Archive POT-MOD-L: file log9406, part 1/1, size 63875 bytes:
------------------------------ Cut here ------------------------------
Dear netters:
We are a small group of specialists (hardware and software Eng.,
biologists, etc.) living in Austria, USA and Romania, developing together a
DSS for agriculture called AgroExpert. In spite of the name, it is not (yet)
an ES but it will surely be in the (next) future. You'll find next a brief
description...
The AgroExpert system mainly consists of:
1. AgroExpert Measuring Stations (AMS)
- Multiple AMS units are installed on monitored acreage,
as determined by crop and topography.
- Sensors measure temperature, precipitation, relative humidity,
leaf moisture, wind speed (optional), soil moisture (opt.),
and air pressure (opt.).
- The data is transmitted from AMS to the base by radio every 15
minute.
- Radio distance up to 10 miles or 45 miles with an additional
repeater.
- AMS units are solar powered and do not need electrical connection.
2. AgroExpert Central Unit
2.1 Incoming radio data are collected by a radio receiver and
downloaded
to the central unit (IBM compatible 486 PC, witch is running
AgroExpert
software.
2.2 AgroExpert software (runs on Windows 3.1x):
- Climatic data collection:
o - creates the climatic profiles for the monitoring
acreage.
o - graphic representation of climatic data (daily,
weekly, monthly).
- Early detection system:
o - Algorithms for diseases separately programmable
for each AMS.
o - Advanced warning of disease symptoms.
o - recommendation(s) for date of chemical treatments
with database of suggested chemicals.
3. AgroExpert networking permits:
3.1 Networking of multiple computers (users) via modem to one
AgroExpert
central unit.
3.2 Networking of several AgroExpert Central Units to a regional
information
system.
4. AgroExpert Crops and Algorithms
The complex biological rules of the various diseases have been
converted into computer algorithms witch analyses the raw data gathered
by measuring stations and thereby detect and recommend treatment for
those diseases.
A list of available algorithms at present:
1. Vine (Plasmopara viticola, Oidium tuckeri, Botrytis cinerea)
2. Potato (Phytophtora infestans)
3. Onion (Peronospora destructor)
4. Fruit (Podosphaera leucotricha, venturia inequalis)
5. Tomato (Phytophtora infestans)
6. Hops (Pseudoperonospora humuli)
7. Grain (Giberella rose, Cercosporella herpotrichoides)
8. Sugar beet (Cercospora beticola Sacc.)
9. Cucumber (Plasmopara cubensis)
10. Plum (Polystigma rubrum)
11. Cherry (Monilia fructigena)
5. And now some technical details...
5.1 The hardware platform.
- AMS (transceiver incorporated) works in UHF telemetry band 433
MHz
with 0.5 watt output power;
- the range of measuring:
o - leaf moisture within a scale from 1 to 9;
o - temperature (+/- 0.4 deg. Celsius)
o - relative humidity (+/- 4%)
o - precipitation (+/- 2%);
- all the hardware is a SMD technology fully designed in the
Adcon branches in USA, Austria and Romania.
..
5.2 The software platform.
The AgroExpert software runs under Windows (TM) 3.1x
on 486 33 MHz PCs with at least 8 MB RAM and 120 MB HDD.
It consists of a kernel module and many DLLs called algorithms.
Using MSVC from Microsoft and the ODBC feature permits to have not only
a DSS but also a powerful tool. You can freely exchange data with other
windows based applications, spreadsheets (Access, Excel), etc.
Accessing the raw data from AgroExpert is fully transparent for the
user
witch can use prebuild or his own software to send queries to the main
server and obtain the data. (Not to mention the possibility to exchange
data
directly via the clipboard).
6.0 Some of the advantages using AgroExpert.
- Quality control of crops through carefully administered plant
protection.
- Up to 50% savings in cost of chemicals through fewer yet more
efficient
applications.
- Prudent use of chemicals minimizes environmental risks.
- Lower production costs and improved quality assurance allows return
of
investment often within the first year of use.
- Microclimatic data base for subregions enables better planning.
- Networking of many AgroExpert central units to a regional information
system enhances strategic decisions.
That's all for now. I'm sorry if that *brief* introduction became boring but
I hope it can be a start of interesting chats. Please feel free to ask or
add your comments either to the list or directly.
Best regards,
Florin Chocky Marinache
Voice : (+40) 1 - 312 - 6886
Fax : (+40) 1 - 312 - 6668
Internet: chocky@adcon.ro
Address : B-dul Unirii 20 Bl. 5C ap.1, 76105 Bucharest / Romania
I am Joe Culin at Clemson University (South Carolina). I am interested in
the potato modeling network from a teaching standpoint. I would be interested
in using the model in both graduate IPM and Insect Ecology courses.
On Wed, 1 Jun 1994, Florin Marinache wrote:
>
> Dear netters:
>
> We are a small group of specialists (hardware and software Eng.,
> biologists, etc.) living in Austria, USA and Romania, developing together a
> DSS for agriculture called AgroExpert. In spite of the name, it is not (yet)
> an ES but it will surely be in the (next) future. You'll find next a brief
> description...
>
> The AgroExpert system mainly consists of:
> 1. AgroExpert Measuring Stations (AMS)
> - Multiple AMS units are installed on monitored acreage,
> as determined by crop and topography.
> - Sensors measure temperature, precipitation, relative humidity,
> leaf moisture, wind speed (optional), soil moisture (opt.),
> and air pressure (opt.).
> - The data is transmitted from AMS to the base by radio every 15
> minute.
