. --K. Waser] Readers of this list who are interested in environmentally sensitive, socio-ecoonomically sustainable development of arid and semi-arid lands are invited to visit the evolving International Arid Lands Consortium World Wide Web site, now in its second year of operation. URL: http://ag.arizona.edu/OALS/IALC/Home.html Contents include: --New Schedule: IALC Online Newsletter--Now published monthly, with announcements of jobs, conferences, workshops, RFPs, publications and news of interest to arid lands researchers, natural resources managers and policy makers. --New Feature: Newsletter Updates--Late-breaking items with deadlines too near to wait for the next regular newsletter are added to the current issue immediately, with links both from the Newsletter main menu and from the current issue's Contents page. Check back often! --Hot Links: Frequently updated lists of arid lands Web sites and of Web search tools. --Directory of Arid Lands Researchers at IALC Member Institutions: Contact information and summaries of current research projects. --Information on the IALC and its member institutions: Includes abstracts of all research projects funded by the IALC. Web site maintained by: John Bancroft (jbanc@ag.arizona.edu) Katherine Waser (kwaser@ag.arizona.edu) <------------------------------>
Date: Wed, 15 Nov 1995 01:33:46 -0500 From: GrapeGrowr@aol.com Subject: Re: Intl. Arid Lands Consortium Home Page What kind of crock of shit is this. I've been farming in the desert, my family before me, for longer than you've been alive. What sustainable. Get a real job. <------------------------------>
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From root@crcnis1.unl.edu Thu Nov 16 15:27 EST 1995
Date: Thu, 16 Nov 1995 09:17:45 -0600
Message-Id: .<.199511161517.AA28577@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 350

Contents:
Salt and Icebergs (Patrick.Joyce@property.camcnty.gov.uk)
 Re: Intl. Arid Lands Consortium Home Page (Louis Baumhardt .<.r-baumhardt@tamu.edu.>.)
Re: SDI v. LEPA (TxGator@aol.com)
Re: Intl. Arid Lands Consortium Home Page (ScottGood@aol.com)

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Date: Wed, 15 Nov 1995 18:06:09 +0000 From: Patrick.Joyce@property.camcnty.gov.uk Subject: Salt and Icebergs Can anyone with experience of iceberg lettuce help? What is the safe maximum EC value for irrigation water at planting out of module raised iceberg lettuce? Background: Soils are reclaimed silty loams with reasonable drainage, ECex of <1ds/m in the top metre, humid temperate climate with annual rainfall of about 600mm. (summer maximum). Most crops are rainfed but problems occur at planting (when it can be very dry), where water use is planned to assist establishment. Problem: The water available for irrigation has EC of 2-3.5 dS/m depending on season. Will this damage the plants more than an unirrigated crop? Most people I've spoken to disagree! Grateful for any help Patrick Joyce -------------------------------------------- Mail: Patrick.Joyce@property.camcnty.gov.uk Snail: 16,Romsey Road,CAMBRIDGE UK CB3 OAP Fax: 01223 317169 -------------------------------------------- <------------------------------>
Date: Wed, 15 Nov 1995 14:48:40 -0600 From: Louis Baumhardt .<.r-baumhardt@tamu.edu.>. Subject: Re: Intl. Arid Lands Consortium Home Page >>> .<.GrapeGrowr@aol.com> - 11/15/95 12:27 AM >>.>. What kind of crock of shit is this. I've been farming in the desert, my family before me, for longer than you've been alive. What sustainable. Get a real job. >>>>>>>>>>> Well, you have been farming in the desert a little too long. I believe the radiation has affected your mental ability. This is a good site. Certainly undeserving of your response. http://ag.arizona.edu/OALS/IALC/Home.html --Buddy <------------------------------>
Date: Wed, 15 Nov 1995 23:30:18 -0500 From: TxGator@aol.com Subject: Re: SDI v. LEPA As district manager of Netafim Irrigation, I am pleased to announce that we recently completed a field trial of cotton on SDI and LEPA in the South Plains of Texas. A report should be completed this year by Joe Henggler of Texas A&M. In general, the systems were both ~110 acres and had the same amount of water available. The results are very much in favor of using Netafim SDI. In fact, the grower has already ordered more acres of SDI! In the meantime, contact our agronomist, Dr. Jerome Pier by e-mail at JPier@qnis.net for general information. Jim <------------------------------>
Date: Wed, 15 Nov 1995 23:42:19 -0500 From: ScottGood@aol.com Subject: Re: Intl. Arid Lands Consortium Home Page Attention GrapeGrowr@aol.com: Apparently someone has been able to gain access to your AOL account and password without your knowledge. I have enclosed a copy of a message (see below) that was delivered to the trickle list located at trickle-l@unl.edu. Durring your next session online at AOL.COM, you need to CHANGE YOUR PASSWORD so that you will not risk of being charged for services that you did not recieve and more importantly, the possible embarrassment of someone defiling your good reputation by posting messages that could be attributed to YOU. Thank you for your attention to this matter. Scott M. Good Scottgood@aol.com In a message dated 95-11-15 01:34:58 EST, GrapeGrowr@aol.com wrote: >Subj: Re: Intl. Arid Lands Consortium Home Page >Date: 95-11-15 01:34:58 EST >From: GrapeGrowr@aol.com >Sender: trickle-l@unl.edu >Reply-to: trickle-l@unl.edu >To: trickle-l@unl.edu (Multiple recipients of list) > >What kind of crock of shit is this. I've been farming in the desert, my >family before me, for longer than you've been alive. What sustainable. Get >a real job. <------------------------------>
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From root@crcnis1.unl.edu Fri Nov 17 18:26 EST 1995
Date: Fri, 17 Nov 1995 09:18:02 -0600
Message-Id: .<.199511171518.AA19545@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 351

Contents:
Re: Salt and Icebergs (OSTER@pop.ucr.edu (James D. Oster))

<---------------------------------------------------------------------->

Date: Thu, 16 Nov 1995 13:25:03 -0600 From: OSTER@pop.ucr.edu (James D. Oster) Subject: Re: Salt and Icebergs Lettuce is regularly irrigated with 1.3 dS/m water from the Colorado River. Sprinklers are usually used for the germination irrigation. The germination stage itself is usually the least sensitive stage of crop development and the yound seedling stage the most sensitive. There is a possiblity than that 2 - 3 dS/m waters would germinate the crop, but that the seedlings would grow slowly. The threshold for lettuce is 1.3 dS/m in the average saturation extract (about 2.6 dS/m in the soil solution) of the root zone. The yield reduction per unit increase in saturation extract salinity (in dS/m) is 13%. What would be the estimate of the average rootzone salinity for a 2.5 dS/m water? The answer depends on the leaching fraction. Assuming a leaching fraction of 30 % the average rootzone salinity at the saturation extract water content would be about 2.5 dS/m. The expect yield reduction would be (2.5-1.3) x 13 % or about 16 %. References: 1. Table 3, page 18 of Ayers and Westcot FAO pub. 29 Rev 1 'Water Quality for Agriculture' ISBN 92-5-102263-1. 1985; 2. Table 30, page 61 of Rhoades, Kandiah, and Mashali, FAO pub 48, 'The Use of Saline Waters for Crop Production' ISBN 92-5-103237-8. 1992.. > > What is the safe maximum EC value for irrigation water at planting out > of module raised iceberg lettuce? > > Background: Soils are reclaimed silty loams with reasonable drainage, > ECex of <1ds/m in the top metre, humid temperate climate with annual > rainfall of about 600mm. (summer maximum). Most crops are rainfed but > problems occur at planting (when it can be very dry), where water use > is planned to assist establishment. > > Problem: The water available for irrigation has EC of 2-3.5 dS/m > depending on season. Will this damage the plants more than an > unirrigated crop? Most people I've spoken to disagree! > > Grateful for any help > > Patrick Joyce > > -------------------------------------------- > Mail: Patrick.Joyce@property.camcnty.gov.uk > Snail: 16,Romsey Road,CAMBRIDGE UK CB3 OAP > Fax: 01223 317169 > -------------------------------------------- > Jim Oster Extension Soil and Water Specialist Dept. of Soil & Env. Sciences University of California Riverside CA 92521 Phone (909)787-5100 FAX (909) 787-5522 Admin. Assistant: Gwyn Dixon--(909) 787-5522 (Phone and FAX) <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Sat Nov 18 15:26 EST 1995
Date: Sat, 18 Nov 1995 09:18:18 -0600
Message-Id: .<.199511181518.AA04958@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 352

Contents:
Re: Intl. Arid Lands Consortium Home Page (GrapeGrowr@aol.com)
Unsubscribe (wunn@teleport.com (Ric and Nancy Wunn))

<---------------------------------------------------------------------->

Date: Fri, 17 Nov 1995 19:18:10 -0500 From: GrapeGrowr@aol.com Subject: Re: Intl. Arid Lands Consortium Home Page Invent a way to farm in the desert without water and no soil, then you will be worth your salary. We've been on drip for over 10 years, our farms have been in production for over 80 years. Is that sustainable enough for you?? I'm tired of jerks like you and the other idiot making it difficult for real farmers and business people to make a living. Get a non government job and wake up!!!!! I don't want my damn taxes supporting anything that you blood suckers do that make my life more difficult. I appreciate the knowledge that can be found here regarding irrigation problems, but this consortium sounds commie to me. Where's your damn money coming from? Me? <------------------------------>
Date: Fri, 17 Nov 1995 19:02:29 -0800 From: wunn@teleport.com (Ric and Nancy Wunn) Subject: Unsubscribe unsubscribe trickle-l <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Sun Nov 19 15:27 EST 1995
Date: Sun, 19 Nov 1995 09:18:38 -0600
Message-Id: .<.199511191518.AA11719@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 353

