AGMODELS-L: 199609XX

is the compilation of discussion during Sep 96

via AB4EL Web Digests @ SunSITE

AGROMOMY Homepage @ SunSITE


>From root@crcnis1.unl.edu Tue Sep  3 11:13 EDT 1996
Date: Tue, 3 Sep 1996 09:53:47 -0500
Message-Id: <199609031453.AA09012@crcnis1.unl.edu>
Subject: AGMODELS-L digest 559

Contents:
Agmodels Training Available? (gameier@fmc.com (Gary A. Meier))



Date: Tue, 3 Sep 1996 09:48:04 -0500 From: gameier@fmc.com (Gary A. Meier) Subject: Agmodels Training Available? I'm searching for a training course or courses focused on modeling the movement of pesticides in surface water, vadose zone water, and groundwater. I'm most interested in learning to use the programs PRZM2, GLEAMS, and EXAMS. Ideally, the training would also involve a good dose of the theory behind the models and discussion of model calibration and validation as well as a nuts and bolts discussion of how to plug in numbers and run the models. Is anyone out there offering such training? Thanks. Gary ************************************************************************** Gary Meier, Ph.D. Senior Research Computational Chemist FMC Corporation Agricultural Products Group phone: (609) 951-3448 Box 8 fax: (609) 951-3835 Princeton, NJ 08543 email: gameier@fmc.com
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>From root@crcnis1.unl.edu Wed Sep  4 11:52 EDT 1996
Date: Wed, 4 Sep 1996 10:01:51 -0500
Message-Id: <199609041501.AA06763@crcnis1.unl.edu>
Subject: AGMODELS-L digest 560

Contents:
Introduction ("Romeo R. Favreau" <rrfavreau@ucdavis.edu>)
Agmodels Training Available at IFDC ("Dr. Gerrit Hoogenboom" <gerrit@tangine.bae.griffin.peachnet.edu>)



Date: Tue, 3 Sep 1996 11:21:56 -0700 (PDT) From: "Romeo R. Favreau" <rrfavreau@ucdavis.edu> Subject: Introduction Hello to AgModels Members, My name is Romeo R. Favreau. I am a post grad researcher at UC Davis Dept Agronomy & Range Science. I have a BS in physics MIT, MS in Elec Eng USC, and an MS in Aerospace Eng UCSD. I've had extensive experience in modeling & simulation in the defense and industrial sectors. Recently I've become interested in the modeling and simulation of agricultural crop production. I have acquired the DSSAT modeling system and taken the recent course about it at the Univ of Georgia. I have also acquired a number of other models Epic, Gossym and some published by the ab.dlo group at the Univ of Wageningen. I'm quite impressed with the tremendous improvement a good interface, such as DSSAT, can make in the efficiency of modeling and simulation. I am also very much impressed at how similar most crop modeling systems are and how much program development is expended on models unrelated to a specific modeling system. With our tremendous computing power and great window interfaces for point and shoot and almost unlimited storage to include manuals and programming information and now object oriented programming making modular systems possible, it would seem that support for a common modeling system would be in order for the entire community. I'm new to the field and as such have a lot of learning to do. I've so far been exposed to a lot of modeling for research but little for the production systems or experiments. I'm looking, and hope that my joining the AgModels list server will help. With appreciation for any help I can get Romeo R. Favreau 707 Oriole Ave. Davis CA 95616 e-mail 76600.2252@compuserve.com or rrfavreau@ucdavis.edu
Date: Tue, 3 Sep 1996 17:06:25 -0400 From: "Dr. Gerrit Hoogenboom" <gerrit@tangine.bae.griffin.peachnet.edu> Subject: Agmodels Training Available at IFDC The International Fertilizer Development Center in Muscle Shoals, Alabama, will be offering a two week training course on crop simulation models during May, 1997. he course will concentrate on the application of DSSAT and its suite of crop models, including the CERES and CROPGRO family of models, as well as the theory behing these models, calibration and validation. Gerrit Hoogenboom >At 09:22 AM 9/3/96 -0500, Gary A. Meier wrote: >I'm searching for a training course or courses focused on modeling the >movement of pesticides in surface water, vadose zone water, and >groundwater. I'm most interested in learning to use the programs PRZM2, >GLEAMS, and EXAMS. Ideally, the training would also involve a good dose of >the theory behind the models and discussion of model calibration and >validation as well as a nuts and bolts discussion of how to plug in numbers >and run the models. > >Is anyone out there offering such training? > >Thanks. > >Gary ======================================================================== Gerrit Hoogenboom Associate Professor Department of Biological and Agricultural Engineering The University of Georgia Griffin, Georgia 30223-1797, USA Phone: 770-229-3438 (New !) FAX: 770-228-7218 E-mail: gerrit@bae.griffin.peachnet.edu ========================================================================
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>From root@crcnis1.unl.edu Thu Sep  5 11:19 EDT 1996
Date: Thu, 5 Sep 1996 10:05:28 -0500
Message-Id: <199609051505.AA04526@crcnis1.unl.edu>
Subject: AGMODELS-L digest 561

Contents:
Internet Sessions at RT '97 (Rick Olson <olson@marlin.csrumsu.ars.ag.gov>)
Ag Decision-support at RT '97 (Rick Olson <olson@marlin.csrumsu.ars.ag.gov>)
RE: Internet Sessions at RT '97 ("Mack, Simon (AGAP)" <Simon.Mack@fao.org>)



