Hello Dewi Hartkamp,
 
   Aloha!
 
   One reference that you may be interested in is:
 
      Lal, H., G. Hoogenboom, J.-P. Calixte, J.W. Jones, and F.H. Beinroth.
         1993. Using crop simulation models and GIS for regional productivity
         analysis.  Trans. ASAE 36:175-183.
 
   Hope this helps.
 
Sincerely,
Richard
 
At 04:54 AM 9/26/97 -1000, you wrote:
>I'm sorry I guess I wasn't very clear on my request.
>
>I'm looking for references about linkages between CROPGRO
>and GIS programs to predict soybean yield.
>Thanks!
>
>Dewi Hartkamp
>CIMMYT Mexico
>
>
>
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