Contents:
Re: Intl. Arid Lands Consortium Home Page (GrapeGrowr@aol.com)

<---------------------------------------------------------------------->

Date: Sat, 18 Nov 1995 21:06:50 -0500 From: GrapeGrowr@aol.com Subject: Re: Intl. Arid Lands Consortium Home Page No Scott, I said that. You know I did. Probably what will come out of this consortium is the recomendation that we no longer farm in deserts because the lizards were here first. Are you one of Those??? Let free enterprise figure a way to farm economically in the deserts, like we have in the Coachella Valley. Farms are still here, water is still here soils are still here and the lizards too! Let the scientists HELP us accomplish that. Not make it more difficult than it already is. <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Mon Nov 20 15:28 EST 1995
Date: Mon, 20 Nov 1995 09:20:02 -0600
Message-Id: .<.199511201520.AA21561@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 354

Contents:
Re: Intl. Arid Lands Consorti... (Hal4d@aol.com)
Re: Intl. Arid Lands Consorti... (bartf@mail.cts.com (Bart Fisher))
Re: Intl. Arid Lands Consorti... (flowers@Rt66.com (Wilderness Flowers))
Re: Intl. Arid Lands Consorti... (Hal4d@aol.com)
Intl. Arid Lands Consorti Flame war (MEAD2513@aol.com)
Re: Intl. Arid Lands Consorti Flame war (Tim1Utah@aol.com)
The Big Picture (Tim1Utah@aol.com)

<---------------------------------------------------------------------->

Date: Sun, 19 Nov 1995 12:33:16 -0500 From: Hal4d@aol.com Subject: Re: Intl. Arid Lands Consorti... On Saturday November 18, 1995 Mr. GrapeGrwr wrote: > Let free enterprise figure a way to farm economically in the deserts< My response to this is "Economically YES, Irresponsibly NO" We all know what the results are when doctrines of free enterprise become policies of destruction of the environment. <------------------------------>
Date: Sun, 19 Nov 1995 12:15:03 -0700 From: bartf@mail.cts.com (Bart Fisher) Subject: Re: Intl. Arid Lands Consorti... >On Saturday November 18, 1995 Mr. Hal4d@aol.com wrote: > >We all know what the results are when doctrines of free enterprise become >policies of destruction of the environment. Let's please avoid turning this forum from one of an educational bent to one bent on promoting wacko social policies, one way or the other. In particular, please avoid uninformed statements such as the above which appear to criticize domestic ag producers who are the ultimate protectors of the land. <------------------------------>
Date: Sun, 19 Nov 95 13:46:29 MST From: flowers@Rt66.com (Wilderness Flowers) Subject: Re: Intl. Arid Lands Consorti... >>On Saturday November 18, 1995 Mr. Hal4d@aol.com wrote: >> >>We all know what the results are when doctrines of free enterprise become >>policies of destruction of the environment. > >Let's please avoid turning this forum from one of an educational bent to >one bent on promoting wacko social policies, one way or the other. In >particular, please avoid uninformed statements such as the above which >appear to criticize domestic ag producers who are the ultimate protectors >of the land. > > > >thanks for the insight to see that the people on the land are the ones who are ultimatly responsible for its protection.It seem to me that it is the responsibility of the academic world to come up with methodology to allow the farmers to farm while protecting the land for future use Martin Martin Connaughton Wilderness Flowers Rt.19 Box 111D Santa Fe, NM 87505 "It could only be fresher if you grew it" <------------------------------>
Date: Sun, 19 Nov 1995 17:14:47 -0500 From: Hal4d@aol.com Subject: Re: Intl. Arid Lands Consorti... >>On Saturday November 18, 1995 Mr. Hal4d@aol.com wrote: >> >>We all know what the results are when doctrines of free enterprise become >>policies of destruction of the environment. On Sunday November 19, 1995 Mr. bartf@mail.cts.com (Bart Fisher) wrote: > please avoid uninformed statements such as the above which >appear to criticize domestic ag producers who are the ultimate protectors >of the land. If you READ the, so-called, UNINFORMED statement again you will notice that I was not critizicing the ag. producers but their lobbyists and lawmakers. Elena I. Halford Hal4d@AOL.com <------------------------------>
Date: Sun, 19 Nov 1995 21:54:12 -0500 From: MEAD2513@aol.com Subject: Intl. Arid Lands Consorti Flame war Let's just drop this little flame war and move on. It would be in the best interest for all to discuss details of drip irrigation and the problems and challenges therein. We should be appreciative that we have such a diverse crowd of individuals out there on our list. Onward and upward....I don't like slapping any more hands :) Richard Mead Trickle-L owner/manager <------------------------------>
Date: Sun, 19 Nov 1995 22:37:37 -0500 From: Tim1Utah@aol.com Subject: Re: Intl. Arid Lands Consorti Flame war Good call, I was getting tired of that, and the leaf mulch thing too <------------------------------>
Date: Sun, 19 Nov 1995 22:43:46 -0500 From: Tim1Utah@aol.com Subject: The Big Picture I will be out at the conserve 96 in Orlando, anyone else? I have to speak on a panel disscusion(sp?). Also, I will be presenting a paper at the North American Water and Environment Congress in June (Anaheim) It would be nice to meet some of you. Tim Wilson Irrigation Association, Education Director P.S. Has anyone online heard about the National Irrigation Initiative? I am very excited about it and would love to talk more about it. <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Tue Nov 21 15:33 EST 1995
Date: Tue, 21 Nov 1995 09:24:19 -0600
Message-Id: .<.199511211524.AA12362@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 355

Contents:
rev (MEAD2513@aol.com)
rev trickle-l fiasco (MEAD2513@aol.com)
Re: The Big Picture (pdspyke@gate.net)
Re: The Big Picture (GrapeGrowr@aol.com)

<---------------------------------------------------------------------->

Date: Mon, 20 Nov 1995 12:15:31 -0500 From: MEAD2513@aol.com Subject: rev rev trickle-l <------------------------------>
Date: Mon, 20 Nov 1995 14:21:10 -0500 From: MEAD2513@aol.com Subject: rev trickle-l fiasco For those of you who are wondering why I posted "rev trickle-l" to all 330 of you............I SCREWED UP !!! My apologies, BUT, this does give me the opportunity to announce that updated Trickle-L archives are now available by sending the following command to >listserv@unl.edu< GET TRICKLE-L LOG95XX where XX could be 09 for September or 10 for October etc. DO NOT send the "get trickle-l log" command to >trickle-l@unl.edu< as I did. It is a humiliating experience...one I have felt way too often by trying to rush things along. If you want to get a list of all the individuals who are subscribed to Trickle-L, send: REV TRICKLE-L to the same listserver address >listserv@unl.edu<. This was my original intention and looked what happened. Embarrassingly, Richard Mead Trickle-L owner/manager p.s. Be prepared for large unedited files when you do send the >get trickle-l logxx< command. and.........If you have Web access, very recent archives can be obtained from our homepage at: HTTP://asset.arsusda.gov/wmrl/wmrl.html <------------------------------>
Date: Mon, 20 Nov 1995 22:09:54 -0500 From: pdspyke@gate.net Subject: Re: The Big Picture >I will be out at the conserve 96 in Orlando, anyone else? I have to speak on >a panel disscusion(sp?). Also, I will be presenting a paper at the North >American Water and Environment Congress in June (Anaheim) It would be nice >to meet some of you. > > > > > > Tim >Wilson > Irrigation >Association, Education Director > >P.S. Has anyone online heard about the National Irrigation Initiative? I am >very excited about it and would love to talk more about it. Two questions: What are the dates of Conserve 96, and what is the National Irrigation Initiative. If you would like to discuss it, I'm sure we all would like to hear more about both. Thanks. Pete Spyke > > <------------------------------>
Date: Tue, 21 Nov 1995 00:29:40 -0500 From: GrapeGrowr@aol.com Subject: Re: The Big Picture You don't want to meet me <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Wed Nov 22 15:35 EST 1995
Date: Wed, 22 Nov 1995 09:27:49 -0600
Message-Id: .<.199511221527.AA29935@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 356

Contents:
Re: The Big Picture (Tim1Utah@aol.com)
RE: The Big Picture (Dale Hardin .<.dhwrc@gate.net.>.)
Re: The Big Picture (geoflowr@halcyon.com (Rodney Ruskin))

