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Date: | Wed, 30 Jan 2002 22:30:54 +0700 |
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Dear Biran
Thanks for kind cooperation
I read the N balance.out file. Here I have two question. First, which term
is nitrate leaching, and second why N leached (NLCC:1.1 Kg/ha) is very low
in comparison to measured value( 18.2 kg/ha).I need help to justify it.Can I
send to you my N balance .out file ? Please tell me how can I send this
file through DSSATserver.I tried many times but unable to send.I if you need
other file , please write me.
Bipin
----- Original Message -----
From: Brian Baer <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, January 30, 2002 9:11 PM
Subject: Re: About nitrate leaching
> Bipin Kumar Pathak,
>
> One thing you might want to look at is the nbal.out file. This give a
> seasonal balance of nitrogen and it might tell you where your N is going
to.
>
> Brian
>
> At 01:36 PM 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]
>
>
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