Date: Wed, 04 Sep 1996 14:24:16 -0500 From: Rick Olson <olson@marlin.csrumsu.ars.ag.gov> Subject: Internet Sessions at RT '97 Call for Papers and Participation Intenet in Natural Resources and Environmental Management ========================================================= Resource Technology '97 Symposium Seattle, April 7-10, 1997 The Internet has quickly established itself as a new media. It has become the medium of choice for rapid information dissemination, group collaboration, and even new forms of electronic democracy. Totally new types of systems have become possible after the introduction of the World-Wide Web. Multimedia-capable browsers are being used as universal front-ends to a multitude of applications. These developments are very relevant for environmental and natural resource management, where large amounts of often contradictory information must be quickly collected and distributed. Two sessions will be organised at the Resource Technology '97 Symposium to cover all aspects of Internet use in environmental and natural resource management. One session will overview the concepts and organisational issues of Internet. The other will cover technological aspects, applications and recent advances. Papers are sought in the following areas (not excluding others) - Strategies and policies for web usage in organisations - Web site planning and maintenance - Participatory planning and distribution of management plans to public via Interent - Accessing databases, GIS, expert systems and models via web front-ends - Java and object-oriented applications on the web - Special interest networks, virtual libraries and other forms of group collaboration on the Internet Resource Technology is a biannual series of symposia about advanced technology for natural resource and environmental managers. See http://members.aol.com/bdisbrow/rti/rtmain.htm Hundreds of delegates worldwide will convene in Seattle where Resource Technology '97 Symposium is held this time together with ASPRS/ACMS Conference. Abstracts of maximum 200 words should be received by September 6 by any of the moderators of the Internet sessions. As Internet is a rapidly moving target, we understand that presentations to be held in April 1997 cannot be enirely foreseen now, and even after the deadline, changes will be accepted. New entries will only be accepted if there is room in sessions. Preferred format of submission is electronic mail. Moderators: Amy Hays amy.hays@tpwd.state.tx.us Texas Parks and Wildlife http://www.tpwd.state.tx.us 3000 S. IH 35, Suite #100 tel:+1-512-912-7054 Austin, TX 78704 fax:+1-512-912-7058 Richard Olson olson@csrumsu.ars.ag.gov USDA-ARS http://huskie.csrumsu.ars.ag.gov/asis/ Mississippi State, MS tel:+1-601-324-4367 Hannu Saarenmaa hannu.saarenmaa@eea.dk European Environment Agency http://www.eea.dk/ Kongens Nytorv 6 tel:+45-33367115 DK-1050 Copenhagen K fax:+45-33367199
Date: Wed, 04 Sep 1996 15:30:10 -0500 From: Rick Olson <olson@marlin.csrumsu.ars.ag.gov> Subject: Ag Decision-support at RT '97 Call For Participation: Decision Support Systems in Agriculture A paper session at: Resource Technology 97, April 1997, Seattle Washington Decision support systems have become an integral part of agricultural research and management. They enable the integration of large quantities of information in multiple formats in a single package that is easily accessible to the producer, farm manager or researcher. Papers are requested from the following areas (but not excluding others, in any cropping system: simulation-based decsion support knowledge-based systems geo-spatial information systems internet-based systems agricultural economics/record-keeping systems Resource Technology is a biannual series of symposia about advanced technology for natural resource and environmental managers. See http://members.aol.com/bdisbrow/rti/rtmain.htm Hundreds of delegates worldwide will convene in Seattle where Resource Technology '97 Symposium is held this time together with ASPRS/ACMS Conference. Abstracts of maximum 200 words should be received by September 6 by the moderator. Preferred format of submission is electronic mail. Moderator: Richard Olson olson@csrumsu.ars.ag.gov USDA-ARS http://huskie.csrumsu.ars.ag.gov/asis/ Mississippi State, MS tel:+1-601-324-4367
Date: Thu, 05 Sep 1996 08:34:00 +0002 From: "Mack, Simon (AGAP)" <Simon.Mack@fao.org> Subject: RE: Internet Sessions at RT '97 FYI ---------- >From: root >To: Multiple recipients of list >Subject: Internet Sessions at RT '97 >Date: 4 September 1996 3:22PM > >Return-Path: <root@crcnis1.unl.edu> >Date: Wed, 04 Sep 1996 15:22:59 -0500 >From: Rick Olson <olson@marlin.csrumsu.ars.ag.gov> >Subject: Internet Sessions at RT '97 >Sender: agmodels-l@unl.edu >To: Multiple recipients of list <agmodels-l@unl.edu> >Errors-to: jp@unlinfo.unl.edu >Reply-to: agmodels-l@unl.edu >MIME-version: 1.0 >Content-type: TEXT/PLAIN >Content-transfer-encoding: 7BIT >Originator: agmodels-l@unl.edu >version: 5.5 -- Copyright (c) 1991/92, Anastasios Kotsikonas >--------------------------------------------------------------------------- --- >Call for Papers and Participation > >Intenet in Natural Resources and Environmental Management >========================================================= > >Resource Technology '97 Symposium >Seattle, April 7-10, 1997 > >The Internet has quickly established itself as a new media. It has >become the medium of choice for rapid information dissemination, group >collaboration, and even new forms of electronic democracy. Totally new >types of systems have become possible after the introduction of >the World-Wide Web. Multimedia-capable browsers are being used as >universal front-ends to a multitude of applications. > >These developments are very relevant for environmental and natural >resource management, where large amounts of often contradictory >information must be quickly collected and distributed. > >Two sessions will be organised at the Resource Technology '97 Symposium >to cover all aspects of Internet use in environmental and natural >resource management. One session will overview the concepts and >organisational issues of Internet. The other will cover technological >aspects, applications and recent advances. > >Papers are sought in the following areas (not excluding others) >- Strategies and policies for web usage in organisations >- Web site planning and maintenance >- Participatory planning and distribution of management plans to public > via Interent >- Accessing databases, GIS, expert systems and models via web front-ends >- Java and object-oriented applications on the web >- Special interest networks, virtual libraries and other forms of group > collaboration on the Internet > >Resource Technology is a biannual series of symposia about advanced >technology for natural resource and environmental managers. See >http://members.aol.com/bdisbrow/rti/rtmain.htm Hundreds of delegates >worldwide will convene in Seattle where Resource Technology '97 >Symposium is held this time together with ASPRS/ACMS Conference. > >Abstracts of maximum 200 words should be received by September 6 by any >of the moderators of the Internet sessions. As Internet is a rapidly >moving target, we understand that presentations to be held in April >1997 cannot be enirely foreseen now, and even after the deadline, >changes will be accepted. New entries will only be accepted if there >is room in sessions. Preferred format of submission is electronic >mail. > >Moderators: > >Amy Hays amy.hays@tpwd.state.tx.us >Texas Parks and Wildlife http://www.tpwd.state.tx.us >3000 S. IH 35, Suite #100 tel:+1-512-912-7054 >Austin, TX 78704 fax:+1-512-912-7058 > >Richard Olson olson@csrumsu.ars.ag.gov >USDA-ARS http://huskie.csrumsu.ars.ag.gov/asis/ >Mississippi State, MS tel:+1-601-324-4367 > >Hannu Saarenmaa hannu.saarenmaa@eea.dk >European Environment Agency http://www.eea.dk/ >Kongens Nytorv 6 tel:+45-33367115 >DK-1050 Copenhagen K fax:+45-33367199 >
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>From root@crcnis1.unl.edu Fri Sep  6 13:51 EDT 1996
Date: Fri, 6 Sep 1996 10:09:36 -0500
Message-Id: <199609061509.AA00252@crcnis1.unl.edu>
Subject: AGMODELS-L digest 562

Contents:
Assistantship Opportunity (boltej@ccmail.orst.edu (John P. Bolte))



Date: Thu, 5 Sep 1996 10:56:26 -0700 From: boltej@ccmail.orst.edu (John P. Bolte) Subject: Assistantship Opportunity Please circulate the following assistantship opportunity to prospective students. -------------------------------------------------------------------- GRADUATE RESEARCH ASSISTANTSHIP IN BIORESOURCE ENGINEERING AREA: AQUACULTURAL MODELING AND DECISION SUPPORT We are looking for suitably qualified individuals to pursue a Master's or Ph.D degree within the Biosystems Analysis Group in Bioresource Engineering Department at Oregon State University. Potential research areas include aquaculture systems modeling, development of decision support systems including Internet tools, and GIS applications in aquaculture. Desired qualifications: BS in Agricultural/Biological/Environmental Engineering, Aquaculture, or related fields. Programming and/or GIS experience is highly desirable. Starting Date: January, 1997. For further information, please contact: Dr. John Bolte, Associate Professor Department of Bioresource Engineering Oregon State University Corvallis, OR 97331, USA. E-mail: boltej@ccmail.orst.edu The Biosystems Analysis Group at Oregon State University focuses on applying systems theory, artificial intelligence and geographic information systems methodologies to the analysis of biological systems. We are also involved with the development of Internet-based data access and retrieval tools. Contact us on the Web at http://biosys.bre.orst.edu
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>From root@crcnis1.unl.edu Thu Sep 12 05:36 EDT 1996
Date: Thu, 12 Sep 1996 04:22:30 -0500
Message-Id: <199609120922.AA00818@crcnis1.unl.edu>
Subject: AGMODELS-L digest 563

Contents:
models for Zimbabwe ("Hollington, Phil" <pah@bangor.ac.uk>)



Date: Thu, 12 Sep 96 10:14:00 PDT From: "Hollington, Phil" <pah@bangor.ac.uk> Subject: models for Zimbabwe Dear All, I have been contacted by a researcher who is interested in modelling cropping in Zimbabwe. He is aware of the various CERES models, but would like to know if anything else is available. Are any other models validated for crops such as maize, sorghum, millet and groundnuts in this type of environment, a semiarid climate using small-scale irrigation? Any suggestions will be welcomed, and I can pass them, and hopefully the models themselves, on to him. Many thanks in advance, Phil Hollington, CAZS Bangor, UK
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>From root@crcnis1.unl.edu Fri Sep 13 05:36 EDT 1996
Date: Fri, 13 Sep 1996 04:22:26 -0500
Message-Id: <199609130922.AA01636@crcnis1.unl.edu>
Subject: AGMODELS-L digest 564