<---------------------------------------------------------------------->

Date: Tue, 21 Nov 1995 20:13:48 -0500 From: Tim1Utah@aol.com Subject: Re: The Big Picture Why not? <------------------------------>
Date: Tue, 21 Nov 1995 20:16:30 -0500 From: Dale Hardin .<.dhwrc@gate.net.>. Subject: RE: The Big Picture ------ =_NextPart_000_01BAB84E.9A4234E0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Pete, please send me your mailing address. Peter Buss of Sentek will be = in Florida the second week of December making presentations on the = EnviroSCAN system. Would like to send you schedule. Dale ---------- From: pdspyke@gate.net[SMTP:pdspyke@gate.net] Sent: Monday, November 20, 1995 10:03 PM To: Multiple recipients of list Subject: Re: The Big Picture >I will be out at the conserve 96 in Orlando, anyone else? I have to = speak on >a panel disscusion(sp?). Also, I will be presenting a paper at the = North >American Water and Environment Congress in June (Anaheim) It would be = nice >to meet some of you. >=20 > > > > > = Tim >Wilson > Irrigation >Association, Education Director > >P.S. Has anyone online heard about the National Irrigation Initiative? = I am >very excited about it and would love to talk more about it. Two questions: What are the dates of Conserve 96, and what is the = National Irrigation Initiative. If you would like to discuss it, I'm sure we all = would like to hear more about both. Thanks. Pete Spyke > > ------ =_NextPart_000_01BAB84E.9A4234E0 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IgQBAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABABAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEEAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAAB0cmlja2xlLWxAdW5sLmVkdQBTTVRQAHRyaWNrbGUtbEB1bmwuZWR1AAAAAB4AAjAB AAAABQAAAFNNVFAAAAAAHgADMAEAAAASAAAAdHJpY2tsZS1sQHVubC5lZHUAAAADABUMAQAAAAMA /g8GAAAAHgABMAEAAAAUAAAAJ3RyaWNrbGUtbEB1bmwuZWR1JwACAQswAQAAABcAAABTTVRQOlRS SUNLTEUtTEBVTkwuRURVAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAAAAAAA6QuAQiABwAY AAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABABQAAABSRTogVGhlIEJpZyBQaWN0dXJl AEAGAQWAAwAOAAAAywcLABUAFAAQAB4AAgA2AQEggAMADgAAAMsHCwAVABQADgA6AAIAUAEBCYAB ACEAAAA1MDc5NTdBQTQwMjRDRjExQTIxMzQ0NDU1MzU0MDAwMACxBgEDkAYAQAUAABAAAAALACMA AAAAAAMAJgAAAAAACwApAAAAAAADADYAAAAAAEAAOQBgq8EneLi6AR4AcAABAAAAFAAAAFJFOiBU aGUgQmlnIFBpY3R1cmUAAgFxAAEAAAAWAAAAAbq4eCfBqld5USRAEc+iE0RFU1QAAAAAAwAGEKO8 vi4DAAcQKgMAAB4ACBABAAAAZQAAAFBFVEUsUExFQVNFU0VORE1FWU9VUk1BSUxJTkdBRERSRVNT UEVURVJCVVNTT0ZTRU5URUtXSUxMQkVJTkZMT1JJREFUSEVTRUNPTkRXRUVLT0ZERUNFTUJFUk1B S0lOR1BSRVMAAAAAAgEJEAEAAAAABAAA/AMAAKUHAABMWkZ1PAHaqP8ACgEPAhUCqAXrAoMAUALy CQIAY2gKwHNldDI3BgAGwwKDMgPFAgBwckJxEeJzdGVtAoMzdwLkBxMCgH0KgAjPCdk78RYPMjU1 AoAKgQ2xC2DgbmcxMDMUUAsKFFElC/JjAEAgUBHAZSxSIAtQZWERsCARsG7kZCAHgCB5CGEcAAtw gmwLgGcgYWRkFhCZBBAuIBrjBcBCdQQRjG9mBlECMGVrIAPwmmwDIGIboAuAIEYVocBpZGEgdGgb ogWg3RvhdwngHuAeYUQFkBPgex9QHHJrHNITUAeQHqFhPHRpAiAeQQOgIDJFboR2aQNgU0NBThuw axOzHYFXCGBsG/AcwGv5G6B0bxu0HEEbsBFwCYDVJRBlHYFEB0BlCoUKixEcwDE4MALRaS0xPDQ0 DfAM0CkzC1kxNtcKoANgE9BjBUAtK1cKh9cqCwwwKtZGA2E6LF4q1kMMghtAZHNweSVwQBZnItAm 0G4RwFtTTehUUDowHl0r/y0NHpJLLj8vS00goWF5GzBOHG92IZQB0BswMTk5sjU34DA6GUAa4E0y j/ktDVRvNM813CUQIuAbUfogFhBjBSAIkAIwHkMcwMcTwDjPM551YmorETrvKS9LUmVA4FQgQUJp eRzwUGkrIAhwJ08oVDPONinXGkUq1j5JHvcIYF8FQCLQICMgkRGwcjdAICQ5Nh9yT3IY8WRvjxsw AHAcQDDgIGVsEbC8PyBHABGASLElonAbcPUhEW4KhT4gEAqwMOADIFpkBAFjHiAi8SgwMD/6KR2B QUpQSaFHCCJlHNO/TFFLUAXAR+U3IAAgaEvG1kEHgAUQYwORVzChT/HbG+EjtG4HgAIwIAhQGRAT HUIfckp1ShEgKEFsbmEgQAdwKUqQBUB3/yUDH1EDACGAS8YloQeAEcDfG7ADcEeBHnAcQS5Lxie2 /j5YX1ltHZBa71v/XQ9eH/deYgdhS8ZXAxBOAEu3Xm/nYg9jH2PISXIFEDCRIvG7UNcEEG89cCLT GzBFJqB/UaAi4iFQI+ArEQWwWV5Q9C5THYBIG4BJxgIgHMH/G6AgQAsRHQAG4EexUEMi0/8HQGTJ SpADACLgItE3QEqCpmFflzdAcnlKMHg9cP8T0GqWbLBSM1U0FaBK5AGQfmwe4ARgFhBu11e2CoVU +VUwIHEKUBPAIvJA4CTg/xGAR8FxASAyIAAT0B5DU0H/SIZJsiDBc7IEAGsLCoVr7/ts8h2BSVdj b6YlZUzBTQHlU7F0TiEnbRuwQ8Eg0f8dAB8hCoV5uAqFJaFqUnDazwbgIDBxvhGAbmsdcEP8/xry BgAwQllfRAtEb0V/KuULCoUVMQCHQAMAEBAAAAAAAwAREAIAAABAAAcwQBd28He4ugFAAAgwQBd2 8He4ugEeAD0AAQAAAAUAAABSRTogAAAAAL+Y ------ =_NextPart_000_01BAB84E.9A4234E0-- <------------------------------>
Date: Tue, 21 Nov 1995 17:43:44 -0800 From: geoflowr@halcyon.com (Rodney Ruskin) Subject: Re: The Big Picture At 9:36 PM 11/19/95 -0600, Tim1Utah@aol.com wrote: >I will be out at the conserve 96 in Orlando, anyone else? I have to speak on >a panel disscusion(sp?). Also, I will be presenting a paper at the North >American Water and Environment Congress in June (Anaheim) It would be nice >to meet some of you. > > > > > > Tim >Wilson > Irrigation >Association, Education Director > >P.S. Has anyone online heard about the National Irrigation Initiative? I am >very excited about it and would love to talk more about it. Tim, Please tell us more both about the NII and the NAWEC in June. I will not be at Conserve '96 but Karen Ferguson, my nominal 2IC (but really my boss) will. I will aks her to look for you. Rodney. <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Thu Nov 23 15:36 EST 1995
Date: Thu, 23 Nov 1995 09:28:13 -0600
Message-Id: .<.199511231528.AA13300@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 357

Contents:
Re: The Big Picture (Tim1Utah@aol.com)
Re: The Big Picture (Tim1Utah@aol.com)
Re: The Big Picture (GrapeGrowr@aol.com)
Re: The Big Picture (GrapeGrowr@aol.com)
Re: The Big Picture (GrapeGrowr@aol.com)

<---------------------------------------------------------------------->

Date: Thu, 23 Nov 1995 00:17:29 -0500 From: Tim1Utah@aol.com Subject: Re: The Big Picture The dates of Conserve 96 are jan, 4th throught the 7th. It is sponsored by ASCE, AWRA, AWWA. You can call 212-705-7071 for more info. The National Land and Water Irrigation Initiative is an effot to unite private industry and government in an effort to deal with water and soil conservation issues on a national level. It already has some impressive representation, BOR, EPA, ARS, The Irrigation Assoc., CH2M Hill, and quite a few others. For an info packet call Terry Lynott at 303-988-0520. <------------------------------>
Date: Thu, 23 Nov 1995 00:25:14 -0500 From: Tim1Utah@aol.com Subject: Re: The Big Picture The NII is an effert to unite the efforts of both government and private industry to deal effectively with water and soil conservation, It is organized nationally but it's goal is to deal with issues in conjuction with local groups on a waterhed basis. For an info packet call Terry Lynott at 303-988-0520. Thanks for your interest! A far as the NAWEC, ASCE is a major player in that. I can't tell you a lot anout it myself unfortunatly, I'm sure that you have contacts with ASCE that could give you more info. It will be in Anaheim June 22nd to the 28th. Thanks for your interest! Tim Wilson <------------------------------>
Date: Thu, 23 Nov 1995 04:33:30 -0500 From: GrapeGrowr@aol.com Subject: Re: The Big Picture I think the organization is a sham. Please stop sending me mail about it, I wouldn't go if you paid me. If you want to reply to someone, click "reply" instead of "reply to all". Don't you know that the "big picture you keep talking about is just a government effort to impact our water rights! Wake up. <------------------------------>
Date: Thu, 23 Nov 1995 04:36:21 -0500 From: GrapeGrowr@aol.com Subject: Re: The Big Picture That's alot of initials. Wow. How about this one. DOA (dead on arrival), thats what anything should be that involves the EPA and farming. Obviously, you are not a farmer. If it wasn't for us farmers, you'd be out of a job. Please stop sending this trash to us. <------------------------------>
Date: Thu, 23 Nov 1995 04:36:43 -0500 From: GrapeGrowr@aol.com Subject: Re: The Big Picture because I said so <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Fri Nov 24 15:36 EST 1995
Date: Fri, 24 Nov 1995 09:28:41 -0600
Message-Id: .<.199511241528.AA22253@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 358

Contents:
R. Mead's homepage idea (MEAD2513@aol.com)
Re: The Big Picture (Tim1Utah@aol.com)
Re: The Big Picture (Tim1Utah@aol.com)
Re: R. Mead's homepage idea (geoff@netcom.com (Geoffrey Leach))
Neutron probe calibration equations (Trevor Finch .<.rsne@mpx.com.au.>.)
RE: R. Mead's homepage idea (Goldberg .<.goldberg@eden.com.>.)
Re: The Big Picture (GrapeGrowr@aol.com)
Re: R. Mead's homepage idea (Dripigate@aol.com)

