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Date: | Tue, 11 Apr 2000 21:07:14 -0700 |
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Dewi,
I suggest that you do a senssitivity analysis for your specific
conditions to evaluate its consistency with what farmers do now.
Best regards.
Jim Jones
Date sent: Tue, 11 Apr 2000 14:14:12 -0700
Send reply to: DSSAT - Crop Models and Applications <[log in to unmask]>
From: "Hartkamp, Dewi" <[log in to unmask]>
Subject: DSSAT automatic planting conditions
To: [log in to unmask]
> Hello DSSAT users
>
> Does anyone have experience with the automatic planting routine option for
> use in modelling 'subsistence farmer/rainfed cropping systems'.
>
> E.g. a sensitivity analysis or validation against real planting conditions
> when farmers plant.
>
> Default :
> Earliest -
> Latest -
> Lower soil water content 40
> Uppermost soil water content 100
> Soil management depth 30
> Max Soil temp 40
> Min Soil temp 10
>
> (I have put max. soil temp to 45)
>
> I am looking at farming systems in Honduras and I think that the 30 cm is
> too strict for planting.
>
> I expect that subsistence farmers wait for 2 or 3 rains and then plant.
>
> Therefor I am thinking of putting the s.m. depth to 20 cm in stead of 30 cm.
>
> However I am open to your suggestions.
> Thank you very much,
>
> Dewi Hartkamp
> CIMMYT - International Maize and Wheat Improvement Center
> Mexico
James W. Jones
Distinguished Professor
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Agricultural & Biological Engineering Department
P.O.Box 110570
University of Florida
Gainesville, FL 32611
email: [log in to unmask]
FAX: (352) 392-4092
Telephone: (352) 392-8694
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