> - Radio distance up to 10 miles or 45 miles with an additional
> repeater.
> - AMS units are solar powered and do not need electrical connection.
>
> 2. AgroExpert Central Unit
> 2.1 Incoming radio data are collected by a radio receiver and
> downloaded
> to the central unit (IBM compatible 486 PC, witch is running
> AgroExpert
> software.
> 2.2 AgroExpert software (runs on Windows 3.1x):
> - Climatic data collection:
> o - creates the climatic profiles for the monitoring
> acreage.
> o - graphic representation of climatic data (daily,
> weekly, monthly).
> - Early detection system:
> o - Algorithms for diseases separately programmable
> for each AMS.
> o - Advanced warning of disease symptoms.
> o - recommendation(s) for date of chemical treatments
> with database of suggested chemicals.
>
> 3. AgroExpert networking permits:
> 3.1 Networking of multiple computers (users) via modem to one
> AgroExpert
> central unit.
> 3.2 Networking of several AgroExpert Central Units to a regional
> information
> system.
>
> 4. AgroExpert Crops and Algorithms
> The complex biological rules of the various diseases have been
> converted into computer algorithms witch analyses the raw data gathered
> by measuring stations and thereby detect and recommend treatment for
> those diseases.
>
> A list of available algorithms at present:
> 1. Vine (Plasmopara viticola, Oidium tuckeri, Botrytis cinerea)
> 2. Potato (Phytophtora infestans)
> 3. Onion (Peronospora destructor)
> 4. Fruit (Podosphaera leucotricha, venturia inequalis)
> 5. Tomato (Phytophtora infestans)
> 6. Hops (Pseudoperonospora humuli)
> 7. Grain (Giberella rose, Cercosporella herpotrichoides)
> 8. Sugar beet (Cercospora beticola Sacc.)
> 9. Cucumber (Plasmopara cubensis)
> 10. Plum (Polystigma rubrum)
> 11. Cherry (Monilia fructigena)
>
> 5. And now some technical details...
> 5.1 The hardware platform.
> - AMS (transceiver incorporated) works in UHF telemetry band 433
> MHz
> with 0.5 watt output power;
> - the range of measuring:
> o - leaf moisture within a scale from 1 to 9;
> o - temperature (+/- 0.4 deg. Celsius)
> o - relative humidity (+/- 4%)
> o - precipitation (+/- 2%);
> - all the hardware is a SMD technology fully designed in the
> Adcon branches in USA, Austria and Romania.
> ..
> 5.2 The software platform.
> The AgroExpert software runs under Windows (TM) 3.1x
> on 486 33 MHz PCs with at least 8 MB RAM and 120 MB HDD.
> It consists of a kernel module and many DLLs called algorithms.
> Using MSVC from Microsoft and the ODBC feature permits to have not only
> a DSS but also a powerful tool. You can freely exchange data with other
> windows based applications, spreadsheets (Access, Excel), etc.
> Accessing the raw data from AgroExpert is fully transparent for the
> user
> witch can use prebuild or his own software to send queries to the main
> server and obtain the data. (Not to mention the possibility to exchange
> data
> directly via the clipboard).
>
> 6.0 Some of the advantages using AgroExpert.
> - Quality control of crops through carefully administered plant
> protection.
> - Up to 50% savings in cost of chemicals through fewer yet more
> efficient
> applications.
> - Prudent use of chemicals minimizes environmental risks.
> - Lower production costs and improved quality assurance allows return
> of
> investment often within the first year of use.
> - Microclimatic data base for subregions enables better planning.
> - Networking of many AgroExpert central units to a regional information
> system enhances strategic decisions.
>
> That's all for now. I'm sorry if that *brief* introduction became boring but
> I hope it can be a start of interesting chats. Please feel free to ask or
> add your comments either to the list or directly.
>
> Best regards,
> Florin Chocky Marinache
>
> Voice : (+40) 1 - 312 - 6886
> Fax : (+40) 1 - 312 - 6668
> Internet: chocky@adcon.ro
> Address : B-dul Unirii 20 Bl. 5C ap.1, 76105 Bucharest / Romania
>
Well you seem to have solved -all- the problems. I think I will just pack
up and go home then. :)
Graham (sorry...having a bad day.)
Graham wrote:
> Well you seem to have solved -all- the problems. I think I will just pack
> up and go home then. :)
>
> Graham (sorry...having a bad day.)
>
Dear Graham,
You do not have to be sorry because having a bad day ... Everyone is, from
time to time, in 'gray' shape...
We do not have solved *all* the problems but with a help from nice people
and top specialists we (altogether) *might* improve our approach to
agriculture modeling.
Thanks for reply,
Florin Marinache
Dear Florin, AgroExpert sounds very similar to Public Agric. Weather System
(PAWS) run by Washington State University. Maybe you or they have solved
some problems that the other should hear about. I have forwarded your post
to Tom Ley, director of PAWS at leyt@wsuvm1.csc.wsu.edu, you may want to
exchange ideas with him.
Are you going to have a role for large, complex agricultural models in
AgroExpert? Perhaps they could be made available for downloading by
users to local workstations or pc's and run locally. Mechanistic
simulation models combining crop physiology and soils processes tend to be
quite large (300kbytes to 2mbytes), perhaps too large for users to run
online.
