TRICKLE-L: 199705XX
is the compilation of discussion during May 97
via AB4EL Web Digests @ SunSITE
>From owner-TRICKLE-L@crcvms.unl.edu Thu May 1 01:05 EDT 1997
Date: Thu, 01 May 1997 00:03:44 -0600
Subject: TRICKLE-L Digest - 29 Apr 1997 to 30 Apr 1997
There are 4 messages totalling 249 lines in this issue.
Topics of the day:
1. Fwd: Schedule
2. Replies on "lowerin pH by burning sulphur"
3. Positioning Neutron Moisture Meter access holes
4. Chimney effect
Date: Wed, 30 Apr 1997 03:42:58 -0400
From: Tim1Utah@AOL.COM
Subject: Fwd: Schedule
---------------------
Forwarded message:
From: lori@irrigation.org (Lori Brown)
To: Tim1Utah@aol.com (Tim)
Date: 97-04-29 10:28:03 EDT
THE IRRIGATION ASSOCIATION
SCHEDULE OF EDUCATION COURSES
HAWAII
MAUI
ELECTRICAL TROUBLESHOOTING - MAY 2, 1997
LANDSCAPE IRRIGATION AUDITOR - MAY 5 - 6, 1997
SPONSORED BY THE LANDSCAPE INDUSTRY COUNCIL OF HAWAII
HOSTED BY THE C.T.A.H.R. COOPERATIVE EXTENSION
KONA
ELECTRICAL TROUBLESHOOTING - MAY 8, 1997
DRIP IN THE LANDSCAPE - MAY 9, 1997
SPONSORED BY THE LANDSCAPE INDUSTRY COUNCIL OF HAWAII
NEW MEXICO
ALBUQUERQUE
LANDSCAPE IRRIGATION AUDITOR - MAY 8 - 9, 1997
SPONSORED BY THE NEW MEXICO IRRIGATION ASSOCIATION
HOSTED BY THE CITY OF ALBUQUERQUE
KANSAS
WICHITA
BUSINESS OF IRRIGATION CONTRACTING - MAY 19, 1997
SPONSORED BY THE KANSAS IRRIGATION ASSOCIATION
HOSTED BY THE CITY OF WICHITA
CALIFORNIA
SAN DIEGO
ELECTRICAL TROUBLESHOOTING - JUNE 24, 1997
CAL POLY POMONA
ELECTRICAL TROUBLESHOOTING - JUNE 25, 1997
OAKLAND/CONCORD
ELECTRICAL TROUBLESHOOTING - JUNE 26, 1997
SAN JOSE/SUNNYVALE
ELECTRICAL TROUBLESHOOTING - JUNE 27, 1997
SPONSORED BY THE CALIFORNIA LANDSCAPE CONTRACTORS ASSOCIATION
WASHINGTON
BELLEVUE
LANDSCAPE IRRIGATION AUDITOR - JUNE 30-JULY 1, 1997
SPONSORED BY: WASHINGTON CHAPTER OF THE IRRIGATION ASSOCIATION
NEBRASKA
OMAHA
ELECTRICAL TROUBLESHOOTING - JULY 24, 1997
SPONSORED BY THE NEBRASKA TURF IRRIGATION ASSOCIATION
HOSTED BY BH&L TURF IRRIGATION SUPPLY
KANSAS
HUTCHINSON
ELECTRICAL TROUBLESHOOTING - JULY 25, 1997
SPONSORED BY THE KANSAS IRRIGATION ASSOCIATION
CO-SPONSORED BY THE KANSAS ASSOCIATION OF NURSERYMEN
HOSTED BY BH&L TURF IRRIGATION SUPPLY
WICHITA
COMPREHENSIVE IRRIGATION CONTRACTING - SEPTEMBER 15, 1997
BASIC LANDSCAPE IRRIGATION DESIGN - DECEMBER 8-9, 1997
SPONSORED BY THE KANSAS IRRIGATION ASSOCIATION
HOSTED BY THE CITY OF WICHITA
THE IRRIGATION ASSOCIATION RESERVES THE RIGHT TO CANCEL ANY OR ALL
CLASSES AS NECESSARY.
*FOR GENERAL INFORMATION CONCERNING REGISTRATION FORMS AND INFORMATION
CONTACT:
LORI M. BROWN
EDUCATION MANAGER
PHONE: (703) 573-3551 FAX: (703) 573-1913
ADDITIONAL SITES AND DATES WILL BE FORTHCOMING
Date: Wed, 30 Apr 1997 16:25:37 -0500
From: "W. Bryan Smith" <wsmth@CLEMSON.EDU>
Subject: Replies on "lowerin pH by burning sulphur"
Here are the replies I have received to date on the "lowering water
pH by burning sulphur" question. I apologize if you get two
copies due to being subscribed to both Trickle-L and Irrigation-L.
Bryan
=================================
Date: Tue, 29 Apr 1997 09:02:04 -0700
To: wsmth@CLEMSON.EDU
From: "J.D. Oster" <oster@mail.ucr.edu>
Subject: Re: Lowering water pH by burning Sulphur???
X-PMFLAGS: 34078848 0
The sulphur dioxide generated by a sulphur burner is oxidized to
sulfate. In the process hydrogen is generated. I believe the end products of
the reaction are the same as if one adds sulphuric acid.
J.D.(Jim) Oster
Soil and Water Specialist and Adjunct Professor
Soil and Environmental Sciences
University of California
Riverside, CA.
FAX: 909 787-5522
VOICE: 909 787-5100
e-mail: Oster@mail.ucr.edu
http://esce.ucr.edu
From: "Said Amali (FWY)" <SaidAmali@KennedyJenks.com>
To: "W. Bryan Smith" <wsmth@CLEMSON.EDU>
Subject: RE: [IR-L] Lowering water pH by burning Sulphur???
Date: Tue, 29 Apr 1997 11:51:00 -0700
Bryan,
Can he add in ammonium sulfate or such acidifying fertilizer to his
irrigation water (bring down pH and add nitrogen at the same time) of
course it depends on the original water pH and whether the additional
nitrogen is beneficial - just a thought.
Said Amali
Soil Scientist
saidamali@kennedyjenks.com
=|===|===|===|===|===|===|===|===|===|===|=
W. Bryan Smith
Area Extension Agent - Irrigation / Water Quality
Clemson Extension Service
P.O. Box 160
Newberry, South Carolina 29108 USA
Office: 803 276-1091 FAX: 803 276-1095
Internet: wsmth@clemson.edu
=|===|===|===|===|===|===|===|===|===|===|=
All opinions are my own and not reflective of the
policies of Clemson University or the Cooperative
Extension Service.
Date: Thu, 1 May 1997 08:43:49 +1000
From: Tivi Theiveyanathan <Tivi@FFP.CSIRO.AU>
Subject: Positioning Neutron Moisture Meter access holes
Hi all
>From Canberra, Australia
We are planning to conduct an irrigated eucalypt tree plantation thinning
trial to estimate water use of a plantation at 4 different thinning regimes.
The plantation will be thinned from 1600 stems per ha to 800, 600, 400 and
200 stems per ha. Unfortunately the thinned plots will contain trees of
different diameters with non uniform spacings.
The plot is 30x60 m in size and the number of stems per plot will be 144,
108, 72 and 36. We are planning to install eight Neutron Moisture Meter
access tubes to 2m depth in each plot to monitor changes in soil moisture
between fortnights.
The irrigation system is micro sprinklers with a spacing of 6x4m. Trees
are six years of age.
The question is
Question: What method (statistical or empirical or best guess) can be used
to position these eight NMM access holes inorder to get an average soil
moisture content of the plot ?.
One way is to position the eight tubes vertically at different distances
from the base of trees of plot mean diameter (e.g, 0.5, 1.0, 2.0, 3.0, 4.0,
5.0, 6.0, 7.0 m) for the plot with 36 stems
Any comments please
Thanks
tivi
Date: Wed, 30 Apr 1997 17:12:41 -0700
From: Rodney Ruskin <geoflow1@SLIP.NET>
Subject: Chimney effect
At 02:39 AM 4/27/97 -0600, Goldberg wrote:
>Can anyone recommend a soil amendment/coating which will restrict the
>movement of water in a very loose sandy/silty (imported) topsoil?