<---------------------------------------------------------------------->

Date: Thu, 23 Nov 1995 12:13:48 -0500 From: MEAD2513@aol.com Subject: R. Mead's homepage idea Coming back from a drip irrigation conference in Phoenix recently, I came away thinking how the drip irrigation industry is really taking off. Since this technology is really booming, current and updated information is imperative. Since more and more individuals are using the Internet, specifically the World Wide Web, information will be easier to obtain via this medium. I plan to set up a homepage from a new service am subscribing to (Cybergate). The homepage will be linked from the Water Management Research Lab's homepage (and possibly others related to drip).The homepage will feature the do's and don'ts of drip irrigation, what has a label, what doesn't. Types of fertilizer and which fertilizers that can be mixed together and those that can't will be just some bits of information I plan to place on the homepage. I need input from everyone on Trickle-L whether they be farmers, researchers, industry people etc. What would you want to see on my homepage of essential drip irrigation information?? Can you provide to me information related to drip irrigation that your company specializes in. It is possible to link to your company/office from my homepage, but that's a future idea. I'm not looking at this as a free advertising strategy for the drip industry, but as objective information everyone can use. Being in research myself, this should enhance the unbiased nature of the information. Please respond to me personally or to the group as a whole. Is this a bad idea or should it include even more than I have covered? Looking forward to moving drip irrigation technology up the digital food chain! Richard Mead Trickle-L owner/manager WMRL-ARS-USDA <------------------------------>
Date: Thu, 23 Nov 1995 12:41:13 -0500 From: Tim1Utah@aol.com Subject: Re: The Big Picture I DO click on "reply", not "reply to all". If you don't want to hear about it, stop "replying" to me. The Irrigation Association is deeply involved in these types of things to avoid radical measures like you are discussing. We are there to represnt the Industry's concerns. Unlike people who just complain, we are trying to do something. Why all the rudeness? <------------------------------>
Date: Thu, 23 Nov 1995 12:51:21 -0500 From: Tim1Utah@aol.com Subject: Re: The Big Picture There ARE farmers on the initiative. The Irrigation Association is there to help balance out the opinions of other groups. We believe in a farmer's right to water and to irrigate. Thats why we are represented on this Initiative. You are being rude to the wrong group. send your comments to the EPA directly. We are on your side. (We being the Irrigation Association). However, every one deserves a chance to be heard and the best way to work out conflicting views is to sit down with people with other concerns and work things out so that nobody is stepped on. Be a positve influence for your fellow farmers. <------------------------------>
Date: Thu, 23 Nov 1995 10:37:34 -0800 (PST) From: geoff@netcom.com (Geoffrey Leach) Subject: Re: R. Mead's homepage idea A great idea. Do it! <------------------------------>
Date: Fri, 24 Nov 95 09:19:33 +1100 (EST) From: Trevor Finch .<.rsne@mpx.com.au.>. Subject: Neutron probe calibration equations I am compiling a 'database' of soil calibration equations for neutron gauges from throughout the world. In order that equations can be used with other gauges, we find that the best 'standard' is a count in a 200l water drum, rather than in the wax shield. With the water count we can compare and use equations from any neutron gauge - Troxler, CPN, any source. The equations should be of the form... VSW = 0.68 * (COUNT/WD) + 0.01 Where WD is the count in a drum of water (say 200 l), same tube type. The recent paper by Evett S.R. and Steiner J.L. in Soil Science Society Journal of America Journal, July-Aug 1995 that compared capacitance with neutron probes was excellent, but they did not publish the water drum count for their neutron probe, so I cannot use their equations. Some examples are: Ham, G J, "Water Consumption by Sugar Cane under Commercial Growing Conditions", Fifth Afro-Asian Regional Conference, Proceedings, 'Planning and Management of water for Agriculture in the Tropics', Townsville, Australia, August 1985 VSW = 0.7447 * CNT/WD + 0.0133 (sandy clay loam) VSW = 0.651 * CNT/WD + 0.9848 (loamy sand) Poulton, D C, Dale, M O, Nagarajah, S 'Field Calibration of a Neutron Moisture Meter for the estimation of Soil Water Content in Mallee Soil Types of varying Texture', Conference on Agriculture Engineering, Adelaide, Australia, August 1986 VSW = 0.737 * CNT/WD + 0.108 (all Mallee soils 0.0-0.2m) VSW = 0.740 * CNT/WD + 0.125 (all Mallee soils 0.3-1.2m) Some equations that I have seen used commercially based on work by DPI SA, Loxton, Australia are VSW = 0.72 * CNT/WD - 2.4 SoilType 1 VSW = 0.62 * CNT/WD - 3.5 SoilType 2 VSW = 1.10 * CNT/WD - 4.5 SoilType 3 VSW = 0.94 * CNT/WD - 15.7 SoilType 4 Chanasyk, DS and McKenzie, R H, 'Field Calibration of a Neutron Probe' Can J Soil Sci 66: 173-176 (Feb 1986) Recommends use of a single equation for all Canadian soils, as essentially independant of 'texture' VSW = 0.4343 * CR + 0.0019 fine textured soils VSW = 0.4373 * CR + 0.0007 coarse textured soils However, the count ratio is in terms of the 'in-shield' (presumeably wax) count, so the actual value cannot be used, just the general conclusion. Is a water drum count available for all that work done by Larry Schwankle ? Does anybody have any data or references to data, either from gravimetric soil sampling or ideally from the best test of all - water in a rain gauge compared with gain in the soil profile ? ---- Trevor Finch Research Services New England 23 Vincent St, Balmain NSW 2041 Australia tel +61 (2) 810 3563 fax +62 (2) 818 3617 <------------------------------>
Date: Thu, 23 Nov 1995 16:38:13 -0600 From: Goldberg .<.goldberg@eden.com.>. Subject: RE: R. Mead's homepage idea ------ =_NextPart_000_01BAB9C2.7C111C00 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Richard: I think it's a fine idea. I'd like to see info on using drip = technology in wastewater reuse, an idea which is also catching on. The = civil engineers who dominate the wastewater industry don't really know = what drip irrigation is, let alone what might be considered permitting = criteria and good management practices for drip systems. I would = certainly be willing to contribute from my own company's experience. Rick Goldberg Drip-Tech Wastewater Systems ---------- From: MEAD2513@aol.com[SMTP:MEAD2513@aol.com] Sent: Thursday, November 23, 1995 11:09 AM To: Multiple recipients of list Subject: R. Mead's homepage idea Coming back from a drip irrigation conference in Phoenix recently, I = came away thinking how the drip irrigation industry is really taking off. = Since this technology is really booming, current and updated information is imperative. Since more and more individuals are using the Internet, specifically the World Wide Web, information will be easier to obtain = via this medium. I plan to set up a homepage from a new service am = subscribing to (Cybergate). The homepage will be linked from the Water Management = Research Lab's homepage (and possibly others related to drip).The homepage will feature the do's and don'ts of drip irrigation, what has a label, what doesn't. Types of fertilizer and which fertilizers that can be mixed = together and those that can't will be just some bits of information I plan to = place on the homepage. I need input from everyone on Trickle-L whether they be farmers, researchers, industry people etc. What would you want to see on = my homepage of essential drip irrigation information?? Can you provide to = me information related to drip irrigation that your company specializes in. = It is possible to link to your company/office from my homepage, but that's = a future idea. I'm not looking at this as a free advertising strategy for = the drip industry, but as objective information everyone can use. Being in research myself, this should enhance the unbiased nature of the = information. Please respond to me personally or to the group as a whole. Is this a = bad idea or should it include even more than I have covered? Looking forward to moving drip irrigation technology up the digital food chain! Richard Mead Trickle-L owner/manager WMRL-ARS-USDA ------ =_NextPart_000_01BAB9C2.7C111C00 Content-Type: application/ms-tnef Content-Transfer-Encoding: base64 eJ8+IgYWAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAENgAQAAgAAAAIAAgABBJAG ABABAAABAAAADAAAAAMAADADAAAACwAPDgAAAAACAf8PAQAAAEEAAAAAAAAAgSsfpL6jEBmdbgDd AQ9UAgAAAAB0cmlja2xlLWxAdW5sLmVkdQBTTVRQAHRyaWNrbGUtbEB1bmwuZWR1AAAAAB4AAjAB AAAABQAAAFNNVFAAAAAAHgADMAEAAAASAAAAdHJpY2tsZS1sQHVubC5lZHUAAAADABUMAQAAAAMA /g8GAAAAHgABMAEAAAAUAAAAJ3RyaWNrbGUtbEB1bmwuZWR1JwACAQswAQAAABcAAABTTVRQOlRS SUNLTEUtTEBVTkwuRURVAAADAAA5AAAAAAsAQDoBAAAAAgH2DwEAAAAEAAAAAAAAA6QuAQiABwAY AAAASVBNLk1pY3Jvc29mdCBNYWlsLk5vdGUAMQgBBIABABwAAABSRTogUi4gTWVhZCdzIGhvbWVw YWdlIGlkZWEAuwgBBYADAA4AAADLBwsAFwAQACYADQAEADsBASCAAwAOAAAAywcLABcAEAAiABQA BAA+AQEJgAEAIQAAADA0RkMyODZDQjQyNUNGMTFBRjRENDQ0NTUzNTQwMDAwAPkGAQOQBgCACAAA EgAAAAsAIwAAAAAAAwAmAAAAAAALACkAAAAAAAMANgAAAAAAQAA5AIA4aV/0uboBHgBwAAEAAAAc AAAAUkU6IFIuIE1lYWQncyBob21lcGFnZSBpZGVhAAIBcQABAAAAFgAAAAG6ufRfaWwo/AUltBHP r01ERVNUAAAAAB4AHgwBAAAABQAAAFNNVFAAAAAAHgAfDAEAAAASAAAAZ29sZGJlcmdAZWRlbi5j b20AAAADAAYQRAfV/wMABxBkBwAAHgAIEAEAAABlAAAAUklDSEFSRDpJVEhJTktJVFNBRklORUlE RUFJRExJS0VUT1NFRUlORk9PTlVTSU5HRFJJUFRFQ0hOT0xPR1lJTldBU1RFV0FURVJSRVVTRSxB TklERUFXSElDSElTQUxTT0NBVAAAAAACAQkQAQAAAAIHAAD+BgAAagwAAExaRnWqN9BU/wAKAQ8C FQKoBesCgwBQAvIJAgBjaArAc2V0MjcGAAbDAoMyA8UCAHByQnER4nN0ZW0CgzN3AuQHEwKAfQqA CM8J2TvxFg8yNTUCgAqBDbELYOBuZzEwMxRQCwoUUS0L8mMAQAfwaRFyZDpAICBJIHRoC4BrECBp dCcEIGEgZk0LgGUcAA2wYS4bcScgZCBsaWscsHRvViARsByxbgIQIAIgIOZ1AJAZECBkBREboAWQ JGhuFZFneR4xIHd+YRPBIFAT0AXAFhAewGX+LBxQA6Ac0iBAG8ARcBwA6RxBbHMd4GMgsBFwHuIT AiAdEVRoHLBjaXb7AxEJ8GcckQSQBCAh8B3g/mQDcAuAILEboRywIFkLgDJkHsB0ciAAJTBuJ9cF QBYQB0BsIABrH7AH4Kch8CCwHxRpcgUQZyCwrmkekRnPAFBiIkEsKb//GtAdcBHAInECICXhKHIl UPRnaAVAYiPRAiAAkASB+QmAIHAEkCVQAkAe4gUBzyDBBzAhYR1gZ28EcC1Q+QBwYWcT4AnwBUAT UADQvSlgYweRAhAFwB8jcxOz1nMdERuBdwhgbB1gMYD/ACALcSfhLcED8CfQHuId0eMt8ScAaWJ1 JZEDUi1QLyAAKDADoAWgbQqwbnlZHDFleC6hCJBuMYAurwqFCoUa8RvwRwbwZC3AlHJnCoVEBREt VB+B7CBXIGgTpHM3zAr0HYAIMTgwAtFpLTE0njQN8AzQPYMLWTE2CqD3A2AfcQVALT+nCoc+Wwww /T8mRgNhG2A+Pz9EDIIF0AhFQUQYQDEzQGEFBvAuNnFbU01UUPo6RG5dQE9BXQZgAjBCj4dDmyOw CHBzZGF5IVAYTm92E+A5MSAyMyEhUDE5OTVMUDE6NDA5FLBNRt9BXVRv/0kfQ5wzQClgC1AcsBYQ I/DKcDdhdAQgb2YdcRPA400/R+51Ymo/YU9fQ5vqUh0QTRzwZBwxJQAHgJ8KsDCwHMM7rzyzMzY+ J98aRT8mCFAlUR8AYgDQG/DvNbMcYCi+LfFmLlE3gSAS5lAlAAnwaXhRsjDhJ+DfIVAbkCLQB4AK hWEgUCAA/xuzHuIlAAfgJcIovia3IlGvJ6UBkGEzUnBmHRBTC4D/MYAKhRuxBCAfemOnBuBbsz0h UGMIcF4hLJEv8XVw/0tAE9AdYB5CLsBipTuWB3D/LqEpUUuwZNUtUAWwHLAv4v9rkyaxJAEm0CKB HFBrsR7EXSXCSQIwBJERwCwKhXO/LqAj8ByAItBj8yPBVwWwzTNRVxzROnBlYiFQaSo/NFItshzw AJAg0R3Rb2J9M7IgJBBYlmWzB4BskHX+bR0QG5ALUQOgHdMFQGigvxxRV9dcZRygB+ARsHIkEN9e UWAAHfBU8ATyYjSUCoXYKEN5OTIgsSkdECOy/1fXceY0gR2gHWA1s2/jILPaTTCIUgeQHPByEXAK hZZMAaBXqigv4nBvBBD/NVAn4T9AI8AkwRYQC2Bo4v8d0R8iefB6LwqFXgAgsAhw/yWkJTAcMi/x J0NSUyi9IVDfKGMRgBxCC2AtwGyGJAqF7yUwB5AnYXoBeS6gUlNeAfspYB2AeiDRL+Ih9Ik4ZeHf KHIi0AOgLcElUHiBAzCw/4BSYDYv8Ruwf8AlootkJ3H9ceZqJuEd8FfhLbAcEFJT/2kqdOgLUV5R AiBlR3pIdMLbJJFpAnA1cDWkZUuwJxA7LNIekVQFEDjALHAtTP8h4YyTJbI0AoLWCsAHgBGgvyFQ FhB9pJeTJrcuoG9RgnURwGMdEFcocjMklNB1/yBBMPEd1R6RNgAKhVfXUnE/B5ARsAIwBzFh/2kp Pz//W5ADkZqyPyFssR2zYBdpKv+AvSj6i0OasQXANnVvBAdA/4mRBCALgHTBUtYiUX+1HbP3e3Id wqQ6L2Shd5I1tlfW/yFQNWGLMxwygtY1cIOCHNTfHUA14B+wBUAVoG9hMyiB/2WzhqMDUB4RV4CU oSlgHtP/JvEgsR/xMcIlwYemKMMmxf+qRIahcwBVEmrhaRuUl4uS8yEhHRBCZR7iC4AKhZfmszXx EbBsZiFQZbNzJQCfM0IJ8BGAXkIlwnVueHD/IGAucSVxg4JScSXCaSk3vf5QLHC4UZfSf7CNYqDC LpL/IqAlcCfSr+Id4CXCCcAIYP910RxCJPEscHTBiyIiUlwBfmRqBiGyBbG25RwQHjFj/wpAcKGU kZvBa6KLQZDiEYCvsoEFoJShCYA/N8xMrPX/McEgUAsgoKOgUR72ozofiP91wWHDKTAcEJ2hAhAE cAqF+xFxC4AhN88bIldTCoWVWBs2MQSQLzB0jNZXTVIATC1BUlMtVVP8REHJ3M8PWU9aXz9iCoUF FTEA05AAAAMAEBAAAAAAAwAREAAAAABAAAcwwKwX1fO5ugFAAAgwwKwX1fO5ugEeAD0AAQAAAAUA AABSRTogAAAAAP/e ------ =_NextPart_000_01BAB9C2.7C111C00-- <------------------------------>
Date: Thu, 23 Nov 1995 23:18:18 -0500 From: GrapeGrowr@aol.com Subject: Re: The Big Picture either way, stop copying me with all our mail. I'll beleive that this is a farmers group when hell freezes over. <------------------------------>
Date: Fri, 24 Nov 1995 01:15:40 -0500 From: Dripigate@aol.com Subject: Re: R. Mead's homepage idea First Class, I will help where I can, the sooner we get better knowledge out there the better. i will help all I can. <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Sat Nov 25 16:21 EST 1995
Date: Sat, 25 Nov 1995 10:13:38 -0600
Message-Id: .<.199511251613.AA29078@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 359