Tom
Tom Hodges Cropping Systems Modeler ___ ___
USDA-ARS / \_/ \
Rt. 2, Box 2953-A Telephone: 509-786-2226 | |
Prosser, WA 99350 Fax: 509-786-4635 \______/^\/
USA potato tuber
============= thodges@beta.tricity.wsu.edu ========================
...photosynthesis makes the world go around... Mr. Potato Head
On Wed, 1 Jun 1994, Florin Marinache wrote:
> DSS for agriculture called AgroExpert. In spite of the name, it is not (yet)
> - Sensors measure temperature, precipitation, relative humidity,
> leaf moisture, wind speed (optional), soil moisture (opt.),
> and air pressure (opt.).
> - The data is transmitted from AMS to the base by radio every 15
> minute.
> - Radio distance up to 10 miles or 45 miles with an additional
> repeater.
> - AMS units are solar powered and do not need electrical connection.
Hello Derek,
Nice to see you on the net!
We are interested in the model you developed. Could you give me more
details?
And, by the way, please do not forget to mention *in the text body* you
internet address...
Thank you,
Florin Chocky Marinache
Voice : (+40) 1 - 312 - 6886
Fax : (+40) 1 - 312 - 6668
Internet : chocky@adcon.ro
Address : B-dul Unirii 20 Bl. 5C ap.1, 76105 Bucharest / Romania
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
Language shapes the way we think,
and determines what we can think about.
- B.L. Whorf
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
Hi,
My name is George Rice, and I am a systems programmer for the University of
Wisconsin-Madison. I am involved with the federal IPM program and am
attached to the department of Horticulture. I have some training in Soil and
Crop Science, but my career path has led to software development.
I work in a multi-disciplinary environment and we are currently marketing a
software product called PCM (Potato Crop Management.) It has emergence
(weed), disease (early/late blight), insect and irrigation scheduling
modules. It also has a rudimentary recording-keeping capability as well as a
potato storage ventilation sizing calculator.
We are in the process of converting this program to a Windows environment
and currently have an alpha version in place for testing. This new program
is called WISDOM (Wisconsin Integrated Systems Decision-oriented Management,
or whatever else you can think of) and was "unveiled" at the Las Vegas IPM
meetings recently.
My main interest is seeing what's out there software-wise and exploring the
possibilty of standardizing on some sort of exchangeable
file/module/interface format, which might allow certain plug-and-play
capabilities, allowing for easy software expandability.
George Rice, Systems Programmer
***** ***** * * Integrated Pest Management
* * * ** ** University of Wisconsin-Madison
* ***** * ** * 481 Horticulture Bldg.
* * * * Madison, WI 53706
***** * * * Internet: rice@calshp.cals.wisc.edu
the next generation... Voice: 608-262-0170; FAX: 608-262-4743
BBS: 608-262-3656 (modem N,8,1,14.4KBaud)
To: John Ingram
From: Tom Hodges
I will forward your note to pot-mod-l.
Thanks, Tom Hodges
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 June 1994
Dear Tom
Thanks very much for all the information on the potato modelling
network. I circulated the details to all the participants at the
Wageningen workshop, and the consensus was that it was a useful
and worthwhile exercise. Thanks for taking the initiative.
We need to take stock of where we are now and think a little of
the future; for now I am maintaining a file of various e-mail
messages relating to the network, and when we have a firm plan, I
will be able to send out news. By the way, Bernard Tinker and I
share an e-mail address, so in practice, you need only send stuff
to me.
I will be in touch in due course.
With best wishes.
John
The May archive for the listserv group is now available.
A brief introduction:
Name: Jan Vos
Location: Department of Agronomy - Wageningen Agricultural University
Address: Haarweg 333
Zip @ city: 6709 RZ Wageningen
Country: The Netherlands
fax ..31 8370 84575
tel.. ..31 8370 - 83042
e-mail: <jan.vos@akker.agro.wau.nl>
primary research objectives:
- analysis of foliar develoment of potato in response to nitrogen (amount,
phasing in time); interactions with other growth factors
- analysis of nutrient flows (nitrogen mainly) in arable cropping systems
- analysis of nitrogen accumulaton in autumn grown overwintering 'catch crops'
purpose of experimental research: provide 'building blocks' for dyanimic
simulation models;
involvement in modelling:
- co-organizer of the 1st ans 2nd international potato modelling workshops
- co-supervisor of MSc and PhD students working on simulations models
jan vos
From: Chuck Sundermeier - (402) 472-5655 <CSUNDERMEIER@crcvms.unl.edu>
To: potmod@beta.tricity.wsu.edu
Subject: Re: May Archive for your Listserv (fwd)...????
I left out a line in configuring the archive -- try again.
>Chuck, is this the correct syntax?
>
>Tom Hodges potmod@beta.tricity.wsu.edu
>
>> I tried to retrieve the archive with this command:
>>
>> GET POT-MOD-L LOG9405
>>
>> Steve Modena/nmodena@unity.ncsu.edu
Thanks Chuck for letting us know.
This should work now, let me know if anyone still has problems.
Tom Hodges potmod@beta.tricity.wsu.edu
GET POT-MOD-L LOG9405
>
> GET POT-MOD-L LOG9405
>
>
That request works OK now (didn't last week)...but, of course, it
doesn't work *unless* it is sent to "listserv@unl.edu", rather than
to "pot-mod-l@unl.edu".... :^)
Steve Modena nmodena@unity.ncsu.edu
i am trying to track down all potato growth models published since 1988. can
anyone out there send me a citation list? i am specifically interested in how
the models handle leaf area estimation.
thanks.
derek lactin
LACTIN@ABRSLE.AGR.CA
I am developing an expert model to determine the water volumes and field
sprayer pressure outputs required for different stages of potato crop
canopy density.