>
>Rapid surfacing/chimneying in a drip irrigated wastewater drainfield might
>be
>prevented by the addition of an amendment which would fill pore spaces,
>give structure, and otherwise inhibit the upward movement of water in soil
>with
>very little structure. Thanks for the help.
>
>Rick Goldberg
>Drip-Tech Wastewater Systems
>
You could add peat moss which would give more pores but add structure and
lateral movement.
If your eruptions are scattered and sometimes move from spot to spot it is
quite possible that the Israeli emitter, which I understand you use, is
getting sand under the diaphragm and causing excess flow in individual emitters.
Regards,
Rodney Ruskin
geoflow1@slip.net
End of TRICKLE-L Digest - 29 Apr 1997 to 30 Apr 1997
****************************************************
>From owner-TRICKLE-L@crcvms.unl.edu Fri May 2 01:01 EDT 1997
Date: Fri, 02 May 1997 00:00:17 -0600
Subject: TRICKLE-L Digest - 30 Apr 1997 to 1 May 1997
There are 4 messages totalling 274 lines in this issue.
Topics of the day:
1. Positioning Neutron Moisture Meter/Other Moisture Measure Method
2. Positioning Neutron Moisture Meter access holes (2)
3. Economic irrigation application amounts ...
Date: Wed, 30 Apr 1997 22:09:41 -0700
From: Clem Wehner <cww@PACIFICCOAST.NET>
Subject: Re: Positioning Neutron Moisture Meter/Other Moisture Measure Method
Hello Tivi,
For your eucalypt trial, consider using the new Time Domain
Reflectometry (TDR) Moisture Measuring Instrument and Profiling Probes
now available from Environmental Sensors Inc., Victoria, BC, Canada.
I did a survey for these instruments and probes several years ago:
much faster, equally accurate and less expensive than the neutron
technique. No need to drill holes. There is documented experience
and confidence with TDR among soil scientists in Australia and elsewhere.
Suggest you get in touch with Mike Sly at Gabel Corp/Environmental
Sensors Inc., Victoria, BC, Canada: Fax: 250-479-1412,
Phone: 250-479-6588, E-Mail: Gabel@islandnet.com
Yours truly,
Clem Wehner C. Wehner & Associates
Marketing Consultants International
905 Gordon Street
Victoria, BC, Canada
V8W 3P9
Phone and Fax: 250-383-1959
E-mail: cww@pacificcoast.net
----------------------- 0 --------------------------
At 08:43 AM 5/1/97 +1000, you wrote:
>Hi all
>
>>From Canberra, Australia
>
>We are planning to conduct an irrigated eucalypt tree plantation thinning
>trial to estimate water use of a plantation at 4 different thinning regimes.
>The plantation will be thinned from 1600 stems per ha to 800, 600, 400 and
>200 stems per ha. Unfortunately the thinned plots will contain trees of
>different diameters with non uniform spacings.
>
>The plot is 30x60 m in size and the number of stems per plot will be 144,
>108, 72 and 36. We are planning to install eight Neutron Moisture Meter
>access tubes to 2m depth in each plot to monitor changes in soil moisture
>between fortnights.
>
>The irrigation system is micro sprinklers with a spacing of 6x4m. Trees
>are six years of age.
>
>The question is
>
>Question: What method (statistical or empirical or best guess) can be used
>to position these eight NMM access holes inorder to get an average soil
>moisture content of the plot ?.
>
>One way is to position the eight tubes vertically at different distances
>from the base of trees of plot mean diameter (e.g, 0.5, 1.0, 2.0, 3.0, 4.0,
>5.0, 6.0, 7.0 m) for the plot with 36 stems
>
>
>Any comments please
>
>Thanks
>
>tivi
Date: Thu, 1 May 1997 19:29:19 +1000
From: Hortech Services Pty Ltd <hortech@ATS.COM.AU>
Subject: Re: Positioning Neutron Moisture Meter access holes
Dear Tivi,
I have an EnviroSCAN system presently installed in a wastewater management
project investigating water use of Eucalyptus Robusta & Rhodes Grass. The
project also has installed Tensiometers, Gypsum Blocks, Neutron probe. The
EnviroSCAN is giving a far clearer picture of water use and extraction
patterns. The software allows for the comparison of site to site.
The researchers are seeing also the time saving advantages of EnviroSCAN vs
Neutron Probe.
I would suggest you look at using both technologies. The EnviroSCAN would
give you the ability to observe very quickly where the trees are extracting
moisture and then determine appropiate sites.
Say install numerous PVC access tubes across the plots in increasing
distance from the tree trunk. Place in eight tubes, say 1 m probes with
sensors at 10, 30, 60, 100 cm. Observe over a wetting and drying cycle to
see if the tree reacts either by :
1. Drying out at base first and thereafter increasing distance from the tree.
2. All areas at the same rate
3. All areas at once but at different rates ( eg base faster than extremeties ).
4. Is water use at depth mainly at the base and surface feeding outside.
5. There is full use by the tree at all depths and distances.
Move the EnviroSCAN system from plot to plot to see whats going on , Then
based on that info install your Neutron probe sites accordingly. As well as
reinstall the EnviroSCAN system with two sites in each of the plots, one at
the area of highest water use and one at the lowest.
The EnviroSCAN would help fill in the gaps between Neutron Probe readings.
I hope my idea helps in some way.
Regards
Peter
At 08:43 1/05/97 +1000, you wrote:
>Hi all
>
>>From Canberra, Australia
>
>We are planning to conduct an irrigated eucalypt tree plantation thinning
>trial to estimate water use of a plantation at 4 different thinning regimes.
>The plantation will be thinned from 1600 stems per ha to 800, 600, 400 and
>200 stems per ha. Unfortunately the thinned plots will contain trees of
>different diameters with non uniform spacings.
>
>The plot is 30x60 m in size and the number of stems per plot will be 144,
>108, 72 and 36. We are planning to install eight Neutron Moisture Meter
>access tubes to 2m depth in each plot to monitor changes in soil moisture
>between fortnights.
>
>The irrigation system is micro sprinklers with a spacing of 6x4m. Trees
>are six years of age.
>
>The question is
>
>Question: What method (statistical or empirical or best guess) can be used
>to position these eight NMM access holes inorder to get an average soil
>moisture content of the plot ?.
>
>One way is to position the eight tubes vertically at different distances
>from the base of trees of plot mean diameter (e.g, 0.5, 1.0, 2.0, 3.0, 4.0,
>5.0, 6.0, 7.0 m) for the plot with 36 stems
>
>
>Any comments please
>
>Thanks
>
>tivi
>
>
Peter Broomhall
Horticulural Consultant
Hortech Services Pty Ltd
a.c.n. 060 406 957
P.O. Box 370
Kallangur QLD 4503
Australia
P: +61 418 708 573
F: +61 7 3886 0389
hortech@ats.com.au
Date: Thu, 1 May 1997 16:21:24 -0600
From: Clint Shock <mesosu@PRIMENET.COM>
Subject: Re: Economic irrigation application amounts ...
Friends,
Within the discussion of deficit irrigation, a couple of topics that are
often ignored. Let me mention crop quality and real water savings.
With crops that are very sensitive to water stress, crop quality may be
sacrificed with slight deficit irrigation. Economic crop yield of
potatoes and onions decreases very rapidly with deficit irrigation at
this location because of quality (grade) loss.
Actual water savings can be limited if deficit irrigation really depends
on the depletion of subsoil moisture for economic returns.
Considerations of water time and place utility are important. For
example: If subsoil moisture is going to be lost anyway, the irrigation
strategy may be very different than where the subsoil moisture is
effectively an integral part of future supplies.