Contents:
Re: models for Zimbabwe (Tim Hess <T.Hess@cranfield.ac.uk>)
Modelling crops in Zimbabwe ("Gommes, Rene (SDRN)" <Rene.Gommes@fao.org>)
Re: models for Zimbabwe ("Abraham Singels" <abram@landbou.uovs.ac.za>)
Crop modelling in Zimbabwe ("Gommes, Rene (SDRN)" <Rene.Gommes@fao.org>)
Re: Models (for Zimbabwe) (r.e.e.jongschaap@ab.dlo.nl)
Re: models for Zimbabwe (rnelson@mail.wsu.edu (Roger L. Nelson))
Ambrosia elatior (h3700tot@ella.hu)
Infiltration models (Luis Leopoldo Silva <llsilva@uevora.pt>)



Date: Thu, 12 Sep 1996 10:53:55 +0000 From: Tim Hess <T.Hess@cranfield.ac.uk> Subject: Re: models for Zimbabwe > I have been contacted by a researcher who is interested in modelling > cropping in Zimbabwe. He is aware of the various CERES models, but would > like to know if anything else is available. Are any other models validated > for crops such as maize, sorghum, millet and groundnuts in this type of > environment, a semiarid climate using small-scale irrigation? Any > suggestions will be welcomed, and I can pass them, and hopefully the models > themselves, on to him. The PARCH model has been developed to predict the growth and yield of cereal crops in the semi-arid tropics. It was originally developed for sorghum in Botswana but has also been used for maize (Kenya, Tanzania) and Millet (Nigeria). The program is particularly notable for its friendly interface (menu driven DOS but also a windows version), graphic simulation of the growing crop and easy access to a wide range of output parameters via a separate graphic / output routine. This makes it useful as a teaching tool in addition to research. I have been involved with PARCH as a user, but I was also involved in writing the manuals and evaluating its usefulness in Southern Africa generally. For details of the availability of the program contact Neil Crout at Nottingham University (UK); neil.crout@nottingham.ac.uk You might advise your friend to talk to Dr Chivinge (Dept. Crop Sci) or Dr Nyamugafata (Dept. Soil Sci) at the University of Zimbawe who both have a copy of the program. Tim. --------------------------------------------------------------------- Tim Hess Department of Water Management Silsoe College Cranfield University Silsoe Tel (0)1525 863292 Bedford, MK45 4DT Fax (0)1525 863300 UK e-mail t.hess@cranfield.ac.uk http://www.cranfield.ac.uk/safe/people/thess.htm ----------------------------------------------------------------------
Date: Thu, 12 Sep 1996 11:57:00 +0002 From: "Gommes, Rene (SDRN)" <Rene.Gommes@fao.org> Subject: Modelling crops in Zimbabwe Hello the list.... on the subject above: FAO has been operating two regional projects in the SADC region, one on Food Security and Early Warning (EW), and one on Remote Sensing Support to the EW system. The 1st project is composed of a central unit, and national components. About half the projects have been issuing crop forecasts. In Zimbabwe, the responsible FAO person was Michele Bernardi (now with the FAO agromet Group in Rome, michele.bernardi@fao.org). Contact him for ... contacts and other details Rene' G FAO
Date: Thu, 12 Sep 1996 13:01:04 GMT2 From: "Abraham Singels" <abram@landbou.uovs.ac.za> Subject: Re: models for Zimbabwe Hallo everybody Our department have been involved in crop modelling for the past 20 years. Models for maize, wheat, natural grassland and a generic model (for irrigation applications) have been developed, tested and applied in South Africa (under rainfed as well as irrigation conditions). The models (named PUTU) are housed in a user-interface which is currently being upgraded to a Windows type interface. The Dos version is available from me. For more information on the PUTU models contact me or jimmy@landbou.uovs.ac.za Abraham Singels Departement of Agrometeorology University of the Orange Free State P.O. Box 339 Bloemfontein 9300 South Africa Tel : 0027 (0)51 4012656 Fax : 0027 (0)51 4480692 E-mail : abram@landbou.uovs.ac.za
Date: Thu, 12 Sep 1996 13:45:00 +0002 From: "Gommes, Rene (SDRN)" <Rene.Gommes@fao.org> Subject: Crop modelling in Zimbabwe Hello the list! Could the discussion on crop modelling in Zimbabwe please be copied to agromet-L by those on both lists? Thanks R.
Date: Thu, 12 Sep 1996 14:32:02 +0000 (GMT) From: r.e.e.jongschaap@ab.dlo.nl Subject: Re: Models (for Zimbabwe) ------------------------------------------------------------------------------ Dear AGMODELlers, In response to your request I would like to point out that CAMASE (a Concerted Action for the development and testing of quantitative Methods for research on Agricultural Systems and the Environment) has registered nearly 200 models, on various specific themes in agriculture. Among them are the models dealing with the crops that you mentioned. A hard copy of the register can be obtained by contacting Marja C. Plentinger in The Netherlands (adress below) for Dfl 50.-. The register is also accessible on internet at URL http://www.co.dlo.nl/camase. The database has a search engine to narrow the collection down to those models of interest. Good luck, Raymond -------------------------------------------------------------------- Raymond E.E. Jongschaap & Marja C. Plentinger E-mail: r.e.e.jongschaap@ab.dlo.nl m.c.plentinger@ab.dlo.nl -------------------------------------------------------------------- DLO Research Institute for Agrobiology and Soil Fertility P.O. Box 14 NL-6700 AA Wageningen THE NETHERLANDS --------------------------------------------------------------------
Date: Thu, 12 Sep 1996 14:10:29 -0700 From: rnelson@mail.wsu.edu (Roger L. Nelson) Subject: Re: models for Zimbabwe >I have been contacted by a researcher who is interested in modelling >cropping in Zimbabwe. >Are any other models validated >for crops such as maize, sorghum, millet and groundnuts in this type of >environment, a semiarid climate using small-scale irrigation? CropSyst can and has been used for semiarid climates. Maize, sorghum, millet, and wheat crop parameters have been calibrated for simulation projects in Burkina Faso, Morocco, and Syria. For further information, the CropSyst WWW page is: http://www.cahe.wsu.edu/~bsyse/cropsyst/cropsyst.html _____________________________________________________________________ ______________ Roger Nelson rnelson@mail.wsu.edu ____ | Washington | Biological Systems Engineering Department \ | | State | http:www.cahe.wsu.edu/~bsyse/faculty/rnelson.html | // University | You may reply in: | ' Pullman, WA+| Work: (509)335-1100 English, French, Esperanto, \_ _________| Home: (509)332-8387 Swedish, Danish, Norwegian, `-----'99164-6120 FAX: (509)335-2722 Italian or Spanish
Date: Fri, 13 Sep 1996 09:38:30 +0200 (MET DST) From: h3700tot@ella.hu Subject: Ambrosia elatior Dear Agmodels subscribers: I am looking for information on Ambrosia elatior L (also known as Ambrosia artemisifolia L), a dangerous weed in Central Europe originating from Northern America. If you can suggest me some references on the plant, its physiology, spreading, the protection against its strongly allergenic pollens or perhaps a weed mailing list where I can inquire, please write to my e-mail address. with best regards Tibor Toth Research Institute for Soil Science and Agricultural Chemistry Budapest Address: h3700tot@ella.hu
Date: Fri, 13 Sep 1996 10:10:56 +0100 (WET DST) From: Luis Leopoldo Silva <llsilva@uevora.pt> Subject: Infiltration models Hi List I'm studying infiltration under center-pivot systems, and so, i'm looking for any model that simulates infiltration under sprinkler irrigation systems. I would appreciate if someone could tell me anything about the existence or not of such a model. Thanks Best Regards Luis Silva ----------------------------------------------------------------------------------------------------- Luis Leopoldo Silva e-mail: llsilva@uevora.pt Department of Rural Engineering Telephone: 351-66-7409823 University of Evora Fax: 351-66-711189 Apartado 94 - 7001 Evora Codex Portugal
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>From root@crcnis1.unl.edu Sat Sep 14 05:36 EDT 1996
Date: Sat, 14 Sep 1996 04:23:36 -0500
Message-Id: <199609140923.AA24664@crcnis1.unl.edu>
Subject: AGMODELS-L digest 565