Each potato crop variety will develop significantly different canopy
densities through the grwoing season. As the crop develops, water
coverage becomes very critical to ensure fungicides and insecticides
cover the plant.
Water volume rates for the potato crop will vary from 20 to 40 USgals per
acre depending on the crop's growth. With heavy canopy growth in the
later season, the crop here on Prince Edward Island has required 40
usgals of spray solution delivered at 125 psi to ensure good coverage
down the bottom of the plant. Varieties such as Kennebec and Green
Mountain which have dense canopies have been successfully covered with
protectant fungicides at 125 psi and40 USgals.
What I am looking for are sources of information that have looked at
fungicide spraying related to potato crop canopy density. Lower volumes
of spray solution delivered at lower pressures can be used at the
beginning of a fungicide spray program. Potato producers would like to
know when to change water rates and pressure rates as the crop grows.
Any information you could provide would be a great help.
Thanks,
Brian Craig
=======================================================================
| Brian N. Craig | Agricultrue |
| bncraig@bud.peinet.pe.ca | Pest Management Consultant |
|---------------------------------------------------------------------|
| VOICE: (902) 368-5637 | P.O. Box 1083 |
| FAX: (902) 368-5661 | Cornwall, P.E.I., Canada |
| | C0A 1H0 |
-=======================================================================
I would appreciate hearing whether people think it is appropriate
to post these camase newsletters on pot-mod-l. Is almost everybody
already getting them?
Tom
Tom Hodges Cropping Systems Modeler ___ ___
USDA-ARS / \_/ \
Rt. 2, Box 2953-A Telephone: 509-786-9207 | |
Prosser, WA 99350 Fax: 509-786-4635 \______/^\/
USA potato tuber
============= thodges@beta.tricity.wsu.edu ========================
...photosynthesis makes the world go around... Mr. Potato Head
---------- Forwarded message ----------
Date: Thu, 30 Jun 1994 14:47:00 +0100
From: M.C.Plentinger AB-DLO tel:08370-75961 <M.C.PLENTINGER@ab.agro.nl>
To: Multiple recipients of list CAMASE-L <CAMASE-L@HEARN.nic.SURFnet.nl>
Subject: CAMASE_NEWS no. 2.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
N E W S L E T T E R
O F
A G R O - E C O S Y S T E M S
M O D E L L I N G
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Published by AB-DLO June 1994, No.2
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\==================================================================\
\ \
\ CONTENTS \
\ \
\ REGISTER OF AGRO-ECOSYSTEMS MODELS \
\ \
\ ANNOUNCEMENTS \
\ Validation of models, \
\ Smalltalk for agro-environmental systems modelling \
\ \
\ FORTHCOMING MEETINGS \
\ \
\ NEW BOOKS \
\ \
\ THE MARKET PLACE, WITH: \
\ Research activities of the IAS-U. Cordoba Laboratory of \
\ plant-soil-water, \
\ Potato modelling discussion group, \
\ User-friendly shell for crop simulation \
\==================================================================\
====================================================================
EDITORIAL
This is the second issue of the Newsletter. It has a new Register of
models as a special topic.
We received many responses to the first issue of the CAMASE
Newsletter. Particularly through e-mail, subscribers gave
suggestions, submitted information and added names to the mailing
list. Thank you for your interest. Almost 200 persons from 35
countries receive the Newsletter, including 50 scientists from
outside Europe. We hope to continue to distribute information useful
to YOU, and will be delighted to provide with a forum for your
'modelling remarks'.
The next Newsletter will report on the Modelling and Agroclimatology
workshops and demonstrations of the forthcoming ESA-congress in
September.
Frits Penning de Vries,
Marja Plentinger
====================================================================
* * *
THE REGISTER OF AGRO-ECOSYSTEMS MODELS
k e y w o r d s:
s i m u l a t i o n, m o d e l s,
m o d e l l i n g t o o l s,
d a t a b a s e,
s t a n d a r d i z a t i o n
CAMASE has started to develop a comprehensive register of
agro-ecosystem models, in order to:
- increase awareness among scientists of existing models;
- increase accessibility of these models;
- stimulate harmonization and compatibility of models;
- stimulate use of models.
The Register will become a computerized and annually updated
data base of model profiles, accessible through a network.
Specific selections of models (e.g. on N and crops) can be
printed for workshops, or on request for those without
computer access. During the three years of CAMASE, the
information from the Register will be free.
We will attempt to collect 80% of relevant models used in
Europe for research, education and application in:
- intensively and extensively produced agricultural crops,
grasslands, forests, and their environments;
- cropping and farming systems, farm households, land use;
- shells for such models;
- tools for such models in DSS-applications (e.g. microclimate
profiles for irrigation scheduling);
The Register will contain only simulation models that are
documented, at least at a scientific level, and 'validated',
at least partially; it will also contain some software tools
that are directly related to the simulation activities.
We have started to collect models in The Netherlands, and hope
to complete that in about 12 months. Other CAMASE core groups
will become active later in 1994 to prepare model profiles
with their colleagues in Denmark, France, Spain and the U.K.
For collection of models from other countries, we welcome your
suggestions on how to proceed. You may have also other
suggestions about the Register, or may know about similar
collections elsewhere. If so, please do not hesitate to tell
us. We will keep you informed through this Newsletter.
An example of a model profile is presented in the box below.
--------------------------------------------------------------------
REGISTER FORM SAMPLE
GENERAL OVERVIEW
UPDATE: DATE LAST PROFILE:
TITLE : ORYZA_W (2.1)
SUBTITLE : Rice model for irrigated and water-limited conditions.
