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Mon, 16 Nov 1998 11:40:00 +0900 |
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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]
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