Hi,
Almost literally the same text can be found also in another publication,
which may be more widely available in various libraries:
Richie J.T. and Crum J. 1989 Converting soil survey characterization data
into IBSNAT crop model input. In: Bouma J. and Bregt A.K. (Eds.) Land
Qualities in Space and Time. p.155-167.
Arjan Gijsman
Centro Internacional de Agricultura Tropical (CIAT)
Cali, Colombia
-----Original Message-----
From: Richard Ogoshi [mailto:[log in to unmask]]
Sent: 28 July, 1999 4:44 PM
To: [log in to unmask]
Subject: Re: DSSAT3.5 Soybean Model
Hello Andy,
You can find a little more information about the root growth factor in
this publication:
Ritchie, J.T., D.C. Godwin, and U. Singh. 1990. Soil and water inputs
for the IBSNAT crop models.
p.31-46. In International Benchmark Sites Network for
Agrotechnology Transfer (IBSNAT) Project,
Proceedings of the IBSNAT Symposium: Decision Support System for
Agrotechnology Transfer,
Las Vegas, Nevada. 16-18 Oct. 1989. Part I: Symposium Proceedings.
Department of Agronomy and
Soil Science, College of Tropical Agriculture and Human Resources,
University of Hawaii, Honolulu,
Hawaii.
The information is a little old, but as far as I know it still applies.
Hope this helps.
Sincerely,
Richard
At 10:13 AM 7/28/99 -1000, you wrote:
>I am running DSSAT version 3.5 and am interested in finding out more
information about the Root growth factor as described on Page 46 of Volume
2 in "DSSAT Version 3" manual. I would like to know how to approximate
this factor for the Soil.sol file and what the values from 0.0 to 1.0.
>
>Can you tell me where I can locate this information?
>
>I would be much obliged!
>
>Andy Bootsma
>
>
>
>********************************************************
>Andrew Bootsma
>Agriculture and Agri-Food Canada
>Eastern Cereal and Oilseed Research Centre
>K.W. Neatby Bldg., Rm 4129B
>960 Carling Ave.
>Ottawa, ON CANADA K1A 0C6
>
>Tel: (613) 759-1526
>Fax: (613) 759-1924
>email: [log in to unmask]
>Homepage: http://res.agr.ca/ecorc/staff/boot-a.htm
>********************************************************
>
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