CONTACT : Dr.ir. B.A.M. Bouman
ADDRESS : Research Institute for Agrobiology & Soil
Fertility (AB-DLO), Dept. Agrosystems Research,
P.O.Box 14, 6700 AA Wageningen, THE NETHERLANDS
TELEPHONE: +31.8370.75972
TELEFAX : +31.8370.23110
E-MAIL : Bouman@ab.agro.nl
CO-AUTHORS : M.C.S. Wopereis
PURPOSE (1 most relevant, 3 least relevant):
Research 1
Education
Application 2
NEW RELEASES EXPECTED: Yes
SUBJECT :
Crop science x
Farming system
Soil science
Environmental science
Crop protection
Agricultural science
Forestry
DESCRIPTION (< 200 words) : The model simulates growth and
development of rice in irrigated and rainfed lowland and in
rainfed upland conditions, with ample supply of nutrient and
with no pests, diseases or weeds. The above-ground part of the
model is based on ORYZA1, extended with the effects of drought
stress on corp growth and development. Daily dry matter
increase is simulated based on underlying physical and
physiological processes (e.g. light interception, leaf and
canopy photosynthesis, maintenance respiration (e.g. light
interception, leaf and canopy photosynthesis, maintenance
respiration, conversion). Leaf photosynthesis is a function of
irradiation and leaf nitrogen content. Soil evaporation and
crop transpiration are calculated on the basis on the Penman
equations. Drought stress effects include leaf rolling, delay
in phenological development, inhibited leaf growth and reduced
photosynthesis. Switches are used to control the production
environment. In lowland, the above-ground module is combined
with the water balance model LOWBAL*, and in upland with
SAHEL*. In irrigated lowland, irrigation is treated ad
dynamically simulated variable. ORYZA_W can be used for
experimental studies (LAI as forcing function; comparison with
measurements) and for extrapolation purposes (e.g. agro-
ecological zonation, scenario studies).
SCIENTIFIC SPECIFICATIONS
RATE VARIABLES : Phenological development, leaf and
canopy photosynthesis, maintenance
and growth respiration, crop growth,
growth of plant organs, evaporation,
transpiration, seeepage and percolation
rate, water content, irrigation. (75)
STATE VARIABLES : Above-ground: biomass (total,
and per crop organ), leaf area
index, intercepted light (and others);
Below-ground: ponded water depth,
content and amount of water
in puddled layer. (75)
INPUT DATA : Geographical latitude and longitude,
(daily) weather data, crop specific
physiological and morphological
properties, physical and hydrological
soil properties, crop and soil
management information. (75)
OUTPUT DATA : Crop rate and state variable (e.g. LAI,
soil cover, biomass), soil rate and
state variables (e.g. ponded water depth,
irrigation water). (25)
SIMULATION INTERVAL : 1 day
BASIC UNIT OF SURFACE AREA : m2 - ha
REFERENCES GENERAL VALIDATION:
- Bouman, B.A.M., 1993. ORYZA_W, Rice
growth model for irrigated and
water-limited conditions. SARP report,
March 1993. AB-DLO. 67 pp.
- Bouman, B.A.M., 1994. ORYZA_W rice
growth model. SARP Internal paper,
April 1994 (45 pp.) [Formal description
to appear in 1994].
STAND ALONE MODEL : Yes, but can also be run under the
SARP*-Shell.
PARENTAGE : ORYZA_W (1.0), ORYZA1, SUCROS, MACROS,
INTERCOM
CHECK INTERNAL CONSISTENCY OR MATERIAL BALANCE PRESENT?:
ARE INPUTS CHECKED IN PROGRAM?:
TECHNICAL SPECIFICATIONS
HARDWARE : VAX computers,
IBM-compatible PC-AT's >= 640.
PROGRAMMING LANGUAGE : FORTRAN77 (in FSE*)
OTHER SOFTWARE REQUIRED : FORTRAN library, TTUTIL* library,
WEATHER* library
USER'S GUIDE AVAILABLE : See above 'References general validation'.
TECHNICAL REFERENCE MANUAL : See above 'References general validation'.
APPLICATION REPORTS : See above 'References general validation'.
SOURCE CODE AVAILABLE : Yes
EXECUTABLE : Yes
USER CONTRACT MANDATORY : No
COSTS : No
COMMENTS : -
*: more information elsewhere in Register.
--------------------------------------------------------------------
* * *
ANNOUNCEMENTS
k e y w o r d s:
v a l i d a t i o n o f m o d e l s,
S m a l l t a l k f o r a g r o - e n v i r o n m e n t a l
s y s t e m s m o d e l l i n g
* Validation of models
As modellers, it is sometimes easy to be enthusiastic about a
comparison of simulation results and experimental values. You
may have had the experience that others interpret the same
results differently. Or vice versa: you see need for more
research, while others are already satisfied. Such
discrepancies point at a need for objective methods to express
the goodness of fit of results of mechanistic models. I would
appreciate receiving from you suggestions about which methods
to use and/or your experience with them. A summary of your
comments will be communicated through this newsletter.
Dr. F.W.T. Penning de Vries, Research Institute for
Agrobiology and Soil Fertility (AB-DLO), Dept. Agrosystems
Research, P.O.Box 14, 6700 AA Wageningen, THE NETHERLANDS
telephone: +31.8370.75960
telefax : +31.8370.23110
e-mail : pdvries@ab.agro.nl
* Smalltalk for agro-environmental systems modelling
Is anyone using Smalltalk for agro-environmental systems
modelling?