Contents:
Re: R. Mead's homepage idea (redling@gumbo.bae.lsu.edu (Robert Edling))

<---------------------------------------------------------------------->

Date: Sat, 25 Nov 95 09:55:14 CST From: redling@gumbo.bae.lsu.edu (Robert Edling) Subject: Re: R. Mead's homepage idea Richard: Sounds like answers to Frequently Asked Questions (FAQ) to me which is common to the Interent. I believe there are procedures suggested as to what steps to go through with resprect to editing, etc. I am not sure of the source URL but if you are intertested it would bew a place to start on how to procede. Bob Edling <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Sun Nov 26 16:22 EST 1995
Date: Sun, 26 Nov 1995 10:13:57 -0600
Message-Id: .<.199511261613.AA05582@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 360

Contents:
Re: R. Mead's homepage idea (LodiCraig@aol.com)
Re: R. Mead's homepage idea (GrapeGrowr@aol.com)
Re: R. Mead's homepage idea (Tim1Utah@aol.com)
Re: R. Mead's homepage idea (geoflowr@halcyon.com (Rodney Ruskin))
Re: R. Mead's homepage idea (Peter Leroy .<.peter@scgt.oz.au.>.)
Re: R. Mead's homepage idea (ozoneguy@redshift.com (Richard Olson))