Clint
--
Dr. Clinton C. Shock
Malheur Experiment Station
Oregon State University
595 Onion Ave.
Ontario, Oregon 97914
telephone (541) 889-2174
Fax (541) 889-7831
http://www.primenet.com/~mesosu/index.html
Date: Thu, 1 May 1997 16:32:48 +0000
From: Blake Sanden <blsanden@UCDAVIS.EDU>
Subject: Re: Positioning Neutron Moisture Meter access holes
For siting neutron probe sites in micro irrigation you must ask:
1) Do I want to characterize the true average moisture content of the whole
field or (more importantly for production),
2) Do I want to maximize confidence in your irrigation scheduling and
available soil water.
If optimal irrigation is your goal and rainfall is NOT a major factor then
site your tubes at a distance from the emitter that will represent the
average application amount to the WETTED AREA only. Replicate this
configuration to allow for soil and tree rooting variability in a given
field or plot. For micro sprinklers this distance is about 1/2 the
distance from the emitter to the edge of the wetting pattern (profound,
eh?).
To characterize moisture distribution you might be able to get away with 4
tubes/tree/microsprink and then get 2 reps per plot but microsprinklers
have notorious rain shadows that may mean closer to the 8 tubes to
delineate the pattern for one tree, especially on sandy ground. Dave
Goldhammer did some good work on this years ago. Somebody have a ref?
Blake Sanden
Irrigation Management & Agronomy Farm Advisor, Kern County
1031 S Mt Vernon Ave
Bakersfield, CA 92307
805-868-6218
blsanden@ucdavis.edu
>Hi all
>
>>From Canberra, Australia
>
>We are planning to conduct an irrigated eucalypt tree plantation thinning
>trial to estimate water use of a plantation at 4 different thinning regimes.
>The plantation will be thinned from 1600 stems per ha to 800, 600, 400 and
>200 stems per ha. Unfortunately the thinned plots will contain trees of
>different diameters with non uniform spacings.
>
>The plot is 30x60 m in size and the number of stems per plot will be 144,
>108, 72 and 36. We are planning to install eight Neutron Moisture Meter
>access tubes to 2m depth in each plot to monitor changes in soil moisture
>between fortnights.
>
>The irrigation system is micro sprinklers with a spacing of 6x4m. Trees
>are six years of age.
>
>The question is
>
>Question: What method (statistical or empirical or best guess) can be used
>to position these eight NMM access holes inorder to get an average soil
>moisture content of the plot ?.
>
>One way is to position the eight tubes vertically at different distances
>from the base of trees of plot mean diameter (e.g, 0.5, 1.0, 2.0, 3.0, 4.0,
>5.0, 6.0, 7.0 m) for the plot with 36 stems
>
>
>Any comments please
>
>Thanks
>
>tii
End of TRICKLE-L Digest - 30 Apr 1997 to 1 May 1997
***************************************************
>From owner-TRICKLE-L@crcvms.unl.edu Tue May 6 01:04 EDT 1997
Date: Tue, 06 May 1997 00:03:05 -0600
Subject: TRICKLE-L Digest - 1 May 1997 to 5 May 1997
There are 2 messages totalling 89 lines in this issue.
Topics of the day:
1. Online article update (2)
Date: Mon, 5 May 1997 18:08:07 +0000
From: Richard Mead <rmead@CYBERGATE.COM>
Subject: Online article update
As the Internet explodes in popularity and use, so does agricultural,
horticultural and irrigation information on the Net. There are four new
on-line articles out of the Adams Trade Press-Green Net server that relate
to microirrigation. The first three articles are found in the newest issue
of the "Irrigation Journal" and the fourth article is from the newest issue
of "Landscape and Irrigation".
The on-line articles include, (with URL in parenthesis):
Chemigation a Viable, Efficient Alternative
(http://206.214.55.9/green/ij/html/497che.html)
Do Your Homework When Selecting Filtration Equipment
(http://206.214.55.9/green/ij/html/497do.html)
Evaluating Emission Uniformity for Efficient Microirrigation
(http://206.214.55.9/green/ij/html/497eva.html)
Drip Emitters: Irrigation That's Good to the Last Drop
(http://206.214.55.9/green/li/html/497drip.html)
These articles will be at their affiliated URLs until the next issues of
the Irrigation Journal or Landscape and Irrigation are published. After
that, the URLs will be changed and the articles will be in the editorial
archives.
Feel free to surf on by, read the articles and post your opinions here on
Trickle-L. Looking forward to potential comments!
Richard Mead
Trickle-L owner/manager
http://www.cybergate.com/~rmead
Date: Mon, 5 May 1997 12:12:57 -0700
From: Bret Scaliter <bscaliter@MAIL.AIP.COM>
Subject: Re: Online article update
Richard:
Thanks for the plug!
Bret
Richard Mead wrote:
>
> As the Internet explodes in popularity and use, so does agricultural,
> horticultural and irrigation information on the Net. There are four new
> on-line articles out of the Adams Trade Press-Green Net server that relate
> to microirrigation. The first three articles are found in the newest issue
> of the "Irrigation Journal" and the fourth article is from the newest issue
> of "Landscape and Irrigation".
>
> The on-line articles include, (with URL in parenthesis):
>
> Chemigation a Viable, Efficient Alternative
> (http://206.214.55.9/green/ij/html/497che.html)
>
> Do Your Homework When Selecting Filtration Equipment
> (http://206.214.55.9/green/ij/html/497do.html)
>
> Evaluating Emission Uniformity for Efficient Microirrigation
> (http://206.214.55.9/green/ij/html/497eva.html)
>
> Drip Emitters: Irrigation That's Good to the Last Drop
> (http://206.214.55.9/green/li/html/497drip.html)
>
> These articles will be at their affiliated URLs until the next issues of
> the Irrigation Journal or Landscape and Irrigation are published. After
> that, the URLs will be changed and the articles will be in the editorial
> archives.
>
> Feel free to surf on by, read the articles and post your opinions here on
> Trickle-L. Looking forward to potential comments!
>
> Richard Mead
> Trickle-L owner/manager
> http://www.cybergate.com/~rmead
End of TRICKLE-L Digest - 1 May 1997 to 5 May 1997
**************************************************
>From owner-TRICKLE-L@crcvms.unl.edu Wed May 7 02:22 EDT 1997
Date: Wed, 07 May 1997 00:03:13 -0600
Subject: TRICKLE-L Digest - 5 May 1997 to 6 May 1997
There is one message totalling 49 lines in this issue.
Topics of the day:
1. Online article update
Date: Tue, 6 May 1997 09:20:16 -0700
From: Bret Scaliter <bscaliter@MAIL.AIP.COM>
Subject: Re: Online article update
Richard,
Thanks for the plug!
Bret
Richard Mead wrote:
>
> As the Internet explodes in popularity and use, so does agricultural,
> horticultural and irrigation information on the Net. There are four new
> on-line articles out of the Adams Trade Press-Green Net server that relate
> to microirrigation. The first three articles are found in the newest issue
> of the "Irrigation Journal" and the fourth article is from the newest issue
> of "Landscape and Irrigation".
>
> The on-line articles include, (with URL in parenthesis):
>
> Chemigation a Viable, Efficient Alternative
> (http://206.214.55.9/green/ij/html/497che.html)
>
> Do Your Homework When Selecting Filtration Equipment
> (http://206.214.55.9/green/ij/html/497do.html)
>
> Evaluating Emission Uniformity for Efficient Microirrigation
> (http://206.214.55.9/green/ij/html/497eva.html)
>
> Drip Emitters: Irrigation That's Good to the Last Drop
> (http://206.214.55.9/green/li/html/497drip.html)
>
> These articles will be at their affiliated URLs until the next issues of
> the Irrigation Journal or Landscape and Irrigation are published. After
> that, the URLs will be changed and the articles will be in the editorial
> archives.
>
> Feel free to surf on by, read the articles and post your opinions here on
> Trickle-L. Looking forward to potential comments!