If yes, please drop a line to:
Bill Bland
Dept. of Soil Science
University of Wisconsin-Madison
1525 Observatory Drive
Madison, WI 53706-1299
608/262-0221
* * *
FORTHCOMING MEETINGS
- The Third International Conference for Systems Integration.
Sao Paulo City - Brazil. July 30th - August 6th 1994.
Contact: Prof. Peter A. Ng, IIISis -USA Office- New Jersey
Inst. of Technology, University of Heights, Newark, NJ 07102
USA
Telephone: (1)(201) 596-3387
Telefax: (1)(201) 596-5777
Or: Prof. Fuad Gattaz Sobrinho
Telephone: (55)(192) 41-4504
Telefax: (55)(192) 41-3098
- Conference on 'Developing Sustainable Farming systems:
Social, Economic, and Environment Considerations' August 1-3
in Des Moines. Sponsored by the American Society of Agronomy's
North Central Region. Conference will feature a Kellog-
sponsored Integrated Farming systems Workshop, sessions by the
Registry of Environmental and Agricultural Professionals, a
Resource Fair and more. Contact Steve Oberle for informations:
515- 294- 6691.
- Scenario Studies for the Rural Environment. 5th anniversary
symposium of the DLO-Winand Staring Centre. Wageningen, 12-15
September 1994.
Themes: Regional soil and water management, nature development
and landscape quality, and impact of scenario studies on land
use planning.
Contact: dr. J.F.T. Schoute, DLO-Winand Staring Centre, P.O.
Box 125, 6700 AC Wageningen, The Netherlands
Telephone: +31-8370-74274
Telefax: +31-8370-24812
- The third Congress of the European Society for Agronomy will
be held at the Teatro Congressi of Abano Terme (Padova), 18-22
September, 1994. Special workshops on Modelling and
Agroclimatology.
Contact (Secretariat): SISTEMA CONGRESSI, Via Jappelini 12,
35121 PADOVA, ITALY
Telephone: +39-49-651699
Telefax: +39-49-651320
* * *
NEW BOOKS
- Wortelboer, F.G. (ed.), 1994. RIVM Model Catalogue. National
Institute of Public Health and Environmental Protection.
Bilthoven, The Netherlands. RIVM report no. 739400001. pp.
127.
This report contains a compilation of descriptions of models
which are currently being used or under development at the
National Institute of Public Health and Environmental
Protection (RIVM), The Netherlands. A large part of the models
included is developed at the RIVM itself. The models are
described in a very condensed standard format.
Each model description contains the following entries: Name of
the model, Contact in RIVM, Purpose, Policy theme, Technical
specifications, Status, Availability, Documentation. Besides,
the report contains a list of the models grouped by
laboratory, a list of the models grouped by theme, and an
index.
This catalogue now contains descriptions of 124 models and
tools. The entry on model status has been extended by
subentries for version number and the presence of Standard
Operating Procedures (SOP's). As modelling efforts continue,
this catalogue of models will become outdated eventually. It
is the intention of the committee to update this report
regularly, in response to the extents of the updates of
individual models and the demand for this report.
Address: National Institute of Public Health and Environmental
Protection (RIVM), P.O.Box 1, 3720 BA Bilthoven, THE NETHERLANDS
telephone: +31.30.749111
telefax: +31.30.742971
- The group of Prof. Dr. Sci. Ratmir A. Poluektov
(Agrophysical Research Institute, Russia) have worked in the
field of crop simulation for more than 15 years. They have
elaborated a series of models which differ in structure and
objectives.
The idea of consolidating the efforts of European groups
dealing with elaboration and application of crop production
models with this Russian group could be very fruitful and
attractive. In the former Soviet Union there was such
cooperation, which included colleagues from Estonia (Tallinn,
Tartu), Russia (Moscow, Leningrad, Obninsk), and other
Republics, but this co-operation no longer exists. The first
book of Prof. Dr. Sci. Ratmir A. Poluektov in this field (with
co-authors) was published in Russia in 1982. Unfortunately,
the books written in Russian are almost unknown in Western
countries.
The list of recent selected publications, some of which are
written in English, is added.
Poluektov, R.A. Simulation models of agro-ecosystem
productivity // Theoretical base and quantitative methods of
yield programming. Leningrad: Agrophysical Research Institute,
1979. pp. 14 -23 (in Russian).
Poluektov, R.A., Yu.A. Pykch, & I.A.Shvytov. Dynamic models of
ecological systems. (book, in Russian), Leningrad:
Gidrometeoizdat, 1980. 304 pp.
Bondarenko, N.F., E.E. Zhukovsky, I.G. Mushkin, S.V. Nerpin,
R.A. Poluektov, & I.B. Uskov. Simulation of agro-ecosystem
productivity (book, in Russian). Leningrad: Gidrometeoizdat,
1982. 262 pp.
Poluektov, R.A. et all. Basic complex model of wheat
productivity. // Wissenschaftliche Zeitschrift der Humdoldt -
Universitaet zu Berlin, Math. - Nat. R. 1984, XXXIII, # 4. pp.
339 - 342.
Poluektov, R.A. et all. Modelling of processes in the soil-plant
system in mead - early tomato growing. // Intern. Agrophysics,
1 (1), 1985. pp. 91 - 105.
Poluektov, R.A. Dynamic models of plant production as a base
for elaboration of resource - saving agricultural
technologies. // Tag.-Ber., Akad. Landwirtsch.-Wiss. DDR,
Berlin, 275, 1988. pp. 25-29.
Zaslavsky, B.G. & R.A. Poluektov. Control in ecological
systems (book, in Russian). Moskva: "Nauka", Glavnaja
redakcija phyzico-matematicheskoj literatury, 1988. 295 pp.
