Dear All

 

I am using DSSAT for simulation of soybeans and maize across different
soil types.

 

I have been looking at the outputs and would like to know if anyone
could provide me with further information to explain the following
outputs from the growth aspects output file;  

Water stress - photosynthesis WSPD

Water stress - growth WSGD

Nitrogen stress factor NSTD

Excess water stress EWSD

 

One of the reasons why I am asking is that in some cases I have outputs
where both water stress and excess water stress are high, and others
where water stress is high and excess water stress is low.  I am
assuming excess water stress is when there is high soil water close to
saturation, which seems to match my outputs.  However, I am unsure if
the water stress growth and photosynthesis in these outputs occur during
both wet conditions and drought conditions.

 

Any advice will be much appreciated.

 

Thanks

Wendy

 

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