>
> Richard Mead
> Trickle-L owner/manager
> http://www.cybergate.com/~rmead
End of TRICKLE-L Digest - 5 May 1997 to 6 May 1997
**************************************************
>From owner-TRICKLE-L@crcvms.unl.edu Thu May 8 01:04 EDT 1997
Date: Thu, 08 May 1997 00:02:46 -0600
Subject: TRICKLE-L Digest - 6 May 1997 to 7 May 1997
There is one message totalling 55 lines in this issue.
Topics of the day:
1. ARS-Bushland Newsletter
Date: Wed, 7 May 1997 11:29:50 -0500
From: "Terry A. Howell" <tahowell@AG.GOV>
Subject: ARS-Bushland Newsletter
5/7/97
Trickle-L:
The Water Management Research Unit of the USDA-ARS Conservation and
Production Research Laboratory at Bushland announces its new newsletter,
the "Wetting Front." The newsletter is planned as a semi-annual update
about our research program and to foster technology transfer with industry
and the agricultural community and to improve our communication with our
stakeholder and partner agencies. The "snail mail" version should be going
out late this week or early next week. If you are interested in a
"hardcopy" subscription, send an e-mail subscription request (include your
name, title, company/agency, department/division, address, city, state, zip
code, country if not USA, and optional information of phone and fax numbers
and your e-mail address) to Mrs. Carole Perryman (mailto:cperryma@ag.gov).
The almost "tree less" electronic version can be read on-line at the URL
http://www.net.usda.gov/cprl/wmru/wfront/wf1-1.htm .
This inaugural issue includes feature articles on "Those Dalhart Lights" by
myself, "Texas High Plains Irrigation" by me and Jack Musick, and "Where's
the Water?" by Steve Evett. Other information includes awards and
recognitions, grant news, personnel news, technology transfer news,
publications, and upcoming events and presentations by our research unit
staff.
I would also like to alert you to our May 22 Spring Field Day at Bushland
(the program is found at the URL http://www.net.usda.gov/cprl/news.htm ).
You are welcome to come learn more about our research programs and to enjoy
a special day devoted mostly to wheat but with an excellent program of
interest to the agricultural community (not to mention the FREE lunch
sponsored by the Texas Wheat Producers Board).
Thank you.
Terry Howell
*********************************************************************
* Terry A. Howell, Ph.D., P.E. (806) 356-5746 (voice) *
* USDA-ARS (806) 356-5750 (fax) *
* P.O. Drawer 10 tahowell@ag.gov (e-mail) *
* 2300 Experiment Station Rd. (shipping) *
* Bushland, TX 79012 http://www.net.usda.gov/cprl/ (Internet) *
* ........ Make every drop count! Whose water is it? ....... *
*********************************************************************
End of TRICKLE-L Digest - 6 May 1997 to 7 May 1997
**************************************************
>From owner-TRICKLE-L@crcvms.unl.edu Sat May 10 01:03 EDT 1997
Date: Sat, 10 May 1997 00:02:27 -0600
Subject: TRICKLE-L Digest - 7 May 1997 to 9 May 1997
There are 2 messages totalling 53 lines in this issue.
Topics of the day:
1. floriculture water....
2. subsurface drip for cover crops
Date: Fri, 9 May 1997 09:07:08 -0700
From: Dean Reynolds <dreynold@CD-ESO.WATER.CA.GOV>
Subject: floriculture water....
Hi All,
I am trying to determine average water use for nurserys... in California
Any information you may have regarding water use in "green houses" will
be greatly appreciated. I am looking for total water use.. i.e.
irrigation, cleaning, etc.
Also would like information on water requirements for plants grown
"outdoors" at nurseries..
Thank You,
dean
**************************************************
Dean Reynolds
Associate Land and Water Use Analyst
California Department of Water Resources
3251 S Street
Sacramento, CA 95816 USA
Phone: 916-227-7638
Fax: 916-227-7600
email: dreynold@water.ca.gov
**************************************************
Date: Fri, 9 May 1997 19:48:36 -0600
From: Alfonso Cobo Frade <acobo@ACNET.NET>
Subject: subsurface drip for cover crops
I am Alfonso Cobo and I would like to know if it is posible to place
subsurface drip irrigation on a cover crop like alfalfa.
How long can last the irrigation lines buried without moving them?
How deep cuold I place the lines under the ground? Do I need sprinkles to
make seeds germinate or the water can move up in a clay soil?
Thanks for your comments
I will apreciate them.
End of TRICKLE-L Digest - 7 May 1997 to 9 May 1997
**************************************************
>From owner-TRICKLE-L@crcvms.unl.edu Sat May 10 18:33 EDT 1997
Date: Sat, 10 May 1997 17:26:30 -0600
Subject: TRICKLE-L Digest - 9 May 1997 to 10 May 1997 - Special issue
There are 3 messages totalling 16670 lines in this issue.
Topics in this special issue:
1. subsurface drip for cover crops
2. subsurface drip for cover crops -Reply
3. Economic returns on SDI cotton-16 year perspective
Date: Sat, 10 May 1997 08:27:34 -0700
From: Rodney Ruskin <geoflow1@SLIP.NET>
Subject: Re: subsurface drip for cover crops
At 07:48 PM 5/9/97 -0600, Alfonso Cobo Frade wrote:
>I am Alfonso Cobo and I would like to know if it is posible to place
>subsurface drip irrigation on a cover crop like alfalfa.
>
>How long can last the irrigation lines buried without moving them?
>
>How deep cuold I place the lines under the ground? Do I need sprinkles to
>make seeds germinate or the water can move up in a clay soil?
>
>Thanks for your comments
>I will apreciate them.
Yes - alfalfa certainly can be grown with SDI.
The line can stay down for at least 20 years.
On clay soils it looks like 24" may be desireable.
Yes sprinklers are needed to germinate, but this should only be once every 7
to 10 years.
Studies have been done by the USDA and others. If you refer to
http://www.rootguard-geoflow.com you will find a copy of the USDA report
Subsurface Drip:
Improving Alfalfa Irrigation in the West
By Bob Hutmacher, Richard Mead and Peter Shouse
- our leader Richard Mead is an author of the study so he can, and I am sure
will, answer in great detail to any questions you may have.
If you would like more information after you have seen the website
http://www.rootguard-geoflow.com please send me your snail-mail address and
'phone number.
Rodney Ruskin
geoflow1@slip.net
Date: Sat, 10 May 1997 10:36:14 -0500
From: "Joseph C. Henggeler" <j-henggeler@TAMU.EDU>
Subject: subsurface drip for cover crops -Reply
Regarding Alfonso Cobo's question:
-- is possible to place subsurface drip irrigation on a cover crop like
alfalfa.
-- how long can (it) last
-- how deep
-- germination???
*********************
Alfonso,
Sub-surface drip irrigation (SDI) of alfalfa & other forages is being done
at these following locations (1) USDA/ARS in Brawley, CA; (2) New
Mexico State Univ in Artesia; (3) Univ of Nevada at Reno; (4) Israel. I
believe that discussion regarding your questions can be found in the
topic-sorted archives of Trickle-L that Richard Mead maintains.
Besides germination problems, rodents can also be a problem. When
these 2 problems are controlled, SDI does excellent on alfalfa, and yields
of 1.15 to 1.30 of traditional irrigation methods are reported in the
literature.
Joe Henggeler
Ft. Stockton, TX
Date: Sat, 10 May 1997 17:01:53 -0500
From: "Joseph C. Henggeler" <j-henggeler@TAMU.EDU>
Subject: Economic returns on SDI cotton-16 year perspective
[...]
TRICKLE-L members,
You may be interested in a case study that looked at the last 16 years of
cotton production on a single farm in an arid part of West Texas; 8 years
ago it started slowly installing SDI. The report outlines the economic
impact stemming from SDI. In short:
* there was a 450% return on all associated SDI dollars
* total farm production increased by about 44%
* even with SDI, rainfall still plays a role in final yield
* before SDI 36 bales of cotton were produced from every inch of
seasonal rainfall; after SDI, 54 bales were produced per inch
* BT cotton worked well with SDI; last year 2.4 bales per acre were
made over the entire farm, and 2.7 bales where the cotton was not hailed
on and re-planted
* the irrigation capacity is only 1.4 GPM/Ac (0.07 in/day [1.9 mm/day])
* the phenomenal return is due to the fact that in this area all water
resources (rain & ground water) are very limited
A copy of the report is attached; if you can't pull it down, send me a
message directly.
