Hello Hiroshi,
   In answer to your first question, I think what you're refering to is the
mineralization factor SLNF found in the soil data file.  If that's true,
then what you need to look for is DMOD in NTRANS because the value of SLNF
is transferred to DMOD in the subroutine IPIBS.
   Unfortunately, I can't answer your second question.
   Good luck with your simulation.
Sincerely,
Richard
 
 
At 04:40 PM 11/15/98 -1000, you wrote:
>Dear DSSATers:
>
>Again, I have some questions about the DSSAT. I would be very happy if some
>could kindly ask my questions.
>
>1) A user can change the N minalization factor to conduct a
>location-specific calibration of the potential mineralization constant
>(default = 8.3x10-5/day). But, I cannot find the N minalization factor in
>the NTRANS submodel. Which submodel is the  N minalization factor located
>in?
>
>2) For model inputs I specified the depth increment of 0-15, 15-30, 30-45
>and 45-80 cm. But, the depth increment for outputs is fixed to 0-5, 5-15,
>15-30, 30-45, 45-60, 60-90 cm and so on. How is the relationship of the
>depth increments between model inputs and outputs? Is the user-specified
>depth increment actually used in simulation?
>  In sensitivity analysis, a user can change a depth increment for model
>inputs, but not outputs. Right?
>
>Thanks,
>
>Hiroshi Hasegawa
>Agronomist
>Tohoku National Agricultural Experiment Station
>Division of Upland Farming
>  960-2156
>  Fukushima-shi, Arai, Aza harajuku-minami 50
>  JAPAN
>  Phone; 81-24-593-5151
>  FAX  ; 81-24-593-2155
>  Email; [log in to unmask]
>