Contents:
Re: Infiltration models ("Romeo R. Favreau" <rrfavreau@ucdavis.edu>)



Date: Fri, 13 Sep 1996 09:18:51 -0700 (PDT) From: "Romeo R. Favreau" <rrfavreau@ucdavis.edu> Subject: Re: Infiltration models Hi Luis, You might be interested in the following reference I found in the manual for Simpotato by Tom Hodges. Dr. Tom Hodges USDA-ARS Rt 2, Box 2953-A Prosser, WA 99350-9687 TELE: (509) 786-2226 FAX: (509) 786-3454 INTERNET: THODGES@ASRR.ARSUSDA.GOV . This model was developed by Dr. Marshall English at Oregon State University and is called IEM. It computes spray loss based on climatic conditions and sprinkler configuration. The IEM model requires significantly more data than the other methods. You must supply wind, relative humidity, and reference ET in the weather file [WEATHER.P] in addition to the regular information there. The addition to the current IBSNAT format statement (excluding the unused column for PAR) is '(....,6X,3(1X,F6.2))' for wind, humidity, and reference ET. In a special input file [EFFIRR.P], you must supply the number of types of nozzles [NNOZ], the diameter of each type of nozzle [NZD], the pressure for each type of nozzle [NZP], the percentage of each type of nozzle [NOZWT], the type of random distribution desired [IDTYPE] (uniform-1, normal-2, log-normal-3, and Pearsen type III-4), an unused output flag [IRHIST], several wind effects parameters [IA0, IA1, and IA2], wind drift loss percentage [WDFRAC], and wind drift reapplication [WREAPP]. The program allows for a label on the first line of the file. The second line contains the scalers NNOZ, IDTYPE, IRHIST, WDFRAC, WREAPP, IA0, IA1, and IA2 in the format '(3(I4),5(F8.4))'. The program reads NNOZ more lines up to a maximum of ten; these lines each contain NZP, NZD, and NOZWT for each type of nozzle using the format '(3(2X,F8.4))'. Note that the nozzle weights [NOZWT] must sum to one or computation is halted. These routines use a random seed based on seconds since mid-night. Good Luck --------------------------------------------------------------------- Romeo R. Favreau 707 Oriole Ave. Davis CA 95616 e-mail 76600.2252@compuserve.com or rrfavreau@ucdavis.edu --------------------------------------------------------------------- At 04:06 AM 9/13/96 -0500, you wrote: > >Hi List > >I'm studying infiltration under center-pivot systems, and so, i'm looking >for any model that simulates infiltration under sprinkler irrigation systems. >I would appreciate if someone could tell me anything about the existence >or not of such a model. > >Thanks > >Best Regards > >Luis Silva > >--------------------------------------------------------------------------- -------------------------- >Luis Leopoldo Silva e-mail: llsilva@uevora.pt >Department of Rural Engineering Telephone: 351-66-7409823 >University of Evora Fax: 351-66-711189 >Apartado 94 - 7001 Evora Codex >Portugal > > > --------------------------------------------------------------------- Romeo R. Favreau 707 Oriole Ave. Davis CA 95616 e-mail 76600.2252@compuserve.com or rrfavreau@ucdavis.edu ---------------------------------------------------------------------
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>From root@crcnis1.unl.edu Mon Sep 16 10:57 EDT 1996
Date: Mon, 16 Sep 1996 03:50:13 -0500
Message-Id: <199609160850.AA14315@crcnis1.unl.edu>
Subject: AGMODELS-L digest 566

Contents:
informations (bk4a004@bkaix1.ifb.uni-hamburg.de (Rainer Schipmann))



Date: Mon, 16 Sep 1996 10:23:31 +0200 (DFT) From: bk4a004@bkaix1.ifb.uni-hamburg.de (Rainer Schipmann) Subject: informations Hello to the Ag-modellers page, My name is Rainer Schipmann and I'm working in the Institute of Soil Science in Hamburg. We are developing here a carbon-cycle model of soils, which also involves the carbon-isotopes 13C and 14C. Now I'm searching all information about carbon-cycles in soils. May'be you know something. Thank you in advance Rainer -- Rainer Schipmann Institut fuer Bodenkunde Phone: +49 40 4123 3625 Allende-Platz 2 Fax: +49 40 4123 2024 D-20146 Hamburg E-Mail: bk4a004@uni-hamburg.de GERMANY
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>From root@crcnis1.unl.edu Tue Sep 17 05:05 EDT 1996
Date: Tue, 17 Sep 1996 03:52:33 -0500
Message-Id: <199609170852.AA09142@crcnis1.unl.edu>
Subject: AGMODELS-L digest 567

Contents:
 informations -Svar (Torsten Muller <Torsten.Muller@agsci.kvl.dk>)
Re: informations -Svar (bk4a004@bkaix1.ifb.uni-hamburg.de (Rainer Schipmann))
Re[2]: Infiltration models (englishm@ccmail.orst.edu (Marshall J. English))
Re: informations (Westingc@aol.com)
Re: carbon-cycle model of soils ("Metherell, Alister" <metherea@tui.lincoln.ac.nz>)
Re: carbon-cycle model of soils (gary_widders@juno.com (Gary Widders))
 (setna@starnet.net.ar)
Re: informations (gary_widders@juno.com (Gary Widders))
Re: Re[2]: Infiltration models (gary_widders@juno.com (Gary Widders))