Joe Henggeler
Ft. Stockton, TX
[Archivist Note: The 1.25 Mbyte MIME-encoded Word document has been deleted
in self defense. If you need a copy of it, contact the author.]
End of TRICKLE-L Digest - 9 May 1997 to 10 May 1997 - Special issue
*******************************************************************
>From owner-TRICKLE-L@crcvms.unl.edu Mon May 12 01:03 EDT 1997
Date: Mon, 12 May 1997 00:01:47 -0600
Subject: TRICKLE-L Digest - 10 May 1997 to 11 May 1997
There are 3 messages totalling 95 lines in this issue.
Topics of the day:
1. Economic returns on SDI cotton-16 year perspective (3)
Date: Sun, 11 May 1997 00:40:10 -0700
From: Dad <grapegrower@EARTHLINK.NET>
Subject: Re: Economic returns on SDI cotton-16 year perspective
I personally think a 1.2 mg file is out of line to send to all on the
list. Can't you make a list of those who want the file and send it to
only them?? i belong to many lists and none allow that.
---------------------------------------------------------------------------
-Robert Carian- Check out my website!
senorjuan@earthlink.net
RTCarian@aol.com http://home.earthlink.net/~senorjuan
Date: Sun, 11 May 1997 18:57:35 -0400
From: Jon Givens <ami@WATER.NET>
Subject: Re: Economic returns on SDI cotton-16 year perspective
I concur, My mail server(like many) has a file size limitation of 1.1 megs
to prevent e-mail bombings unless I make special preperations. If they
suspect a mail bomb my mail service could be interuptted for up to three
days. If that can happen to me, it can happen to us all.
----------
> From: Dad <grapegrower@EARTHLINK.NET>
> To: TRICKLE-L@crcvms.unl.edu
> Subject: Re: Economic returns on SDI cotton-16 year perspective
> Date: Sunday, May 11, 1997 3:40 AM
>
> I personally think a 1.2 mg file is out of line to send to all on the
> list. Can't you make a list of those who want the file and send it to
> only them?? i belong to many lists and none allow that.
>
>
---------------------------------------------------------------------------
>
> -Robert Carian- Check out my website!
> senorjuan@earthlink.net
> RTCarian@aol.com http://home.earthlink.net/~senorjuan
Date: Sun, 11 May 1997 22:45:52 -0400
From: "Kenneth E. Bannister" <kenbannister@GROUNDWATER.COM>
Subject: Re: Economic returns on SDI cotton-16 year perspective
I think an apology is in order from Mr. Henggeler. I too was more than a
little inconvenienced by his foolishness.
Ken Bannister
>I concur, My mail server(like many) has a file size limitation of 1.1 megs
>to prevent e-mail bombings unless I make special preperations. If they
>suspect a mail bomb my mail service could be interuptted for up to three
>days. If that can happen to me, it can happen to us all.
>
>----------
>> From: Dad <grapegrower@EARTHLINK.NET>
>> To: TRICKLE-L@crcvms.unl.edu
>> Subject: Re: Economic returns on SDI cotton-16 year perspective
>> Date: Sunday, May 11, 1997 3:40 AM
>>
>> I personally think a 1.2 mg file is out of line to send to all on the
>> list. Can't you make a list of those who want the file and send it to
>> only them?? i belong to many lists and none allow that.
>>
>>
>---------------------------------------------------------------------------
>>
>> -Robert Carian- Check out my website!
>> senorjuan@earthlink.net
>> RTCarian@aol.com http://home.earthlink.net/~senorjuan
>
>
--------------------------------------------------------------
Kenneth E. Bannister
BANNISTER RESEARCH & CONSULTING
RR1 Box 292 Bridport, Vermont USA 05734
http://www.groundwater.com kenbannister@groundwater.com
Life can only be understood backwards, but it must be lived forwards.
Soren Kierkegaard
--------------------------------------------------------------
End of TRICKLE-L Digest - 10 May 1997 to 11 May 1997
****************************************************
>From owner-TRICKLE-L@crcvms.unl.edu Tue May 13 01:03 EDT 1997
Date: Tue, 13 May 1997 00:02:29 -0600
Subject: TRICKLE-L Digest - 11 May 1997 to 12 May 1997
There are 6 messages totalling 302 lines in this issue.
Topics of the day:
1. Economic returns on SDI cotton-16 year perspective (3)
2. More Help and Less Criticism
3. Learning experience
4. Notice from Trickle-L owner
Date: Mon, 12 May 1997 08:22:19 -0700
From: Dean Reynolds <dreynold@CD-ESO.WATER.CA.GOV>
Subject: Re: Economic returns on SDI cotton-16 year perspective
Gee Dad.. I didn't even notice.. is it because I have a T1 line... would
I have known why you object if I had gotton it at home over my modem?
dean
Dad wrote:
>
> I personally think a 1.2 mg file is out of line to send to all on the
> list. Can't you make a list of those who want the file and send it to
> only them?? i belong to many lists and none allow that.
>
> ---------------------------------------------------------------------------
>
> -Robert Carian- Check out my website!
> senorjuan@earthlink.net
> RTCarian@aol.com http://home.earthlink.net/~senorjuan
--
**************************************************
Dean Reynolds
Associate Land and Water Use Analyst
California Department of Water Resources
3251 S Street
Sacramento, CA 95816 USA
Phone: 916-227-7638
Fax: 916-227-7600
email: dreynold@water.ca.gov
**************************************************
Date: Mon, 12 May 1997 10:53:16 -0500
From: "Ted W. Tyson" <ttyson@ACESAG.AUBURN.EDU>
Subject: Re: Economic returns on SDI cotton-16 year perspective
It would be nice if all of those who know so much more than others about
e-mail would lighten up on Mr. Henggeler. His intentions were honorable
and I appreciate his willingness to share pertinent information. twt
On Sun, 11 May 1997, Kenneth E. Bannister wrote:
> I think an apology is in order from Mr. Henggeler. I too was more than a
> little inconvenienced by his foolishness.
>
> Ken Bannister
>
> >I concur, My mail server(like many) has a file size limitation of 1.1 megs
> >to prevent e-mail bombings unless I make special preperations. If they
> >suspect a mail bomb my mail service could be interuptted for up to three
> >days. If that can happen to me, it can happen to us all.
> >
> >----------
> >> From: Dad <grapegrower@EARTHLINK.NET>
> >> To: TRICKLE-L@crcvms.unl.edu
> >> Subject: Re: Economic returns on SDI cotton-16 year perspective
> >> Date: Sunday, May 11, 1997 3:40 AM
> >>
> >> I personally think a 1.2 mg file is out of line to send to all on the
> >> list. Can't you make a list of those who want the file and send it to
> >> only them?? i belong to many lists and none allow that.
> >>
> >>
> >---------------------------------------------------------------------------
> >>
> >> -Robert Carian- Check out my website!
> >> senorjuan@earthlink.net
> >> RTCarian@aol.com http://home.earthlink.net/~senorjuan
> >
> >
> --------------------------------------------------------------
> Kenneth E. Bannister
> BANNISTER RESEARCH & CONSULTING
> RR1 Box 292 Bridport, Vermont USA 05734
> http://www.groundwater.com kenbannister@groundwater.com
>
> Life can only be understood backwards, but it must be lived forwards.
