Hi
I am very interested to know about your N leaching results. If you resolve
the problem, and got reliable answers , please inform me.
Yours
Neda Farahbakhshazad
******************************************************
Dr Neda Farahbakhshazad
(Wallenberg Fellow in Environment and Sustainability)
Massachusetts Institute of Technology
Ralph Parsons Laboratory for Water Resources and Hydrodynamics
15 Vassar Street, 48-114
Cambridge, MA 02139, USA
Phone: ++1 617 253 5450, Fax:++1 617 253 7475
Email: [log in to unmask]
  1/30/2002 +0700, you wrote:
>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
>Email:[log in to unmask]