Date: Mon, 16 Sep 1996 11:02:28 +0100 From: Torsten Muller <Torsten.Muller@agsci.kvl.dk> Subject: informations -Svar Rainer wrote: --------------------------------------------------------------------------------------- Hello to the Ag-modellers page, My name is Rainer Schipmann and I'm working in the Institute of Soil Science in Hamburg. We are developing here a carbon-cycle model of soils, which also involves the carbon-isotopes 13C and 14C. Now I'm searching all information about carbon-cycles in soils. May'be you know something. Thank you in advance Rainer -- Rainer Schipmann Institut fuer Bodenkunde Phone: +49 40 4123 3625 Allende-Platz 2 Fax: +49 40 4123 2024 D-20146 Hamburg E-Mail: bk4a004@uni-hamburg.de GERMANY ---------------------------------------------------------------------------------------- Visit the DAISY-model on WorldWideWeb: http://www.agsci.kvl.dk/planteer/daisy/daisy.htm Torsten Mueller Lab. of Soil Fertility and Plant Nutrition Copenhagen, Denmark tm@kvl.dk http://www.agsci.kvl.dk/~tomuj5
Date: Mon, 16 Sep 1996 11:37:55 +0200 (DFT) From: bk4a004@bkaix1.ifb.uni-hamburg.de (Rainer Schipmann) Subject: Re: informations -Svar Guten Tag Herr M|ller, vielen Dank f|r die Seite |ber das Daisy-Modell. Ich bin der Bodenkundler, mit dem Sie letztes Jahr in Halle auf einem Zimmer gewohnt haben. Ich hatte schon einige Seiten |ber das KVL, aber die Seite |ber das Modell hatte ich noch nicht. Beim durchbldttern hab ich noch entdeckt, da_ eine Seite (C++Sim) die Adresse gedndert hat. Neu: http://marlish.ncl.ac.uk:8080/C++SIM/ Mit freundl. Gr|_en Rainer Schipmann -- Rainer Schipmann Institut fuer Bodenkunde Phone: +49 40 4123 3625 Allende-Platz 2 Fax: +49 40 4123 2024 D-20146 Hamburg E-Mail: bk4a004@uni-hamburg.de GERMANY
Date: Sun, 4 Aug 1996 14:44:23 -0700 From: englishm@ccmail.orst.edu (Marshall J. English) Subject: Re[2]: Infiltration models Concerning the request from Silva for an infiltration model, and the reply from Favreau about the IEM model, I should add a few comments. IEM is designed to simulate the most important determinants of sprinkler system performance, which are (1) spray losses and wind drift, (2) the uneven distribution of applied water, (3) inhomogeneous soil characteristics, (4) surface ponding, runoff and redistribution, and (5) management practices. The model uses standard algorithms for infiltration, but in those parts of an inhomogeneous field where application rates exceed infiltration rates it specifically accounts for redistribution, surface ponding and the eventual infiltration of ponded water. Consequently it may be regarded as a model of infiltration under sprinklers in the real world. For Silva's convenience he might contact Luis Pereira at the Technical University of Lisbon who chaired a special ICID session at the Rio Congress at which this model was presented. He should have a copy of the model. For background information on the model see 'A Sprinkler Efficiency Model', M. J. English, A. R. Taylor and Smida Abdelli, ICID Bulletin 1992, Vol. 41, No. 2. -------------------------- Marshall English 541-737-2082 englishm@ccmail.orst.edu Bioresource Engineering Dept. Oregon State University COrvallis, OR 97331 USA
Date: Mon, 16 Sep 1996 12:13:31 -0400 From: Westingc@aol.com Subject: Re: informations Help...Cannot unsubscribe.
Date: Tue, 17 Sep 1996 09:36:48 +1200 From: "Metherell, Alister" <metherea@tui.lincoln.ac.nz> Subject: Re: carbon-cycle model of soils Rainer Schipmann from the Institute of Soil Science in Hamburg mentioned that they are developing a model of the carbon cycle which includes 13C and 14C. The CENTURY Soil Organic Matter model Agroecosystem Version 4.0 developed at the Natural Resource Ecology Laboratory, Colorado State University has an option to include either 14C or 13C isotopes in the simulation. The CENTURY model is a general model of the plant-soil ecosystem that has been used to represent carbon and nutrient dynamics for different types of ecosystems (grasslands, forest, crops, and savannas). It simulates C, N, P and S dynamics through an annual cycle to centuries and millennia. The model includes three soil organic matter pools (active, slow and passive) of varying turnover times, above and below ground litter pools and a surface microbial pool which is associated with decomposing surface litter. In the 14C mode the model can simulate the effect of bomb 14C or the addition of 14C labelled litter. In 13C mode the effect on delta 13C values of soil and litter can be simulated when plant species change from C3 to C4 plant species or vice versa. Full details of the representation of 13C isotopic fractionation are in the users' manual: Metherell A K, Harding L A, Cole C V and Parton W J (1993) CENTURY Soil organic matter model environment. Technical documentation. Agroecosystem version 4.0. Great Plains System Research Unit Technical Report No.3. USDA-ARS, Fort Collins, Colorado. The manual and software are available from: Dr. William J. Parton Natural Resource Ecology Laboratory Colorado State University Fort Collins, CO 80523 USA FAX: (303) 491-1965 E-mail: century@nrel.colostate.edu Check out the CENTURY home page at http://www.nrel.colostate.edu/PROGRAMS/MODELING/CENTURY/CENTURY.html Alister Metherell AgResearch Lincoln New Zealand > > Date: Mon, 16 Sep 1996 10:23:31 +0200 (DFT) > From: bk4a004@bkaix1.ifb.uni-hamburg.de (Rainer Schipmann) > Subject: informations > > Hello to the Ag-modellers page, > > My name is Rainer Schipmann and I'm working in the Institute of Soil > Science in Hamburg. > > We are developing here a carbon-cycle model of soils, which also involves > the carbon-isotopes 13C and 14C. > > Now I'm searching all information about carbon-cycles in soils. > May'be you know something. > > Thank you in advance > > Rainer > > -- > Rainer Schipmann Institut fuer Bodenkunde > Phone: +49 40 4123 3625 Allende-Platz 2 > Fax: +49 40 4123 2024 D-20146 Hamburg > E-Mail: bk4a004@uni-hamburg.de GERMANY > > ------------------------------ > End of Digest > ************************ >
Date: Mon, 16 Sep 1996 18:28:11 PST From: gary_widders@juno.com (Gary Widders) Subject: Re: carbon-cycle model of soils How do I remove my name from the agricultural E-Mail list? It's not my "field" of interest.. pun intended. If you can help, thanks in advance. In either case, thanks for your time.
Date: Mon, 16 Sep 1996 23:36:46 +0300 From: setna@starnet.net.ar Subject: YOU SAID: "How do I remove my name from the agricultural E-Mail list? It's not my "field" of interest.. pun intended. If you can help, thanks in advance. In either case, thanks for your time." THIS IS MY PROBLEM FROM TWO MONTH OR MORE. HOW?????
Date: Mon, 16 Sep 1996 14:17:23 PST From: gary_widders@juno.com (Gary Widders) Subject: Re: informations On Mon, 16 Sep 1996 03:49:03 -0500 bk4a004@bkaix1.ifb.uni-hamburg.de (Rainer Schipmann) writes: >Hello to the Ag-modellers page, > >My name is Rainer Schipmann and I'm working in the Institute of Soil >Science in Hamburg. > >We are developing here a carbon-cycle model of soils, which also >involves >the carbon-isotopes 13C and 14C. > >Now I'm searching all information about carbon-cycles in soils. >May'be you know something. >Thank you in advance >Rainer Hi, I was wondering how do I drop this E-Mail list?
Date: Mon, 16 Sep 1996 14:19:27 PST From: gary_widders@juno.com (Gary Widders) Subject: Re: Re[2]: Infiltration models On Mon, 16 Sep 1996 11:57:25 -0500 englishm@ccmail.orst.edu (Marshall J. English) writes: >Concerning the request from Silva for an infiltration model, and the >reply from Favreau about the IEM model, I should add a few comments. >IEM is designed to simulate the most important determinants of >sprinkler system performance, which are (1) spray losses and wind >drift, (2) the uneven distribution of applied water, (3) inhomogeneous >soil characteristics, (4) surface ponding, runoff and redistribution, >and (5) management practices. The model uses standard algorithms for >infiltration, but in those parts of an inhomogeneous field where >application rates exceed infiltration rates it specifically accounts >for redistribution, surface ponding and the eventual infiltration of >ponded water. Consequently it may be regarded as a model of >infiltration under sprinklers in the real world. > >For Silva's convenience he might contact Luis Pereira at the Technical >University of Lisbon who chaired a special ICID session at the Rio >Congress at which this model was presented. He should have a copy of >the model. For background information on the model see 'A Sprinkler >Efficiency Model', M. J. English, A. R. Taylor and Smida Abdelli, ICID >Bulletin 1992, Vol. 41, No. 2. >Marshall English 541-737-2082 Hi.. maybe you can help me. How do I drop this agricultural E-Mail list? It's all very interesting, but it's not "my field". Pun intended.
End of Digest
>From root@crcnis1.unl.edu Wed Sep 18 05:08 EDT 1996
Date: Wed, 18 Sep 1996 03:53:32 -0500
Message-Id: <199609180853.AA07816@crcnis1.unl.edu>
Subject: AGMODELS-L digest 568