> Soren Kierkegaard
> --------------------------------------------------------------
>
Ted W. Tyson
Extension Ag Eng & Assoc Prof
(334)844-3542 (FAX 334 844-3530)
224 Ag Engineering
Auburn University, AL 36849-5626
Date: Mon, 12 May 1997 11:43:23 -0500
From: James Prochaska <jnmtexas@STARTEL.NET>
Subject: Re: More Help and Less Criticism
Ted W. Tyson wrote:
>
> It would be nice if all of those who know so much more than others about
> e-mail would lighten up on Mr. Henggeler. His intentions were honorable
> and I appreciate his willingness to share pertinent information. twt
>
>
> Ted W. Tyson
> Extension Ag Eng & Assoc Prof
> (334)844-3542 (FAX 334 844-3530)
> 224 Ag Engineering
> Auburn University, AL 36849-5626
Thank you Ted:
Those of us who are basically new to lists and the internet appreciate a
little help and coaching when it comes to "how its done". Joe Henggeler
was trying to help all of us who read and comment on the list, so why
did he get blasted. Trickle-L is all about helping and getting the word
out. If we all have to start watching how we do something or write
something, then we will cease to share with each other, and that would
be a tragedy. Hang in there Joe, I appreciate the info.
Jim Prochaska
JNM Technologies, Inc.
Date: Mon, 12 May 1997 12:13:59 -0500
From: "Joseph C. Henggeler" <j-henggeler@TAMU.EDU>
Subject: Learning experience
Ted & James,
I appreciate the kind words about my recent faux pas. I have directly
e-mailed all who rightly brought the problem to my attention with my
apologies, and all have been gracious in accepting them.
Live and learn.
Joe Henggeler
Date: Mon, 12 May 1997 14:13:06 -0700
From: Richard Soppe <rwsoppe@UCDAVIS.EDU>
Subject: Notice from Trickle-L owner
Dear Trickle-L members:
As Trickle-L manager/owner, I have not been able to access Trickle-L
postings for the past 5 days. My Internet Service Provider account
associated with the Trickle-L ownership email address has been down (too
long). Hopefully they will get their act together very soon! Please be
patient if you have tried to contact me about problems on Trickle-L.
I also understand through the grapevine that someone has sent a 1-Megabyte
report to the list. While the intention is admirable to share such detailed
information, it clogs the system of a list server. I will have to attach an
addedum stating not to do this to my welcome statements for future
subscribers. My suggestion to the individual who sent this message is to
send to information to me first* and I could put it on the Microirrigation
Forum web site for viewing; one-meg files are just too big for an email
discussion list.
I am looking forward to future postings on Trickle-L. Being out of the loop
(even for 1 day) is very discouraging!
Sincerely,
Richard Mead
Trickle-L owner
*please send any long files to rmead@cybergate.com, AFTER I get back on line.
Date: Tue, 13 May 1997 09:53:18 +1000
From: Evan Christen <evan@GRIFFITH.DWR.CSIRO.AU>
Subject: Re: Economic returns on SDI cotton-16 year perspective
Hi everyone
I am fortunate not to have the difficulties others have had regarding file sizes and found Joes' report most interesting, I wouldn't want to put people off posting such reports, I find that having such reports in electronic form most useful, as I get requests for information I can forward articles or extract relevant parts very easily.
Richard, could we perhaps state that there needs to be a warning if there is a large file attached to a posting, so that those whose system can't handle it can reject it, or am I misunderstanding the problem. Obviously putting the document on the web is a good alternative, however I seem to always have difficulty when I try to extract such information in that the formatting and graphics goes haywire.
Best regards
Evan Christen
At 22:45 11/05/97 -0400, you wrote:
>I think an apology is in order from Mr. Henggeler. I too was more than a
>little inconvenienced by his foolishness.
>
>Ken Bannister
>
>>I concur, My mail server(like many) has a file size limitation of 1.1 megs
>>to prevent e-mail bombings unless I make special preperations. If they
>>suspect a mail bomb my mail service could be interuptted for up to three
>>days. If that can happen to me, it can happen to us all.
>>
>>----------
>>> From: Dad <<grapegrower@EARTHLINK.NET>
>>> To: TRICKLE-L@crcvms.unl.edu
>>> Subject: Re: Economic returns on SDI cotton-16 year perspective
>>> Date: Sunday, May 11, 1997 3:40 AM
>>>
>>> I personally think a 1.2 mg file is out of line to send to all on the
>>> list. Can't you make a list of those who want the file and send it to
>>> only them?? i belong to many lists and none allow that.
>>>
>>>
>>---------------------------------------------------------------------------
>>>
>>> -Robert Carian- Check out my website!
>>> senorjuan@earthlink.net
>>> RTCarian@aol.com http://home.earthlink.net/~senorjuan
>>
>>
>--------------------------------------------------------------
> Kenneth E. Bannister
> BANNISTER RESEARCH & CONSULTING
> RR1 Box 292 Bridport, Vermont USA 05734
> http://www.groundwater.com kenbannister@groundwater.com
>
>Life can only be understood backwards, but it must be lived forwards.
> Soren Kierkegaard
>--------------------------------------------------------------
>
<smaller>-------------------------------------------------------------------------------------------------------------
<bold>Evan Christen, Ph.D. </bold>Phone: # 61 69 601586
Irrigation and drainage engineer (Research) Fax: # 61 69 601600
CSIRO Land and Water Email: evanch@griffith.dwr.csiro.au
GRIFFITH NSW 2680 Postal: PMB 3, Griffith, NSW, 2680
AUSTRALIA Australia
------------------------------------------------------------------------------------------------------------</smaller>
End of TRICKLE-L Digest - 11 May 1997 to 12 May 1997
****************************************************
>From owner-TRICKLE-L@crcvms.unl.edu Wed May 14 01:02 EDT 1997
Date: Wed, 14 May 1997 00:00:54 -0600
Subject: TRICKLE-L Digest - 12 May 1997 to 13 May 1997
There are 9 messages totalling 410 lines in this issue.
Topics of the day:
1. More Help and Less Criticism
2. Joe's Post
3. SUBSURFACE IRRIGATION (2)
4. Irr success stories or uses of appropriate technology.
5. Flame Wars Are Not All Bad
6. Potential Articles/Authors
7. Water to Minitubers (2)
Date: Tue, 13 May 1997 01:42:29 -0400
From: Jon Givens <ami@WATER.NET>
Subject: Re: More Help and Less Criticism
I truly understand where you are coming from, however, I believe we all
have a responsibilty to EACH OTHER to learn about the medium of
communication we are using here. True, it's not the same as drivinga car
down the road after only briefing through the manual and filling the gas
tank. It is however, a contention that the knowledgeable should not lose
access to their ability to receive this information because of one persons
reckless(and I use this term losely) widely unaccepted use of this list
serve. Correct me if I am wrong but I do not think he was exactly flamed,
nor are you at this time, but more so a genuine feeling voiced by more than
one person. I too think people should be cut slack, and his heart was in
the wrong place, I think it's just more that several people wondered what
was taking their 33.6 modem so darned long to down load e-mail.(btw: many
ISP's use dedicated e-mail lines with 10-15 minute connect time limits)
to all
Jon
----------
> From: James Prochaska <jnmtexas@STARTEL.NET>
> To: TRICKLE-L@crcvms.unl.edu
> Subject: Re: More Help and Less Criticism
> Date: Monday, May 12, 1997 12:43 PM
>
> Ted W. Tyson wrote:
> >
> > It would be nice if all of those who know so much more than others
about
> > e-mail would lighten up on Mr. Henggeler. His intentions were honorable
> > and I appreciate his willingness to share pertinent information. twt
> >
> >
> > Ted W. Tyson
> > Extension Ag Eng & Assoc Prof
> > (334)844-3542 (FAX 334 844-3530)
> > 224 Ag Engineering
> > Auburn University, AL 36849-5626
Date: Tue, 13 May 1997 09:04:03 -0500
From: "Terry A. Howell" <tahowell@AG.GOV>
Subject: Joe's Post
5/13/97
Trickle-L and Joe:
I was a little ticked too yesterday when my mail program crashed twice
trying to download Joe's post and tied me up for over an hour until
everything finally downloaded and cleaned up. But what is frustrating is
that Joe's message came into me as a bunch of junk which I can't unencode.
