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Subject:
Re: the definition of NO3(L)
From:
Gerrit Hoogenboom <[log in to unmask]>
Reply To:
DSSAT - Crop Models and Applications <[log in to unmask]>
Date:
Thu, 24 Aug 2006 22:03:43 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (57 lines) 
Jin,

The units are better defined in DATA.CDE, which you can access from
the DSSAT shell:

NH1D   NH4  layer 1    NH4, 0-5 cm (ug [N]/g
[soil])                            .
NH2D   NH4  layer 2    NH4, 5-15 cm (ug [N]/g
[soil])                           .
NH3D   NH4  layer 3    NH4, 15-30 cm (ug [N]/g
[soil])                          .
NH4D   NH4  layer 4    NH4, 30-45 cm (ug [N]/g
[soil])                          .
NH5D   NH4  layer 5    NH4, 45-60 cm (ug [N]/g
[soil])                          .
NH6D   NH4  layer 6    NH4, 60-90 cm (ug [N]/g
[soil])                          .
NH7D   NH4  layer 7    NH4, 90-120 cm (ug [N]/g
[soil])                         .
NH8D   NH4  layer 8    NH4, 120-150 cm (ug [N]/g
[soil])                        .
NH9D   NH4  layer 9    NH4, 150-180 cm (ug [N]/g
[soil])                        .
NHTD   Total NH4 kg/ha Total soil NH4 (kg
[N]/ha)                               .
NI10   NO3 layer 10    NO3, 180-210 cm (ug [N]/g
[soil])                        .
NI1D   NO3 layer 1     NO3, 0-5 cm (ug [N]/g
[soil])                            .
NI2D   NO3 layer 2     NO3, 5-15 cm (ug [N]/g
[soil])                           .
NI3D   NO3 layer 3     NO3, 15-30 cm (ug [N]/g
[soil])                          .
NI4D   NO3 layer 4     NO3, 30-45 cm (ug [N]/g
[soil])                          .
NI5D   NO3 layer 5     NO3, 45-60 cm (ug [N]/g
[soil])                          .
NI6D   NO3 layer 6     NO3, 60-90 cm (ug [N]/g
[soil])                          .
NI7D   NO3 layer 7     NO3, 90-120 cm (ug [N]/g
[soil])                         .
NI8D   NO3 layer 8     NO3, 120-150 cm(ug [N]/g
[soil])                         .
NI9D   NO3 layer 9     NO3, 150-180 cm (ug [N]/g
[soil])                        .

At 09:44 PM 08/24/2006, you wrote:
>  I am confuse the definition of NO3(L) which is Soil nitrate (ppm) in Layer L
>
>  Will you tell me if it is refer to per unit weight of soil or per
> unit weight of water?
>
>NO3(L) is solute concentration or soil concentration?
>
>
>  JIn Wu

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