<---------------------------------------------------------------------->

Date: Sat, 25 Nov 1995 14:11:46 -0500 From: LodiCraig@aol.com Subject: Re: R. Mead's homepage idea > I plan to set up a homepage from a new service am subscribing to (Cybergate). Fantastic ... ambitious too. >I need input from everyone on Trickle-L whether they be farmers, researchers, industry people etc. I'm a grape grower. I would hope that the homepage is oriented towards both industry and non-industry persons. Always keep in mind that we are a diverse group even within agriculture as one grapegrower may have a completely different mindset, approach, and priorities than another. Some of the most dramatic advances in resource conservation related to farming (water, fertilizer, land, runoff control, and waste water re-use) are made possible through drip irrigation. The Web pages provide a place where we can 'show off' to the rest of the world. I have already seen the Trickle-L group referanced in other dialogues. This group is small, but the impact is dramatic. (I hope any negative discussions have not been 'picked up' as the general mindset of farmers.) >What would you want to see on my homepage of essential drip irrigation information?? I would like to see full advantage of the Hypertext logic allowing each page to handle a specific subject. Until more people have full graphics implementation, I think it makes sense to make most of the pictures an option to click on, not just come up 'un-invited'. I prefer low resolution graphics on the introductory pages ... that comes up fast. I like your idea of focusing on the Do's and Don'ts of implementing drip. You might want to make that the second layer down from the homepage leaving yourself open to introduce and gauge popularity of other concepts on your initial homepage. By the way, I do consider your efforts to be a good and appropriate use of my tax dollars, Richard. Craig <------------------------------>
Date: Sat, 25 Nov 1995 17:47:37 -0500 From: GrapeGrowr@aol.com Subject: Re: R. Mead's homepage idea All my farms were converted to drip over 15 years age. How about you? <------------------------------>
Date: Sat, 25 Nov 1995 18:22:20 -0500 From: Tim1Utah@aol.com Subject: Re: R. Mead's homepage idea Have many of you heard of the Irrigation Association's Drip/Micro Certification? It is a national certification for agricultural Drip/Micro designers. In addition we have a 2 day Drip/Micro design class that is very well put together. The exam and certification process is a multi-level procedure. On the average it takes from 1 to three years to complete and requires actual work experience for completion. If you would like more information please call me (Tim Wilson) at 801-964-6670 or the I.A. main office at 703-573-3551 and speak to Daria. The I.A. is very committed to Industry education. The Drip/Micro class is just one of many that we offer to the AG as well as the landscape market. We are set up to offer these classes anywhere in the US and Canada at anytime of the year. If you would like to attend a class, or your organization would like to sponsor a class, please let me know. <------------------------------>
Date: Sat, 25 Nov 1995 17:37:15 -0800 From: geoflowr@halcyon.com (Rodney Ruskin) Subject: Re: R. Mead's homepage idea At 11:06 AM 11/23/95 -0600, MEAD2513@aol.com wrote: I plan to set up a homepage from a new service am subscribing to >(Cybergate). The homepage will be linked from the Water Management Research >Lab's homepage (and possibly others related to drip). > >Please respond to me personally or to the group as a whole. Is this a bad >idea or should it include even more than I have covered? > Great idea. We are behind you. Rodney <------------------------------>
Date: Sun, 26 Nov 1995 17:53:00 +1000 From: Peter Leroy .<.peter@scgt.oz.au.>. Subject: Re: R. Mead's homepage idea At 07:32 PM 25/11/95 -0600, you wrote: >At 11:06 AM 11/23/95 -0600, MEAD2513@aol.com wrote: > I plan to set up a homepage from a new service am subscribing to >>(Cybergate). The homepage will be linked from the Water Management Research >>Lab's homepage (and possibly others related to drip). >> >>Please respond to me personally or to the group as a whole. Is this a bad >>idea or should it include even more than I have covered? Yup!.. agood idea.. perhpas we can provide a link on our pages here in Australia :peter <------------------------------>
Date: Sun, 26 Nov 1995 00:17:28 -0700 From: ozoneguy@redshift.com (Richard Olson) Subject: Re: R. Mead's homepage idea Great idea Richard!! I think that a FAQ sheet would be a very good starting point; then the use of articles by a variety of sources on practices and results. Richard Olson * Environmental Health Research 225 Crossroads Blvd., No. 260 * Carmel, CA 93923 408.624.3763 ph * 408.624.6122 fx ozoneguy@enviro.org - email *Specialist in Ozone* Water & Air Purification <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Mon Nov 27 16:22 EST 1995
Date: Mon, 27 Nov 1995 10:14:21 -0600
Message-Id: .<.199511271614.AA17255@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 361

Contents:
Richard Olson's comments (MEAD2513@aol.com)
Hello out there,   (sinfield@deakin.edu.au (Dale Sinfield))
general dripper and poly pipe questions (sinfield@deakin.edu.au (Dale Sinfield))
Can cryogenic metal hardening be used in drip industry (MEAD2513@aol.com)
Re: Can cryogenic metal hardening be used in drip industry (LodiCraig@aol.com)
Re: Hello out there,  (GrapeGrowr@aol.com)

<---------------------------------------------------------------------->

Date: Sun, 26 Nov 1995 12:14:29 -0500 From: MEAD2513@aol.com Subject: Richard Olson's comments Richard Olson wrote: >I think that a FAQ sheet would be a very good starting point; then the use of articles by a variety of sources on practices and results< We already have a FAQ area within the Trickle-L area on the WMRL's homepage. BUT, I plan to extend even that idea on my homepage too. Thanks Richard O. and everyone else who have given the Web page idea support. I intend to give everyone credit for those who contribute to the homepage. It will take months for me to build this thing, but I think it will be a valuable source of information for beginners, urban users, growers and researchers. Please keep the comments coming for those who haven't contributed. Richard Mead Trickle-L owner/manager <------------------------------>
Date: Mon, 27 Nov 1995 08:30:03 +1100 (EST) From: sinfield@deakin.edu.au (Dale Sinfield) Subject: Hello out there, My name is Bernie Chriscoll. I am using a collegue of mines E-mail address to enquire as to the following items. I, along with Dale, will do the courtesy normal introduction in a few days. QUESTIONS: -What is the maximum emission rate for a single dripline emitter(l/h), surface in particular,? -What is the cheapest way of fitting poly laterals (25 or 30 mm)to PVC manifolds (for a system incorporating underground manifolds 300 COVER and above ground laterals) i.e.TAPPING SADDLES OR PVC TEES WITH RISERS -What is the maximum recommended manifold diameter (mm) for a dripper/sprinkler irrigation system incorporating PVC manifolds and - 25 mm laterals - 32 mm laterals -For a 4x2 m spacing treelot (soil infiltration rate throughout treelot =12 mm/hr) what is the maximum application rate that can be practically achieved using a dripper irrigation system? -For a 4x2 m tree grid is a 6x4 m triangular spacing (sprinkler dia=12 m)O.K? -What type (i.e.Class OR Type) of polyethylene pipe should be used for laterals supplying sprinklers operating in the range 150 - 350 kpa (1.5 - 3.5 Bar)? OR for the different types of polyethylene laterals available what are the maximum allowable working pressures ? BERNIE CHRISCOLL Dale Sinfield "Tasmanians. Naturally Different" <------------------------------>
Date: Mon, 27 Nov 1995 08:31:53 +1100 (EST) From: sinfield@deakin.edu.au (Dale Sinfield) Subject: general dripper and poly pipe questions Hello out there, My name is Bernie Chriscoll. I am using a collegue of mines E-mail address to enquire as to the following items. I, along with Dale, will do the courtesy normal introduction in a few days. QUESTIONS: -What type (i.e.Class OR Type) of polyethylene pipe should be used for laterals supplying sprinklers operating in the range 150 - 350 kpa (1.5 - 3.5 Bar)? OR for the different types of polyethylene laterals available what are the maximum allowable working pressures ? -What is the cheapest way of fitting poly laterals (25 or 30 mm)to PVC manifolds (for a system incorporating underground manifolds 300 COVER and above ground laterals) i.e.TAPPING SADDLES OR PVC TEES WITH RISERS -What is the maximum recommended manifold diameter (mm) for a sprinkler irrigation system incorporating PVC manifolds and - 25 mm laterals - 32 mm laterals -What is the maximum emission rate for a single dripline emitter? -For a 4x2 m spacing treelot (soil infiltration rate throughout treelot =12 mm/hr) what is the maximum application rate that can be practically achieved using a dripper irrigation system? -For a 4x2 m tree grid is a 6x4 m triangular spacing (sprinkler dia=12 m)O.K? BERNIE CHRISCOLL Dale Sinfield "Tasmanians. Naturally Different" <------------------------------>
Date: Sun, 26 Nov 1995 22:51:50 -0500 From: MEAD2513@aol.com Subject: Can cryogenic metal hardening be used in drip industry Once again, thanks for all the positive comments on my future homepage of general drip irrigation information !! I'll be posting frequent updates on Trickle-L to let you know what will be on the page.....I'll be needing your input. Please, if anyone has text information that you could e-mail me concerning generic drip information, please send it to me. If you don't have it on disk/computer, send it to me snail mail*. You will be referenced and linked one the page if desired. This could be an asset to your organization or company. ============================================================= A few weeks ago I promised to discuss other issues semi-related to drip irrigation. One of those issues was a process called "Cryogenic hardening" of metal. From what I understand, this process involves dipping a metal object into a solution of liquid Nitrogen at about 200 degrees below 0 F. The temperature is lowered from room temperature slowly to the very cold point. The metal's atoms are then arranged to a more dense alignment where upon thawing the atoms are more evenly spaced. Since the atoms are more uniformly woven throughout the metal, this cryogenic process strengthens the metal by up to 400%! My question: Could cryogenic hardening be used in strengthening metallic fittings in the drip industry such as: -backflow prevention valves? -check valves? -gate valves? -pump casing? -other? My emphasis is not to make the metal stronger per se, but to use less metal, dropping the price of the fitting. To my knowledge, the cryogenic process is reasonably inexpensive, especially when done in mass quantities. However, I have no idea as to how cost effective this process is when entered into the whole manufacturing scheme. I just wanted to run it by anyone out there who has metal fitting experience, be it selling or manufacturing. Any comments out there in hardware/drip industry land? Next week: Chlorine use in drip irrigation (what's legal, what's not, how much) Richard Mead Trickle-L owner/manager * My home address is: 2513 Gibson Clovis,California 93611-5466 <------------------------------>
Date: Mon, 27 Nov 1995 00:29:26 -0500 From: LodiCraig@aol.com Subject: Re: Can cryogenic metal hardening be used in drip industry In a message dated 95-11-26 22:54:01 EST, you write: >My question: Could cryogenic hardening be used in strengthening metallic >fittings in the drip industry such as: > >-backflow prevention valves? >-check valves? >-gate valves? >-pump casing? >-other? On first blush, this subject area seems to be a bit of a reach for our topic area ... but I'll bite: What is the impact of cryogenic hardening on impact resistance?. Traditionally the two are inversely related: The harder the material, the more likely it will shatter. Pump Castings: How about hardening of bowls and impellers of the the pumps we use. Abrasive wear (due to sand) on those components tends to be the most expensive wear item in our systems. Of course hardening the ripper shanks and guide tubes for installing SDI could also be worthwhile ... especially since this process might harden interior surfaces of the guide tubes otherwise inacessible to traditional methods of 'hardfacing.' >From Craig ... a grape grower from Lodi, California, where our approach to issues tend to be a bit more urbane and sensitive to the concerns of the rest of the world. ;-) <------------------------------>
Date: Mon, 27 Nov 1995 01:25:00 -0500 From: GrapeGrowr@aol.com Subject: Re: Hello out there, 1)Depends on length of run. 2) Saddles on larger pipe (2 1/2 " and larger), tees on smaller pipes. This is only my experience. This all include cost of labor. The other questions need engineering. <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Tue Nov 28 16:22 EST 1995
Date: Tue, 28 Nov 1995 10:14:50 -0600
Message-Id: .<.199511281614.AA09793@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 362