I never have trouble with binary attachments in regular mail, just with
list mail (anybody know why let me know). I do get trickle-L in the
"digest" form.
Joe it would have been far better to send your file to Guy Fipps to post on
the AgEn server at College Station. Then you could post a message in
Trickle-L with the path to the file. It would have been nice to have the
file in a WP and a Zip format too for those, like me, on modems.
I know Joe and know he did not intentionally mean to clog up our stuff. I
was thinking about firing off a "hot" reply too, but then I saw it was Joe
so I just simmered.
Terry
*********************************************************************
* Terry A. Howell, Ph.D., P.E. (806) 356-5746 (voice) *
* USDA-ARS (806) 356-5750 (fax) *
* P.O. Drawer 10 tahowell@ag.gov (e-mail) *
* 2300 Experiment Station Rd. (shipping) *
* Bushland, TX 79012 http://www.net.usda.gov/cprl/ (Internet) *
* ........ Make every drop count! Whose water is it? ....... *
*********************************************************************
Date: Tue, 13 May 1997 11:55:36 -0700
From: "Vernon C. Smith" <vsmith@FL.NRCS.USDA.GOV>
Subject: SUBSURFACE IRRIGATION
Has anyone developed a standard and specification for "subsurface
irrigation"? In Florida we are defining a subsurface irrigation
system as one that supplies water directly to the root zone of crops in
well drained soils. For example: buried drip or inline emitters.
If anyone has a standard or has covered this situation in other
standards we would appreciate it if you would e-mail or fax it to
me at 352-338-9578.
Vernon Smith, Agricultural Engineer
USDA, NRCS, Gainesville, FL
Date: Tue, 13 May 1997 12:37:16 -0500
From: Freddie Lamm <FLamm@OZNET.KSU.EDU>
Subject: Re: SUBSURFACE IRRIGATION
Vernon Smith wrote:
Has anyone developed a standard and specification for "subsurface
irrigation"? In Florida we are defining a subsurface irrigation
system as one that supplies water directly to the root zone of crops in
well drained soils. For example: buried drip or inline emitters.
If anyone has a standard or has covered this situation in other
standards we would appreciate it if you would e-mail or fax it to
me at 352-338-9578.
Freddie Lamm replied: Be careful with your terminology. There is
also the term subirrigation and of course subsurface drip irrigation
(SDI). They are not the same. However as I read your definition
above, I think either could fit your definition in the second
sentence. So, that definition is too loose because subirrigation
and SDI are worlds apart in many respects. I would suggest you use
SDI or subsurface drip irrigation and not create another vague term.
There's already enough confusion in the literature about drip,
trickle, micro-irrigation, micro irrigation and microirrigation.
I am confident that neither ISO or ASAE have any standards or
practices **SPECIFIC** to SDI, although they do have practices
related to microirrigation (ie ASAE EP-458 and ASAE EP-405). It
would depend on your needs as to whether these would be inclusive
enough.
At KSU, we (along with other collaborators in other states) have put
together some ideas from time to time about what we think SDI should
be defined as in our region (USA Central Great
Plains). These papers are not really in published format, as they
are more dealing with concepts. NONE OF THESE ARE STEP BY STEP
DESIGN MANUALS. I can send you a copy if you would
like. The titles have been shared before on Trickle-L, I believe.
They are entitled:
Design and Management Considerations for Subsurface Drip Irrigation
Systems. 1994, with revisions in 1997.
Authors: Lamm, Rogers, and Spurgeon
Installation Issues for SDI Systems.
1995.
In Proceedings of 16th annual IA conference, Phoenix Arizona.
Authors: Lamm, Clark, Yitayew, Schoneman, Mead, and Schneider.
Design and Installation of a Drip Irrigation for Research Purposes
1990.
ASAE Paper 902530.
Authors: Lamm, Manges, Rogers, Spurgeon, and Farmer
There are also some good publications on drip irrigation and SDI from
California, one each from CIT, UC-Davis, and IRTC.
Each of the listed publications has strengths and weaknesses in my
opinion, including my own.
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: Tue, 13 May 1997 13:15:16 -0500
From: Freddie Lamm <FLamm@OZNET.KSU.EDU>
Subject: Irr success stories or uses of appropriate technology.
Trickle-L Members:
Before most of us in the northern hemisphere get really busy with
irrigation for the summer season, I could use your help.
IF YOU CHOOSE TO RESPOND,
RESPOND DIRECTLY TO ME,
TO AVOID CLUTTERING TRICKLE-L
My address is flamm@oznet.ksu.edu or Fax 913-462-6281.
I will try to summarize significant responses to Trickle-L
I am the current chair of the IA Agricultural Irrigation Division.
We have tentatively accepted as our mission
"To inform the public about the importance of agricultural irrigation,
and to help the agricultural irrigation community to be better
stewards of our natural resources and to enhance the public image of
irrigated agriculture."
As part of our efforts, I am periodically writing a column in the
IA's Irrigation Business and Technology magazine entitled, "Lets
talk about Agricultural Irrigation." The first installment was in
Feb 97 and another will be in June issue. The installments will
vary considerably in topic, but I would like to write one dealing
with irrigation success stories and perhaps later on the use of
appropriate technology.
An IRRIGATION SUCCESS STORY is a story about where irrigation helped
to stabilize production; personal, community, or regional
economics; etc. **OR** where irrigation had a significant positive or enhancing
effect on the environment. I am not really looking for product
claims, I am looking for generic but verifiable stories that can
enhance our industry's image in the public. For example, in the
Great Plains region, irrigation has been shown to have a great
influence on stability of rural communities. As another example,
some ephemeral streams now have longer flow periods (advantageous to
wildlife) due to irrigation return flows.
An APPROPRIATE TECHNOLOGY STORY is where the use of one
technology method over another was advantageous because of cost;
effectiveness, simplicity, foolproofness, or etc. The appropriate
technology could be less or more complex, less or more costly. It
depends. An example **MIGHT BE** use of a washtub as an evaporation
pan instead of a automated weather data system for scheduling
irrigation. Obviously, the word **appropriate** might mean the opposite
is true.
I would appreciate any help you can give in identifying ideas. I
know there are a lot of stories out there, so please understand I
can't write about them all, and I may not even be able respond to you
personally. To avoid credibility problems, I need to be able to
verify the stories through previous reports, or through the use of
your name or some other means.
Thanks in advance.
Freddie
*
-------------------------------------------------------------------
Freddie Lamm *
Research Agricultural Engineer *** o
KSU Northwest Research-Extension Center ***** /|\
105 Experiment Farm Road *******\\
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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: Tue, 13 May 1997 14:51:54 -0400
From: "Craig A. Storlie" <storlie@AESOP.RUTGERS.EDU>
Subject: Flame Wars Are Not All Bad
Joe Henggeler's recent mishap has caused me to reflect on my email list
"mistake". As some of you are aware, my postings never/sometimes/always
(it depends on who you are) contain mysterious attachments that are
unreadable. I apologize for the distress it has caused.
As I explained to some of you, I have no idea why these problems
exist. My on-campus gurus guessed that it was related to the
gliche-filled and very early version of MS Exchange I was running and
was complicated by my access via modem over noisy lines. To this day, I
have no concrete answer or solution.
Hopefully, I have found a way around the problem. I dumped the MS
software and installed Netscape. PLEASE LET ME KNOW if the problem
still exists! I estimate that only about 10% got the garbage, but I
wonder if some of you were just very polite?
This leads me to my comment about Joe's attachment. I also lost some
time and cursed the computer gods over the lock-ups I experienced. But
the inconvienence was minor and I LEARNED SOMETHING IMPORTANT. I wonder
if those who "flamed" Joe know him either personally or professionally?
OK - we've been warned. Next one to goof gets made into organic soup
for the drip clogging test.
