I think these parameters are crop specific in a particular soil
environment that are required for tthat crop to  germinate. Keeping in view
the crop temperature requirements and water requirements to germinate in
that particular environment you have to specify these parameters. And also
tell model the span in which you want to sow the crop, in this span whenever
these situations met, crop will be automatically sown.

Humaira
-- 
Humaira Sultana
Research Felllow-Agriculture
Global Change Impact Studies Centre
1st Floor, Saudi Pak Tower, Jinnah Avenue, Blue Area,
Islamabad, Pakistan.
Ph: 92-51-9219785
Fax:92-51-9219787



On 7/4/07, Pablo Rischbeck <[log in to unmask]> wrote:
>
> Dear colleagues and DSSAT users,
>
> I want to use the automatic planting (sowing) option for maize and
> spring barley.
> My soil is a chernozem (silty loam) in eastern austria.
> The usual sowing date for spring barley in this region is early march.
> Maize is sown end of April.
> Which parameters for:
> soil temperature (Maximum and Minimum in °C)
> and
> soil water (Upper %, Lower % and Depth in cm)
> should I use to reach these sowing dates?
>
> thanks a lot for your advise, Pablo Rischbeck.
>