I think you have to check your input files thoroughly, it includes weather
file, soil file and cultivar file, no unusual or abnormal values.

Reference to your concern on fertilizer input which is not showing any
response on tops weight, there are possibilities

1. which fertilizer you are going to simulate, if phosphatic or potash, then
model will not respond becuase current modules can ony simulate nitrogen.

2. May be in simulation options you have set the option of nitrogen "no" it
means a sort of potential run under nonlimiting conditions of nitrogen and
will not simulate values given in fertilizer information box.

Best wishes

Humaira Sultana
Research Felllow
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 4/11/06, Benjamin Fehling <[log in to unmask]>
wrote:
>
> Dear all,
>
> What is a good method to check wether my Ceres-Module is working
> generally. Do
> you know common faults i may have not checked my Barley X-file settings
>
> for? Output values always are negative or zero for all  growth parameters
> except Product unit weight and final leaf number. Especially LAI is not
> computed, although leaf number raises up to 11.
> I changed planting date from January to june thus absolute values slightly
>
> increase. Fertilizer did not show any effects on Tops weight. thanks for
> your
> help.
> regards
>
> Benjamin
>
> --
> Benjamin Fehling
> Botanisches Institut
> Abt. Vegetationsökologie
> Auf der Morgenstelle 3
> 72076 Tübingen
> Germany
> Tel. 07071/29-73234
>



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