Subash,

I suggest that you use the Environmental modification section in the
experimental details file to check the model's sensitivity to
temperature, solar radiation, and precipitation. This will allow you to
define a starting and ending date to evaluate the response for different
periods during the growing season.

Gerrit



n_suby . wrote:
> Dear all,
>
> I am using DSSATv4.0 to study the sensitivity analysis using DSSAT,
> particularly for rice and wheat.  I have estimated the sensitivity of the
> model for solar radiation, maximum and minimum temperature for rice and
> wheat.  But how to estimate the sensitivity of the model for precipitation
> ie.  every increase or decrease of rainfall at an increment of 2 percent
> variation of rainfall from normal during the crop growth period.  One more
> thing is whether I can estimate the sensitivity of the model at different
> crop stages of rice by different combinations of per cent variation of
> rainfall from normal.
>
> Thanks.
>
> With regards
>
> Subash
>
>