Contents:
How To Unsubscribe (Jim Meade <jnmeade@blue.weeg.uiowa.edu>)
how to unsubscribe (Maribeth Milner <milner@townsqr.com>)
quitting email lists (Tom Hodges <thodges@tricity.wsu.edu>)



Date: Tue, 17 Sep 1996 06:50:33 -0500 (CDT) From: Jim Meade <jnmeade@blue.weeg.uiowa.edu> Subject: How To Unsubscribe When you signed up for agmodels, you got a message that told you how to unsubscribe. It is a mark of politeness to save and refer to these messages rather than bother the whole list. You send a message to: listserv@unl.edu. Note this is not the same address you use to send messages to the general list. You do not need a subject line, so leave it blank. In the body of the message, you put this one line: unsubscribe ag-models. If for some reason this doesn't work, send your message to the listserv address but use the one line 'help' in the body and you will get a list of instructions on how to set your parameters in the list. On Mon, 16 Sep 1996 setna@starnet.net.ar wrote: > YOU SAID: > "How do I remove my name from the agricultural E-Mail list? > It's not my "field" of interest.. pun intended. If you can help, > thanks in advance. In either case, thanks for your time." > > THIS IS MY PROBLEM FROM TWO MONTH OR MORE. HOW????? > Jim - Farmer - Iowa City, IA, jnmeade@blue.weeg.uiowa.edu
Date: Tue, 17 Sep 1996 08:16:32 -0500 From: Maribeth Milner <milner@townsqr.com> Subject: how to unsubscribe Have you tried sending the message, unsubscribe agmodels-l, to listserv@unl.edu? Also, you can send the message, help, to the same address and get instructions on how to unsubscribe, see the archives, etc. Maribeth
Date: Tue, 17 Sep 1996 07:43:59 -0700 (PDT) From: Tom Hodges <thodges@tricity.wsu.edu> Subject: quitting email lists Generally send a message saying signoff listname to the listserv or listproc address maintaining that list potential problem: if your email software puts a different From: address in your messages than the address that the list has you subscribed under, the list software will reject your request as it thinks you are someone different possible solutions: 1. ask the listowner to manually delete you (jp@unl.edu) 2. send a message saying review listname to the list software address to get a list subscribers' addresses and then try to make your email software put your subscribed address into the From: line in your email -- if this successful then the list software will recognize your request as coming from you Tom Hodges
End of Digest
>From root@crcnis1.unl.edu Thu Sep 19 05:05 EDT 1996
Date: Thu, 19 Sep 1996 03:53:01 -0500
Message-Id: <199609190853.AA07742@crcnis1.unl.edu>
Subject: AGMODELS-L digest 569

Contents:
Wind Erosion: An International Symposium (John Tatarko <jt@weru.ksu.edu>)



Date: Wed, 18 Sep 1996 09:44:43 -0500 (CDT) From: John Tatarko <jt@weru.ksu.edu> Subject: Wind Erosion: An International Symposium Dear list members, This is a friendly reminder that the Sept. 30 deadline is approaching for submission of the intent to participate form for the 1997 International Wind Erosion Symposium. This information is needed for planning purposes and will allow us to prepare for your attendance and presentations. This symposium is promising to be truly an international event as we have participation forms from 16 countries world wide as of today. I encourage and look forward to your participation. Please note that more information can be obtained from the WERU World Wide Web Site as well as E-mail, phone, and postal mail (see the bottom of this announcement). The Web site also has an on line submission form for your convenience. Sincerely, John Tatarko ------------------------------- Begin ---------------------------- Announcement/Call for papers Wind Erosion: An International Symposium/Workshop Commemorating the 50th anniversary of the USDA's Wind Erosion Research at Kansas State University Manhattan, Kansas, USA 3-5 June 1997 Background Wind erosion is a serious problem in many parts of the world. It is worse in arid and semiarid regions. Areas most susceptible to wind erosion on agricultural land include much of North Africa and the Near East; parts of southern, central, and eastern Asia; the Siberian Plains; Australia; northwest China; southern South America; and North America. Wind erosion physically removes from the field the most fertile portion of the soil. Some soil from damaged land enters suspension and becomes part of the atmospheric dust load. Dust obscures visibility and pollutes the air, causes automobile accidents, fouls machinery, and imperils animal and human health. During the 1930s, a prolonged dry spell in the prairies of North America culminated in dust storms and soil destruction of disastrous proportions. The "black blizzards" of the resulting Dust Bowl inflicted great hardships on the people and the land. Following the "dirty thirties", the U.S. Department of Agriculture started an intensive research program on wind erosion in cooperation with Kansas State University. Today, this laboratory, officially known as the Wind Erosion Research Unit (WERU), continues to serve as a focal point for wind erosion research, both nationally and internationally. This symposium is held in commemoration of the 50th anniversary of the USDA's Wind Erosion Research at Kansas State University. The purpose is to bring together leading scientists, conservationists, and policy makers to: identify the present and future wind erosion threat to sustainability; summarize current understanding of wind erosion processes, prediction, and control; identify societal needs and develop strategies for sustaining agriculture, protecting the environment, and conserving the natural resource against the ravages of wind erosion. Program Scientists, engineers and conservationists are invited to present papers and/or attend sessions related to the occurrence, measurement, and prediction and control of wind erosion and related processes and consequences. Plenary, concurrent, and poster sessions are planned. Keynote addresses will feature various aspects of wind erosion. Publication Abstracts for all presentations will be available at the symposium. The Symposium manuscripts will be reviewed and considered for a special publication that will be mailed to all registered symposium participants. CALL FOR PAPERS Authors intending to offer an oral/poster presentation are required to submit an abstract (English preferred) of no more than one-page by 31 December 1996. Abstracts should include in this order: author, title, text, and corresponding author's address and telephone number. Submit abstracts (preferably by e-mail) and participation form to: sym@weru.ksu.edu or symposium abstracts c/o USDA, ARS Wind Erosion Throckmorton Hall, KSU Manhattan, Kansas 66506 USA Manuscripts submitted will be reviewed and considered for special publication. General The registration fee for the conference will be approximately $200. This fee includes three lunches, one banquet, one picnic dinner/tour of the Konza Prairie, refreshment breaks, a copy of the abstracts, and the special Symposium publication. Housing will be available at campus residence halls for approximately $125 (4 nights, 3 breakfasts). Rooms are also available at the local Ramada Inn for approximately $59 per night plus tax; no meals are included. All fees are in US dollars. Registration forms, abstract forms, and symposium brochure will be mailed to those who return the "Intent to Participate" form (see attached form). Future announcements and current information about the symposium can be accessed through the World Wide Web URL: http://www.weru.ksu.edu/ and email: sym@weru.ksu.edu. IMPORTANT DATES - General announcement: May 1996 - Deadline to return "Intent to Participate" form: 30 September 1996 - Brochure mailed: 31 October 1996 - Abstract received: 31 December 1996 - Acceptance Notice mailed: 31 January 1997 - Symposium: 3-5 June 1997 - Manuscripts Due: 30 June 1997 Tentative Program 3 June 1997 08:00 Registration 09:00 Opening keynote address: historical perspective Extent and severity of wind erosion world wide (regions, soil degradation, threat to sustainability, visibility, off-site damage, crop damage, health, etc.) 12:00 Buffet lunch 13:30 Physics of processes Measurements 19:00 Symposium Banquet/Entertainment/Dust Bowl Story 4 June 1997 08:30 Modeling wind erosion and associated processes Supporting data bases (crop, soil, climate, management, etc.) 12:00 Buffet lunch 13:30 Climatology relating to wind erosion Wind erosion and global change 15:30 Poster Presentations 17:30 Tour of the famous Konza Prairie and outdoor buffalo barbecue 5 June 1997 07:30 Posters continued 08:30 Wind erosion control (agroforestry, residues, tillage, wind barriers, soil stabilizers, etc.) Socioeconomic barriers 12:00 Buffet lunch 13:30 Workshop planning session to develop strategies for coping with wind erosion (research, training, technology transfer, policy, etc.) 15:30 Closing session: conclusions and recommendations Possible post symposium training workshop on the USDA Wind Erosion Prediction System (WEPS). Possible field trips/facility tours include: 1. Agroforestry 2. Konza Prairie 3. Tuttle Creek spillway canyon 4. Research activities in Throckmorton Plant Science Center (environmental physics, agronomy, agroforestry, GIS, GPS, etc.) 5. Wind erosion control methods at local field sites 6. Grain Marketing and Production and Research Center 7. Plant Materials Center operated by the Natural Resources Conservation Service. 8. American Institute of Baking 9. CO2 enrichment site 10. Sensitive lysimeter study site ----------------------------- cut here and mail ------------------------------ Intent to Participate Form Wind Erosion: An International Symposium/Workshop 3-5 June 1997 - Manhattan, Kansas, USA Title: __________ Family Name: ___________________________ First Name: ____________________________ Organization: _________________________________________________________ Address: _____________________________________________________________ _____________________________________________________________ Phone: _____________________________________ Fax: _______________________________________ E-Mail: _____________________________________ I plan to attend the Symposium/Workshop yes( ) no( ) I propose a contribution oral presentation( ) poster( ) For additional information, please return this form (e-mail preferred) before 30 September 1996. Abstract will be due by 31 December 1996. E-Mail: sym@weru.ksu.edu FAX: USA 913-532-6528 Phone: USA 913-532-6495 Postal Address: USDA-ARS, NPA Wind Erosion Research Unit Throckmorton Hall Kansas State University Manhattan, KS 66506 USA World Wide Web URL: http://www.weru.ksu.edu/ --------------------------- End ----------------------------------
End of Digest
>From root@crcnis1.unl.edu Fri Sep 20 05:05 EDT 1996
Date: Fri, 20 Sep 1996 03:52:12 -0500
Message-Id: <199609200852.AA08851@crcnis1.unl.edu>
Subject: AGMODELS-L digest 570