Alijev,P.G. & R.A. Poluektov. Simulation of root system growth
and development in the framework of basic model of plant
production process. // Vestnik seljskokhozjajstvennoj nauki.
1988, # 11 (387). pp. 101 - 105.
Poluektov, R.A. et all. Experimental investigation of growth
and development of oats and barley plants with the aim of
identification of their dynamic models. // Physiologija i
biokhimija kuljturnykh rastenij, v. 21 # 5, 1989. pp. 507 -
514.
Poluektov R.A., Dynamic models of agro-ecosystem (book, in
Russian). Leningrad: Gidrometeoizdat, 1991. 312 pp.
Poluektov, R.A., G.V. Vasilenko, I.V. Oparina, & A.G. Topazh.
Computer system of decision support in agricultural management
// Informatica i vychisliteljnaja tekhnica. 1993, N 1-2. pp.
78-83. (The full text of the report on the 2nd International
Conference "Regional Informatics RI - 93. S.-Petersburg, May
11-14, 1993).
Poluektov, R.A. & G.V. Vasilenko. A universal water stress
index in cultivation of agricultural crops // Intern.
Agrophysics, 1993, V.7. pp. 15 -22.
Address: Prof.Dr.Sci. R.A. Poluektov, Agrophysical Research
Institute, 14 Grazhdansky prospect, 195220 St.Petersburg, RUSSIA
telephone: 812.534.46.40
telefax: 812.535.52.20
e-mail: ivl@agrophys.spb.su
- Uhlir, P.F., & G.C. Carter (ed.), 1994. Crop Modelling and
Related Environmental Data. A Focus on Applications for Arid
and Semiarid Regions in Developing Countries. CODATA
Commission en Global Change Data.
This book is intended to promote a better understanding of the
crop modelling technique and to enchance its uses. The book
describes recent developments in crop modelling and identifies
the most significant issues, with a focus on applications for
arid and semiarid regions in developing countries.
The volume is divided into four major sections:
1. Part One, on Crop Modelling and Related Data Requirements
provides the technical background with emphasis on the data
that are needed to support successful crop modelling
applications.
2. Part Two treats Accessibility of Global Environmental Data
and Selected Data Integration Issues.
3. Part Three, on Crop Modelling Applications for Arid and
Semiarid Regions in Developing Countries, reviews the major
issues involved in the effective application of crop models
in this specific context and provides some notable examples
from sub-Saharan Africa.
4. Part Four covers the Technical, Institutional, and Human
Infrastructure Considerations.
The book provides information to assist in the transfer of
crop modelling techniques to researchers and agricultural
specialists, particularly those working in and with developing
countries. It also can be used effectively as supplement
reading in higher education institutions, either in
agricultural or international relations courses.
Available postpaid from CODATA Secretariat, 51 bd. de
Montmorency, 75016 Paris, France or CODOTA, c/o E.F. Westrum,
Jr., Department of Chemistry, University of Michigan, Ann
Arbor, Mi 48109-1055, USA.
Hard cover $69; soft cover $34 (or, if more convenient,
equivalent in French Francs). Can be paid by check.
- Berge, H.F.M. ten, M.C.S. Wopereis & J.C. Shin (Editors),
1994. SARP Research Proceedings. Nitrogen economy of irrigated
rice: field and simulation studies. Proceedings of the
'International Workshop on Nitrogen Management and Modelling
in Irrigated Rice', held at the Crop Experiment Station, Rural
Development Administration, Korea, 1-10 November 1993. CABO-
DLO, Wageningen. TPE-WAU, Wageningen. IRRI, Los Banos. 306 pp.
- Berge, H.F.M. ten, M.J. Kropff & M.C.S. Wopereis (Editors),
1994. SARP Research Proceedings. The SARP-project, Phase III
(1992-1995): overview, goals, plans. Proceedings of the 'SARP
Research Planning Workshop' held at the International Rice
Research Institute, Los Banos, Philippines, 19-21 March 1992.
CABO-DLO, Wageningen. TPE-WAU, Wageningen. IRRI, Los Banos.
124 pp.
- Bouman, B.A.M., H.H. van Laar & Wang Zhaoqian (Editors),
1993. SARP Research Proceedings. Agro-ecology of rice-based
cropping systems. Proceedings of the 'International Workshop
on Agro-Ecological Zonation of Rice' held at the Zhejiang
Agricultural University, Hanghou, P.R. of China, 14-17 April
1993. CABO-DLO, Wageningen. TPE-WAU, Wageningen. IRRI, Los
Banos. 201 pp.
- Rossing, W.A.H., E.G. Rubia, K.L. Heong, M. Keerati-Kasikorn
& P.R. Reddy (Editors), 1993. SARP Research Proceedings.
Mechanisms of damage by stem borer, bacterial leaf blight and
sheath blight, and their effects on rice yield. Proceedings of
workshops in Khon Kaen, Thailand, 3-5 August 1992, and
Cuttack, India, 3-5 March 1993. DLO-Centre for Agrobiological
Research, Wageningen. Dept. of Theoretical Production Ecology,
Wageningen. IRRI, Los Banos. 137 pp
* * *
THE MARKET PLACE
R e s e a r c h a c t i v i t i e s o f t h e
I A S - U. C o r d o b a L a b o r a t o r y o f
p l a n t - s o i l - w a t e r,
P o t a t o m o d e l l i n g d i s c u s s i o n g r o u p,
U s e r - f r i e n d l y s h e l l f o r c r o p
s i m u l a t i o n
Do you feel that the research of your team is insufficiently
known? In this section, we welcome a short description of your
systems research group. Descriptions of the CAMASE core groups
are already lined up for this and forthcoming issues.