Craig Storlie
Rutgers university
Date: Tue, 13 May 1997 15:23:11 -0700
From: Bret Scaliter <bscaliter@MAIL.AIP.COM>
Subject: Potential Articles/Authors
Trickle-L members:
I am once again soliciting articles for the July/August "Irrigation
Journal." Two topics that I am currently pursuing are:
1) Innovations in Drip Tape
2) Planning a Microsprinkler System
As the "Irrigation Journal's" readership is primarily composed of
growers/farmers, the slant on articles is agricultural. If you would
like to submit/write an article on either of these topics or have a
lead on someone knowledgeable about the topic, please contact me as
soon as possible. The deadline is June 18.
Thank you and I look forward to your response.
Bret Scaliter, Irrigation Editor
Date: Tue, 13 May 1997 19:26:00 -0300
From: Miguel Sarries <msarries@ST.COM.UY>
Subject: Water to Minitubers
Hy everybody:
I want to know how much water I have to put in a greenhouse of
potato plant in order to produce minitubers. I have beds of 1 meter wide
with 5 lines per bed. I also want to know something about fertirrigation to
the same conditions.
Thank you.
Regards from Tacuarembo. Uruguay.
Miguel Sarries
Date: Tue, 13 May 1997 21:21:39 -0600
From: wilderness flowers <flowers@RT66.COM>
Subject: Re: Water to Minitubers
>Miguel Sarries
i believe that the requirements are the same as what we use here for field
production and that should be about 1"(2.5cm) of water per week.
we have had good luck with organic fertilzation at
blood meal rock phosphate k2so4 dolomite
#/1000 8 45 6 11
kg/100 m sq 4 21 3 5
cultivation of potatoes following a low density planting of vetch or peas
will substitute for blood meal but be careful if the pea/vetch density is
too high the potato crop will be poor due to excess nitrogen
to approximate the recomended conventional fertilizer at these levels
element Crop recomended
Potatoes fertilizer
# element per acre kg/100sq meters
n 150 1.57
p 108 1.13
k 160 1.67
ca 300 3.13
mg 100 1.04
S 100 1.04
good luck
martin connaughton wilderness flowers
santa fe nm
Hy everybody:
> I want to know how much water I have to put in a greenhouse of
>potato plant in order to produce minitubers. I have beds of 1 meter wide
>with 5 lines per bed. I also want to know something about fertirrigation to
>the same conditions.
> Thank you.
> Regards from Tacuarembo. Uruguay.
> Miguel Sarries
>
>
Martin & Damien Connaughton
Wilderness Flowers
Flowers@rt66.com
Rt 19 Box 111-D
Santa Fe, NM 87505
505 988 3096
"Think Flowers"
End of TRICKLE-L Digest - 12 May 1997 to 13 May 1997
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>From owner-TRICKLE-L@crcvms.unl.edu Thu May 15 01:04 EDT 1997
Date: Thu, 15 May 1997 00:02:55 -0600
Subject: TRICKLE-L Digest - 13 May 1997 to 14 May 1997
There are 2 messages totalling 68 lines in this issue.
Topics of the day:
1. Hydrooponic culture
2. Trickle-L update
Date: Wed, 14 May 1997 10:51:52 -0400
From: George Wille <GeorWille@AOL.COM>
Subject: Re: Hydrooponic culture
Hi, I'm George Wille, and I want to know if Hydroponic culture on small
places can be a good income, instead of the traditional culture.
Thanks for your comments
I will apreciate them.
George
Date: Wed, 14 May 1997 09:15:48 -0700
From: Richard Mead <rmead@AGRILINK-INT.COM>
Subject: Trickle-L update
Well Trickle-L gang, I couldn't take it any longer (being out of the
Trickle-L loop that is).
I have canceled my >rmead@cybergate.com< email Trickle-L owner account and
now will assume Trickle-L management responsibilities from my business
account. My apologies to those of you who have tried to contact me via the
cybergate address.
I also apologize for the Microirrigation Forum web site
(www.cybergate.com/~rmead) being inaccessible. Due to this Internet site's
popularity (~150+ hits/day...usually), I have been thinking about creating
a totally new domain and making it a non-profit entity such as
"www.microirrigation.org". If any of you have suggestions about the
non-profit status and/or a suggested name for the site, feel free to pop me
an email with your comments.
Prior to the Cybergate fiasco, I was going to mention that there are new
archive files on the Microirrigation web site. While it's almost a moot
point at the present down time, upon MIF's reemergence, updated archives
will entail topics such as:
-Deep SDI installation, 2nd Cycle
-Fertigation efficiency
-Filter Wear continued..
-Kc Terminology
-Lowering water pH by burning Sulfur ?
-Salinity of stored irrigation water
Finally, I understand someone recently delivered a large file onto the
list. While the information is appreciated, several people were burned by
this but I'm sure the posting individual did not intend any harm.
Nevertheless, I suggest that postings do not exceed 50K and no attached
files should be delivered. There also have been comments about enclosing
the entire original posting on a reply statement. I would strongly suggest
that when replying to a post (especially a long post) that only the
pertinent sentences be included within the defaulted >< arrows. My welcome
statements to newbies will be immediately updated with these suggestions.
Once again, my apologies for the bottle neck in this intersection of the
information super highway. Let's move onward and upward in discussing drip
irrigation problems!
Sincerely,
Richard Mead
Trickle-L & MIF owner/manager
End of TRICKLE-L Digest - 13 May 1997 to 14 May 1997
****************************************************
>From owner-TRICKLE-L@crcvms.unl.edu Fri May 16 01:10 EDT 1997
Date: Fri, 16 May 1997 00:09:31 -0600
Subject: TRICKLE-L Digest - 14 May 1997 to 15 May 1997
There is one message totalling 38 lines in this issue.
Topics of the day:
1. Lysimeters and Piezometers
Date: Thu, 15 May 1997 14:35:00 -0500
From: Paul Reynolds <PREYNOLD@TNRCC.STATE.TX.US>
Subject: Lysimeters and Piezometers
Howdy folks,
I need some assistance. I have a research project that I am trying to get
off the ground and I need some information on venders for lysimeters
and piezometers. We are looking at the possibility of utilising 'push point'
equipment for sampling soil water and/or perched water tables at less
than 12-15 foot depths. Price is not a major factor, however, it would
be convenient to keep it at a minimum.
Also, since this is a federal project, for QAQC purposes, all field
individuals need to have training in the installation and sampling of these
products.
If any of you folks can be of assistance, I would be grateful for any
input you may be able to send my way. I would prefer to have all
information sent via e-mail or fax as we are pressed for time.
Thank you for your time and patience.
Paul Reynolds (MC-147)
Texas Natural Resource Conservation Commission
GroundWater Assessment Section
PO Box 13087
Austin TX 78711-3087
preynold@tnrcc.state.tx.us
(512)239-4508 phone
(512)239-4450 fax
End of TRICKLE-L Digest - 14 May 1997 to 15 May 1997
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>From owner-TRICKLE-L@crcvms.unl.edu Wed May 21 01:03 EDT 1997
Date: Wed, 21 May 1997 00:02:49 -0600
Subject: TRICKLE-L Digest - 15 May 1997 to 20 May 1997
There is one message totalling 20 lines in this issue.
Topics of the day:
1. Trickle irrigation and jojoba
Date: Wed, 21 May 1997 08:33:29 +1000
From: Pat Hulme <pathulme@OZEMAIL.COM.AU>
Subject: Trickle irrigation and jojoba
G'Day,
I have recently been discussing irrigation options for a 20 ha jojoba
plantation in eastern Australia.
My understanding from research agronomists here is that the best irrigation
strategy is to fill the soil with water when the plants are dormant
(winter), then have plants use this moisture during the summer. The
advice is that furrow irrigation is the best way of doing this.
The question put to me was: Are there any successful jojoba plantations
irrigated by trickle irrigation?
Can participants of TRICKLE-L help me answer this question?
End of TRICKLE-L Digest - 15 May 1997 to 20 May 1997
****************************************************
Prepared by Steve Modena, AB4EL
Suggestions and comments to: modena@SunSITE.unc.edu