Contents:
Drip information (GroAire@aol.com)
Re: R. Mead's homepage idea (geoflowr@halcyon.com (Rodney Ruskin))
Re: R. Mead's homepage idea (Peter Leroy .<.peter@scgt.oz.au.>.)
Re: Drip information (MEAD2513@aol.com)

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Date: Mon, 27 Nov 1995 20:45:39 -0500 From: GroAire@aol.com Subject: Drip information Please send me your Snail mail address as I have a ton of informatiion on drip as I have been involved in the industry for 15 years. It might be helpful if you could detail which areas you are particularly interested in. Dave Enyeart <------------------------------>
Date: Mon, 27 Nov 1995 19:32:56 -0800 From: geoflowr@halcyon.com (Rodney Ruskin) Subject: Re: R. Mead's homepage idea At 12:44 AM 11/26/95 -0600, Peter Leroy wrote: >Yup!.. a good idea.. perhpas we can provide a link on our pages here in >Australia > >:peter Hi Peter, Who are you (our pages) and what is your WWW address? Rodney. <------------------------------>
Date: Tue, 28 Nov 1995 16:33:17 +1000 From: Peter Leroy .<.peter@scgt.oz.au.>. Subject: Re: R. Mead's homepage idea Hi Rodney, >Who are you (our pages) and what is your WWW address? Sorry... I tend to forget minor things such as url's at times :] http://www.scgt.oz.au should just about find us. Under the Turfgrass/Hort button ..you should find some hyperlinks and things where we could add a few pages off our server for folks on this side of the big pond .. only a thought :peter <------------------------------>
Date: Tue, 28 Nov 1995 11:01:06 -0500 From: MEAD2513@aol.com Subject: Re: Drip information Dave Enyeart requested >Please send me your Snail mail address as I have a ton of informatiion on drip as I have been involved in the industry for 15 years. It might be helpful if you could detail which areas you are particularly interested in.<.. Thanks for your input Dave! I am interested in generic drip irrigation such as the wide range of sizes drip tape comes in, fertilizers used to inject into a system, fertilizers that don't mix well with each other, basic chemigation info., basic subsurface drip irrigation management info., horror stories that we all can learn from, basic scheduling tools etc., using drip for wastewater disposal and links ANYONE that is interested in having a link (a sort of homebase drip reference guide). Like I said before, this page will take months for me to build since I'm doing it on the side and as I build it (with the help from individuals like yourself) we all can contribute what really needs to be on there for the biggest impact. Once again, my snail mail address is: R. Mead 2513 Gibson Clovis, CA. 93611-5466 <------------------------------>
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From root@crcnis1.unl.edu Wed Nov 29 16:42 EST 1995
Date: Wed, 29 Nov 1995 10:34:12 -0600
Message-Id: .<.199511291634.AA01425@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 363

Contents:
Re: Drip information (CTaylor26@aol.com)
 (olmstead@owens.ridgecrest.ca.us (Karl Olmstead, K&F Engineering))
Re: Richard Olson's comments (benasher@bgumail.bgu.ac.il)

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Date: Tue, 28 Nov 1995 15:17:48 -0500 From: CTaylor26@aol.com Subject: Re: Drip information I too would like the the drip info. Here is my business address. Sure Shot Irrigation 18666 Redmond Wy. # H-2058 Redmond, WA. 98052 Thanks, Carl <------------------------------>
Date: Tue, 28 Nov 1995 20:35:51 -0700 From: olmstead@owens.ridgecrest.ca.us (Karl Olmstead, K&F Engineering) Subject: unsubscribe trickle-l olmstead@ridgecrest.ca.us olmstead@ridgecrest.ca.us Karl Olmstead K&F Engineering Ridgecrest, CA 93555 <------------------------------>
Date: Wed, 29 Nov 1995 11:01:24 -0500 From: benasher@bgumail.bgu.ac.il Subject: Re: Richard Olson's comments Dear Richard It's about time for me to use the excellent tool you have deviced for us. So here is my first message to the participants. Take care. Jiftah Ben-Asher. Dear Colleagues and Friends I have recently received a request from an Israeli (Big, Israeli standards ) Avocado grower asking me about subsurface drip for Avocado. I have no information about it but would like to inquire who has some experience in the subject. The information may be direct (to Avocado ) or indirect ( Related orchards). Every piece of information is welcomed but to make it easy for the volunteers here are some questions to be answered: 1.Is there any unique problems of emitter clogging by the roots of the Avocado. 2.What kind of pipe is preferred. Is it Tape or hard Polyethylene with hardness degree from 2.5-4. 3 What is the optimal spacing with respect to the trunk. 5. How many laterals per tree 6. What kind of emitter. Discharge etc. 7. What is the optimal depth. 8. May be surface irrigation is preferred. Thanks for you help. Jiftah Ben-Asher <------------------------------>
End of Digest ************************


From root@crcnis1.unl.edu Thu Nov 30 16:44 EST 1995
Date: Thu, 30 Nov 1995 10:36:28 -0600
Message-Id: .<.199511301636.AA24748@crcnis1.unl.edu.>.
From: trickle-l@unl.edu
Subject: TRICKLE-L digest 364

Contents:
Re: Richard Olson's comments (flowers@Rt66.com (Wilderness Flowers))
Re[2]: Drip information ("Jerry Neufeld" .<.jneufeld@fs.scs.unr.edu.>.)
Trickle design: manuals, emitter coefficients, constants (rolld@cadvision.com)
Re: Trickle design: manuals, emitter coefficients, constants (Tim1Utah@aol.com)
New member response (MEAD2513@aol.com)
      Re: Drip information (.<.ABUZREIG@net2.eos.uoguelph.ca.>.)
Re: New member response (flowers@Rt66.com (Wilderness Flowers))

