Dear sir /all

I am using DSSAT-RICE model.My main purpose is to find out the nitrate  nitrogen and total nitrogen leaching from the paddy field.But I could not see nitrate leaching in DSSAT model.Only nitrogen leaching (code:NLCC=1.1 kg/ha) which is also vary low valve when comparing with measured value (measured value=3.63 kg/ha for nitrate and 18.2 kg/ha for Total nitrogen). I measured the daily value from the filed by the use of soil-water sampler and analyze in laboratory by phenate method  for nitrate, nessler method for ammonia  and Kjeldhal method for TKN. I also checked this data with mass balance approach, but  value is almost same .So I have problem about the model application.Could you 
help me  what's the problem? and how can solve it? I   tried but can not enclosed the RIX file , simulated file on RIN, RIO. herewith. I look forward your kind cooperation

Yours Sincerely
Bipin Kumar Pathak
Mail Box No: 193
Asian Institute of Technology
P.O.Box: 4
Khlong Luang, Pathumthani 12120
Thailand
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