Contents:
Training Program on Optimizing Management for Precision ("Dr. Gerrit Hoogenboom" <gerrit@tangine.bae.griffin.peachnet.edu>)



Date: Thu, 19 Sep 1996 15:31:59 -0400 From: "Dr. Gerrit Hoogenboom" <gerrit@tangine.bae.griffin.peachnet.edu> Subject: Training Program on Optimizing Management for Precision --=====================_843172216==_ --=====================_843172216==_ Announcement for the Training Program: "Optimizing Management for Precision Farming: A Systems Approach" March 10 - 15, 1997, Gainesville, Florida ****************************************************************** ******** WWW-SITE: http://www.agen.ufl.edu/~workshop/ ******** ****************************************************************** ### SPONSORED BY: - University of Florida, Gainesville - Wageningen Agricultural University - University of Georgia - International Fertilizer Development Center - International Consortium for Agricultural Systems Applications (ICASA) ### RATIONALE Precision Farming has a goal of optimizing the use of soil and water resources and chemical inputs (fertilizers and pesticides) on a site-specific basis. This goal is now technically feasible due to recent advances in sensor technology and controllers that allows variable rate application of materials across a field. Technological advances in GPS, remote sensing, grain yield monitoring, and GIS provide new opportunities for characterizing variability in crop fields. These new tools have now shown that many crop fields are highly variable, thereby reducing overall field yield and resource use efficiency. However, once one has a measure of the spatial variability, optimizing management requires an understanding of what caused the variability first of all, and a method to determine optimal management over the field. Crop simulation models are needed to help consultants, researchers, and other farm advisors determine the pattern of field management that optimizes production or profit. However, the effective use of these tools requires their evaluation in fields to be optimized, their integration with other information tools such as GIS, geostatistics, remote sensing, and optimization analysis. A comprehensive crop model application package has been developed by researchers from several countries. This system, DSSAT v3.1, incorporates crop/soil/weather models, data input and management software, and analysis programs for optimizing production or profit for homogenous fields. It also has features linking DSSAT crop models with GIS, geostatistics, and other software to enable users to optimize management over spatially-variable fields considering a number of important factors that affect crop development and yield. This training program is designed to provide participants with necessary concepts and a practical working knowledge of these tools, with case study projects. It will also provide them with information on how to link crop model components with other packages being designed and developed for practical application to precision farming. ### PROGRAM GOAL AND OBJECTIVES The overall goal of this training program is to increase the capabilities of participants to apply quantitative tools to optimize management of spatially-variable fields, taking advantage of new sources of information, methods for its use, and equipment for precision farming. Specifically, the program will focus on: 1. Information tools for managing spatial data, including GIS, Remote Sensing, and Yield monitoring data. 2. Analysis software to gain insight into the magnitude of spatial variability and possible reasons for this variability, including kriging, correlation, and crop and soil model approaches. 3. Description of CERES and CROPGRO crop simulation models, focusing on corn, wheat, and soybean crops, and information required for their applications to spatially-variable fields. 4. Operation of the DSSAT v3.1 software system, including components linking DSSAT crop models with GIS and spatial analysis programs. 5. Example applications of DSSAT v3.1 to optimize management in specific field situations. ### PROGRAM CONTENT This training program will describe concepts of spatial variability and precision farming. It will describe practical approaches for characterizing spatial variability and methods for analyzing reasons for the variability. The program will make extensive use of "hands-on" practical sessions that demonstrate the concepts, software for analyzing spatial data, and models for determining management that optimizes production, taking into account possible effects on the environment. The program will make extensive use of the Decision Support System for Agrotechnology Transfer (DSSAT) v3.1 software package. This comprehensive package includes the CERES (maize, wheat, rice, sorghum, barley, and millet) CROPGRO (soybean, peanut, dry bean, and tomato), SUBSTOR (potato), and CROPSIM (cassava) models for crop growth and yield. These models respond to weather, soil water holding and root growth characteristics, cultivar, water management, nitrogen management, and row spacing/plant population. The program will describe information inputs required by these models, outputs predicted by the models, and methods to interpret uncertainty and risk associated with uncertain inputs. The DSSAT also includes links to GIS and remote sensing information, which allows mapping of spatially variable inputs across a field and mapping of predicted outputs from the models, such as yield, nitrogen leaching, water use, etc. The entire DSSAT v3.1 will be provided to each participant along with documentation on its use. The program length will be six working days. ### OUTLINE Day 1 Concepts of Precision Farming GPS, Yield Maps, GIS, and Remote Sensing Tools Day 2 Characterizing spatial variability of fields Spatial Interpolation of Point Data, Relating Remote Sensing Images to Yield Maps, GIS Technology for Digital Terrain Map Analysis, Spatial Data Bases for Crop Model Analyses Day 3 Crop Simulation Models Overview of Concepts DSSAT v3.1 Operation Example Corn, Soybean, and Wheat Crop Simulations Day 4 Soil Water and Nutrient Components Data in DSSAT v3.1 for Applying Crop Models Model Evaluation Exercises Day 5 Optimizing Management for a Homogenous Field Obtaining Inputs for Spatially Variable Fields Simulating Different Segments of a Spatially-Variable Field Economic Analysis Day 6 Optimizing Management for Spatially Variable Fields: Case Studies ### QUALIFICATIONS FOR APPLICATION 1. Participants should be university graduates currently engaged in crop consulting, research on precision farming, providing advice to farmers on precision farming, or development of information tools and methods for precision farming. 2. They should have an understanding of crop production systems and be relatively familiar with terminology in crop production. 3. They should be familiar with personal computers, including DOS and Windows operating environments, and with the operation of software packages in these environments. Computer programming skills are not required. 4. They should be fluent in English. ### TRAINING FACULTY Dr. James W. Jones, University of Florida, Dr. Kenneth J. Boote, University of Florida Dr. Johan Bouma, Wageningen Agricultural University, Dr. Harry Booltink, Wageningen Agricultural University Dr. Gerrit Hoogenboom, University of Georgia Dr. Philip Thornton, International Livestock Research Center, Kenya Dr. Paul Wilkens, International Fertilizer Development Center, Dr. Harold Reetz, Potash & Phosphate Institute and other experts from University of Florida, Wageningen Agricultural University, and ICASA ### REGISTRATION There are four ways to register: Mail: Optimizing Management for Precision Farming: A Systems Approach International Programs/Training Unit P.O. Box 110329 Gainesville, FL 32611-0329, United States of America Fax: +1 (352) 392-7127 Tel: +1 (352) 392-1965 Email: apeters@gnv.ifas.ufl.edu In order to register, you have to provide all information on the registration form. This form can be obtained by writing to the address above, or preferably, by downloading the registration form from our WWW-site: http://www.agen.ufl.edu/~workshop/ QUARANTY AND REGISTRATION DEADLINE: To guarantee enrollment, payment must be made with a purchase order, check or credit card by February 1, 1997. Enrollment is limited to 25 participants. Priorities for enrollment will be on the basis of date of receipt of payment. REGISTRATION FEE: The fee for this training workshop is $1,900. It covers registration for the six-day program, resource material including DSSAT v3.1 software, and tea/coffee breaks. It does not cover breakfast, lunch, dinner, or lodging during the program nor air transportation and health insurance. Each participant is responsible for these costs. Food and hotel lodging will average about $75/day. LODGING: Rooms for participants will be reserved in the Rush Lake Motel. This is a good quality motel which is located close to the university campus and several restaurants. It is a 15-minute walk to the university campus or the city bus can be used ($0.75 per ride). Special arrangements can be made for parking on campus. Please indicate on your registration form if you would like to have lodging reserved at the Rush Lake Motel. Payment for lodging is to be made directly to the motel (advanced payment is not required). VISA: A visa is required for entry into the United States. Each Participant must obtain a visitor visa from the Embassy or Consulate of the United States in his or her country of residence. PROGRAM CANCELLATION POLICIES: Cancellation of pre-registration must be made at least 72 hours before the program begins in order to avoid being billed 25 percent of the registration fee. Substitution of personnel is recommended in lieu of cancellation. Pre-registrants who fail to attend or to send a substitute are liable for full registration fee. To cancel a registration, call (352) 392-7127. In the event the program is cancelled for any reason, the organizers will not be responsible for any cancellation changes or charges assessed by airlines or travel agencies. ### MORE INFORMATION More information on the training program can be found in the above mentioned WWW-site. If you have specific questions on program information (NOT on registration and facilities information!!!), your may direct them to: Dr James W. Jones Agricultural & Biological Engineering Dept. University of Florida Gainesville, FL 32611-0570 Fax: +1 (352) 392-4092 Email: jwj@agen.ufl.edu --=====================_843172216==_ ======================================================================== Gerrit Hoogenboom Associate Professor Department of Biological and Agricultural Engineering The University of Georgia Griffin, Georgia 30223-1797, USA Phone: 770-229-3438 (New !) FAX: 770-228-7218 E-mail: gerrit@bae.griffin.peachnet.edu ======================================================================== --=====================_843172216==_--
End of Digest
>From root@crcnis1.unl.edu Sat Sep 21 05:07 EDT 1996
Date: Sat, 21 Sep 1996 03:53:01 -0500
Message-Id: <199609210853.AA02556@crcnis1.unl.edu>
Subject: AGMODELS-L digest 571