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Date: Wed, 29 Nov 95 10:32:22 MST From: flowers@Rt66.com (Wilderness Flowers) Subject: Re: Richard Olson's comments >Dear Richard re subsurface drip there is a grower here in nm that has quite a bit of experience with this and i will get his address for you ,also an aside: Mark Koch of Koch industries in Colorado has bee using his subsurfasce drip to heat the soil; after irrigation with excellent success you can reach him @ 303 644 3763 fax -3045 Martin Connaughton Wilderness Flowers flowers@rt66.com >It's about time for me to use the excellent tool you have deviced for us. >So here is my first message to the participants. Take care. Jiftah >Ben-Asher. > >Dear Colleagues and Friends >I have recently received a request from an Israeli (Big, Israeli standards >) Avocado grower asking me about subsurface drip for Avocado. I have no >information about it but would like to inquire who has some experience in >the subject. The information may be direct (to Avocado ) or indirect ( >Related orchards). >Every piece of information is welcomed but to make it easy for the >volunteers here are some questions to be answered: >1.Is there any unique problems of emitter clogging by the roots of the Avocado. >2.What kind of pipe is preferred. >Is it Tape or hard Polyethylene with hardness degree from 2.5-4. >3 What is the optimal spacing with respect to the trunk. >5. How many laterals per tree >6. What kind of emitter. Discharge etc. >7. What is the optimal depth. >8. May be surface irrigation is preferred. >Thanks for you help. >Jiftah Ben-Asher > > > > Martin Connaughton Wilderness Flowers Rt.19 Box 111D Santa Fe, NM 87505 "It could only be fresher if you grew it" <------------------------------>
Date: Wed, 29 Nov 95 14:42:05 PST From: "Jerry Neufeld" .<.jneufeld@fs.scs.unr.edu.>. Subject: Re[2]: Drip information Dave, Could I also bother you for a copy of the generic drip information materials? Thanks, Jerry Neufeld 113 Carson Rd. Battle Mountain, NV 89820 ______________________________ Reply Separator _________________________________ Subject: Re: Drip information Author: .<.trickle-l@unl.edu.>. at smtplink-unscs Date: 11/28/95 8:06 AM Dave Enyeart requested >Please send me your Snail mail address as I have a ton of informatiion on drip as I have been involved in the industry for 15 years. It might be helpful if you could detail which areas you are particularly interested in.<.. Thanks for your input Dave! I am interested in generic drip irrigation such as the wide range of sizes drip tape comes in, fertilizers used to inject into a system, fertilizers that don't mix well with each other, basic chemigation info., basic subsurface drip irrigation management info., horror stories that we all can learn from, basic scheduling tools etc., using drip for wastewater disposal and links ANYONE that is interested in having a link (a sort of homebase drip reference guide). Like I said before, this page will take months for me to build since I'm doing it on the side and as I build it (with the help from individuals like yourself) we all can contribute what really needs to be on there for the biggest impact. Once again, my snail mail address is: R. Mead 2513 Gibson Clovis, CA. 93611-5466 <------------------------------>
Date: Wed, 29 Nov 95 20:53:25 PST From: rolld@cadvision.com Subject: Trickle design: manuals, emitter coefficients, constants I am looking for a state of the art trickle design manual or text. If someone can help me out it, the assistance would be greatly appreciated. Looking for the current "best" source, if one is available. Also is there a good source of information all in one place showing the emitter coefficients and constants for all the different makes and types of emitters out there? This would be a great help in design work, rather than tracking down these numbers from individual manufacturers or calculating these from individual pressure vs. discharge curves. Thanks all. <------------------------------>
Date: Wed, 29 Nov 1995 22:38:23 -0500 From: Tim1Utah@aol.com Subject: Re: Trickle design: manuals, emitter coefficients, constants Dr. Burt at Cal Poly, ITRC has the best manual I have seen in regards to Drip/Micro-spray 805-756-2434. As far as the emitter, data you could check with C.I.T. at Fresno State, they do irrigation product testing and evaluation 209-278-2066, in addition CIT also has a compilation of articles called Micro Irrigation: Method and Materials Update. Also, Hardie has an excellent AG drip/Micro manual as well, 714-831-6000. <------------------------------>
Date: Thu, 30 Nov 1995 01:00:16 -0500 From: MEAD2513@aol.com Subject: New member response The following is a survey response* from a new Trickle-L subscriber whose name was not left at the end of posting. This reminds me, if you post anything to Trickle-L (or me personally), please "sign" your name at the bottom. It makes responses to your posting more efficient. Thanks !! Richard Mead Trickle-L owner/manager *Any new subscribers who have NOT received a "Welcome to Trickle-L survey" form, please let me know at my email address. =========================================================================== I'm going to kill two birds with one stone as your requests were very similar. 1. My affiliation with subsurface drip began 15 years ago when my father and I began exploring ways to forcefully inject air in the soil to benefit root growth. I have tested all the popular systems on the market and have settled on one as being more efficient at delivering air and water independently of each other. I won't mention the manufacturer on-line so I won't influence anyone's buying decisions. Besides, I'm actively marketing aeration and irrigation systems. I will either charge an engineering fee for designing a system for a particular piece of ground or I will drop the engineering fee if they purchase the hardware from my company- GRO-AIRE IRRIGATION SYSTEMS INC. There is no one aerating soils the way that my father and I have been. My father was an irrigation design engineer and soils - crop specialist that traveled throughout Iran, Iraq, Syria, Saudi Arabia Jordan, Israel, England, Russia, Central & South America, and everyone of the continental United States. Wherever he traveled he seen problems of aeration of soils when he was looking for irrigation problems. By correcting the aeration problems either chemically or mechanically( chiseling or harrowing) he often times would correct the water infiltration problems. Out of those travels we have progressed to marketing subaeration within the last two years after 13 years of University and private beta research performed by private growers and Extension Labs. We have been featured in several trade publications, the most recent being the "FARM SHOW" vol.19, No. 6, 1995. The three marketing areas that we are attacking are Turf, Horticultural (greenhouses), & agricultural. The oldest turf system that I designed is now in its 11th year. I am currently about to kick off construction on a 1 million square foot greenhouse designed to grow organic vegetables. The first year of crop is already contracted for sale. In the agricultural sector I am currently involved in discussions with farmers about purchasing subsurface systems for either air or water or both in Panama, Costa Rica, Puerto Rico, Michigan, Missouri, Wisconsin, Ohio, Iowa, Illinois, Nebraska, and Colorado. 2. I am involved in designing systems for everything from Ginseng to apples to potatoes to flowers. 3.Although I have general guidelines that I follow, I believe in designing a system for each piece of ground on a field by field basis. I take into account soil types and what are the percentages for the different soil types in any given field. This helps establish application rates. I also take into account elevation changes in the field. Sometimes this will require different zones as opposed to the field being flat. I like to test and examine the water sources very carefully. I have an analytical lab test the water for 32 compounds and elements that will effect how I Chemically treat the water and filter it. Ditch water requires more steps than well water in the filtration process. If the water is high calcium carbonates or iron then I may recommend a treatment that I will get into later on. Cultural or farming practices need to be accounted for. With subsurface systems that are a permanent fixture then the operator need to think about a minimum till or a no-till program in certain situations. Cropping plans for the immediate as well as the long range future need to be discussed. Power sources have to be examined to calculate the economics of the system and the capital investment. 4. One of the most difficult problems I have encountered with drip is how to chemically treat water and still retain an organic certification. In waters that have Iron bacteria problems, a grower would normally treat with sulphuric acid in the well, however organic growers cannot do that. In waters that are high in calcium carbonates the emitters are in danger of plugging up. Once again an acid is the solution chemically; again however the certified organic grower cannot use acid. So, about three years ago I was talking to a Norwegian businessman and he suggested ceramic magnets. My business partner is a patent attorney with a degree in petrochemical engineering. He scoffed at the suggestion but the Norwegian seemed so adamant that I decided to try it anyway. The first application was in a commercial greenhouse where iron bacteria was a problem. The filtration screens had collapsed due to buildup and the distribution system had also plugged up when he tried to run without a filter. A new distribution system was laid in and new filtration with the addition of magnets. That was three years ago and the system is still running. The second trial was also in a greenhouse where calcium carbonates were turning the evaporative pads white and decreasing their efficiency. After installing the magnets it not only removed the Carbonates that had built up, but kept them a nice dark brown - just like the day the pads were first installed. The owner could not believe his eyes so he removed the magnets to assure himself there had not been any other outside force at work. Very quickly the pads began to turn white again, so he reinstalled the magnets and once again their efficiency was restored. It was quite noticeable as the length of runs in this tomato house are 150' long and will suffer a severe temperature increase if the pads are not cooling and restricting air movement down the rows. The third trial was by a ASCS agronomist who has one of three computers in the U.S. that is responsible for the soils maps that are published for individual counties. Nice piece of hardware with 15 Gigs. Oh well - that's a different tangent. Galvanized fittings don't typically last more than 30 days with his water. We installed the magnets 9 months ago and the fittings were taken apart for inspection last week and they still look new. Years ago I efficiency tested a group of wells and pumps for a farmer in southern Nebraska. Recently he contacted me as he wishes to have me design drip and aeration systems for the corners. During the discussions,magnets were mentioned and he said he had been using them for several years on those same center pivots I had tested. I went back to my photo record and sure enough there was a picture of me standing by a pivot with a group of magnets not 15 feet away and were being totally ignored by me. He had noted about a 10% increase in his crops as a result of using the magnets. Phew! enough of that. 5. Aeration helps to lessen the requirements for fertigation substantially. As our air is 78% nitrogen and roughly 20 % oxygen, these are both elements that are in high demand in the soil microflora. Unfortunately in mother nature, she allows a build up of carbon dioxide with is a by product of aerobic bacterial action. As the levels increase, root growth is inhibited and damaged if the levels are to remain at high levels for any long period of time. With forced infusion of air into the root zone we are able to eliminate this occurrence thus allowing for greater root proliferation. I t has been noted at the University of Nebraska that the trace elements in the flag leaf showed increased levels in aerated plots in the areas of iron, sulphur, manganese,& zinc. This was due to an increase in the bacterial action in the soil making these and several more elements more readily available to the root system. There are also strains of nitrogen fixing bacteria in the soil that are aerobic in nature. i.e. aztobacter. By stimulating aerobic actions and increasing populations the amount of nitrogen made available to the plant is increased. Reductions as high as 80% of commercial fertilizers have been documented. This is also partially responsible by the bacteria breaking down organic matter in the soil and making those nitrogen forms more readily available. We can also effect soil temperature which helps to stimulate bacterial action in the early spring. I recently had one of my growers explaining to the Minister of Agriculture from Pakistan that on his farm he was able to take a 52 degree soil and raise it to 65 degrees with in four hours time. I also have growers that do not irrigate but they do aerate, Anytime you water a soil, the pore space is removed and the plant shuts down until gravity pulls the excess moisture downward creating a vacuum. This vacuum then pulls in atmospheric air and the growth process is renewed. By forced infusion of air the amount of down time on the plant is reduced and the time to maturity is decreased over a season's period of time or in some cases the season is extended. 6. Rodent damage is reduced. Why? I don't know for sure but there are a couple of popular theories. The air escaping out the emitters create an audible frequency that the rodents do not like. OR that air movement in the soil is foreign to them and they leave. We see this occurring throughout the vegetable truck farms where this has been sold. <------------------------------>
Date: Thu, 30 Nov 1995 04:33:32 EDT From: .<.ABUZREIG@net2.eos.uoguelph.ca.>. Subject: Re: Drip information I am also interested in the drip information many thanks Majed Abu-Zreig, Ph.D School of Engineering University of Guelph Guelph, Ontario N1G 2W1 Canada <------------------------------>
Date: Thu, 30 Nov 95 08:57:36 MST From: flowers@Rt66.com (Wilderness Flowers) Subject: Re: New member response >The following is a survey response* from a new Trickle-L subscriber whose >name was not left at the end of posting. This reminds me, if you post >anything to Trickle-L (or me personally), please "sign" your name at the >bottom. It makes responses to your posting more efficient. Thanks !! > >Richard Mead >Trickle-L owner/manager > Richard re:this message on air /irrigation injection is there any way to email contact the sender? I am on the organizing committe for this years NM Organic Commodities annual meeting and would like to invite the sender to speak. I'll contact the company through other means but if you have a contact # or know of similar company please let me know. Also could you recomend someone to speak on "organic" hydroponics at our meeting? > > >Martin Connaughton > Martin Connaughton Wilderness Flowers Rt.19 Box 111D Santa Fe, NM 87505 "It could only be fresher if you grew it" <------------------------------>
End of Digest ************************
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