We will also welcome offers of specific expertise or data, and
calls for the same.
* Research activities of the IAS-U. Cordoba laboratory of
plant-soil-water
Cordoba holds the main campus dedicated to Agriculture and
Forestry Research in Southern Spain. The campus is located in
an old government property laying along the Guadalquivir
river. Arab ruins among olive orchards and wild birds along
the river bank are found in the 125-ha farm. The three
institutions in the campus are the School of Agriculture and
Forestry Engineering of the University of Cordoba, the
Institute for Sustainable Agriculture of the Scientific
Research Council of Spain and the Agricultural Research Center
of the Andalousian Government.
A research laboratory with scientists from the three
institutions is devoted to water management, crop modelling
and crop ecology. The group is dedicated to research and
teaching of under- and post-graduate courses. The facilities
at the Agricultural Research Center include irrigated field
plots, two large weighing lysimeters, micrometeorological
equipment and a computer laboratory.
One of the main activities of the group has been the
development of crop models. A joint project with scientists of
the University of Buenos Aires and Michigan State University
has resulted in a development, growth and yield simulation
model of the sunflower crop (OILCROP-SUN) which follows the
standards of the Ceres-type models. This model is currently
being validated in several locations of Argentina. A
simulation model of olive tree plantations is now under
development.
The application of crop models for improving crop performance
in rainfed areas includes the evaluation of sunflower
genotypes for a breeding program, analysis of sowing dates and
cultivars for wheat. Improvements in irrigation management of
maize, soybean and wheat have also been studied with crop
simulation models.
Models for water management (water distribution, water balance
and soil and nutrient losses) have been developed. During the
early days of the group, efforts were dedicated to crop
irrigation scheduling. Now research is concerned with spatial
variability in the application of water by surface and
sprinkler methods. The objective is the development of a DSS,
based on crop and irrigation district level. We would be happy
interacting with any group working in similar fields! For
further information, contact Dr. Francisco Villalobos at Dep.
Agronomia, U. Cordoba (Apartado 4240, 14080 Cordoba, Spain).
* Potato Modelling Discussion Group
Potato is a high value crop that is intensively managed with
large quantities of non-renewable inputs, and planting and
harvest methods that are quite disruptive to soil structure. A
substantial number of research groups are working on various
aspects of potato model development. A potato modelling
discussion list would these groups allow to share selected
ideas and model algorithms rapidly and efficiently.
Dr. T. Hodges (Cropping Systems Modeler)
USDA-ARS
WSU experimentation station
Rt. 2, Box 2953-A
Prosser Washington WA 99350
UNITES STATES
telephone: +1.509.786.2226
telefax : +1.509.786.4635
e-mail : thodges@beta.tricity.wsu.edu
POT-MOD-L is an Internet Discussion List for Potato
Simulation Modelling.
This list is a means for exchanging ideas and program modules
relating to potato simulation modelling. It is also a forum
for discussing other issues relating to potato modelling.
The list is open to anyone associated with or interested in
potato cultivation (very broad category).
Questions about this discussion group should be sent to
potmod@beta.tricity.wsu.edu
To join Pot-Mod-L, send an e-mail to "listserv@unl.edu" and
place sub pot-mod-l YOUR_FIRST_NAME YOUR_LAST_NAME as the body of
the text. This should be the only line in the message.
* User-friendly shell for crop simulation
During the ESA-conference in Padua, AB-DLO will demonstrate a
user-friendly shell for crop simulation, plus a number of
standardized crop simulation modules. CAMASE will make
available a preliminary version of the Register of agro-
ecology models.
====================================================================
CAMASE: A CONCERTED ACTION FOR THE DEVELOPMENT AND TESTING OF
QUANTITATIVE METHODS FOR RESEARCH ON AGRICULTURAL SYSTEMS AND THE
ENVIRONMENT.
The objectives of CAMASE are to advance quantitative
research on agricultural systems and their environment in the
EU-countries, by improving systems research in participating
institutes through exchange and standardization of concepts,
approaches, knowledge, computer programs and data.
CAMASE relates to a small network of research groups,
and a broad group of scientists receiving information. The
network consists of scientists from five groups in Europe:
Denmark (Royal Veterinary and Agricultural University,
Copenhagen), France (Institute Nationale de la Recherche
Agronomique, Toulouse), Spain (Cordoba University, Cordoba),
Scotland (Institute of Ecology and Resource Management,
Edinburgh) and The Netherlands (AB-DLO, TPE-WAU and SC-DLO,
Wageningen).
With CAMASE_NEWS, we aim to improve communication among
scientists working in agro-ecosystem modelling and interested
in better access to appropriate models, data, and related
tools, instruction materials. CAMASE-core groups and others
can contribute spontaneously or will be invited to contribute.
Responsibility for the opinions expressed rests with the
authors.
CAMASE_NEWS will appear four times per year. Please
submit news items for CAMASE_NEWS and requests for new
subscriptions to:
F.W.T. Penning de Vries/M.C. Plentinger
DLO-Research Institute for Agrobiology and Soil Fertility (AB-DLO)
P.O.Box 14
6700 AA WAGENINGEN
The Netherlands
Telephone: +31.8370.75961
Telefax: +31.8370.23110
Internet: camase@ab.agro.nl
After an e-mail request for subscription, you will
receive a form to give your address, which is necessary for
postal mailings.
====================================================================
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