Contents:
(no subject) ("Stephen W. Ragan, II" <ragan@minot.com>)



Date: Fri, 20 Sep 1996 17:30:31 -0500 From: "Stephen W. Ragan, II" <ragan@minot.com> Subject: (no subject) unsubscribe <agmodels-l@unl.edu>
End of Digest
>From root@crcnis1.unl.edu Sun Sep 22 21:42 EDT 1996
Date: Sun, 22 Sep 1996 20:29:47 -0500
Message-Id: <199609230129.AA19251@crcnis1.unl.edu>
Subject: AGMODELS-L digest 572

Contents:
 ("Suchot S." <u3725037@maia.cl.au.ac.th>)



Date: Mon, 23 Sep 1996 08:18:59 +0700 (TST) From: "Suchot S." <u3725037@maia.cl.au.ac.th> Subject: unsubscribe u3725037@maia.cl.au.ac.th
End of Digest
>From root@crcnis1.unl.edu Mon Sep 23 21:45 EDT 1996
Date: Mon, 23 Sep 1996 20:30:50 -0500
Message-Id: <199609240130.AA13951@crcnis1.unl.edu>
Subject: AGMODELS-L digest 573

Contents:
 (=?iso-8859-1?Q?Jos=E9_Joaquin_Rosas_Montoya?= <jrosas@DNP.GOV.CO>)



Date: Mon, 23 Sep 1996 08:28:00 -0500 From: =?iso-8859-1?Q?Jos=E9_Joaquin_Rosas_Montoya?= <jrosas@DNP.GOV.CO> Subject: SUBSCRIBE agmodels-l@unl.edu
End of Digest
>From root@crcnis1.unl.edu Tue Sep 24 21:46 EDT 1996
Date: Tue, 24 Sep 1996 20:31:32 -0500
Message-Id: <199609250131.AA14496@crcnis1.unl.edu>
Subject: AGMODELS-L digest 574

Contents:
Mushroom models available ? (D.W.G.VANKRAALINGEN@ab.dlo.nl)



Date: Tue, 24 Sep 1996 09:21:39 +0000 (GMT) From: D.W.G.VANKRAALINGEN@ab.dlo.nl Subject: Mushroom models available ? Dear Net, Is there anyone that is aware of the existence of simulation models that describes the growth of mushrooms ? Any help is appreciated, Daniel *---------------------------------------------------------------* | Sender : D.W.G. van Kraalingen, MSc, Systems Simulation & | | Software Quality officer. Research Institute for | | Agrobiology and Soil Fertility (AB-DLO). | | P.O. Box 14, 6700 AA, Wageningen, The Netherlands | | | | e-mail : d.w.g.vankraalingen@ab.dlo.nl | | Tel. : +31 317 475949 Fax: +31 317 423110 | *---------------------------------------------------------------*
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>From root@crcnis1.unl.edu Wed Sep 25 21:45 EDT 1996
Date: Wed, 25 Sep 1996 20:31:29 -0500
Message-Id: <199609260131.AA16725@crcnis1.unl.edu>
Subject: AGMODELS-L digest 575

Contents:
(no subject) (Stephen Ragan <ragan@minot.com>)
Models for Zimbabwe ("Hollington, Phil" <pah@bangor.ac.uk>)



Date: Tue, 24 Sep 1996 20:45:06 -0700 From: Stephen Ragan <ragan@minot.com> Subject: (no subject) unsubscribe agmodels-l@unl.edu
Date: Wed, 25 Sep 96 09:08:00 PDT From: "Hollington, Phil" <pah@bangor.ac.uk> Subject: Models for Zimbabwe Many thanks to all those who responded to this post, both through the list and personally. There were some useful comments and contacts, which I hope to be able to take further in a visit to Zimbabwe in the New Year. Phil
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