Agriculture Reference
In-Depth Information
Table 28.5.
Crop files modified in the Century model for the Indo-Gangetic Plains (IGP) and the black soil
region (BSR), India. (From Bhattacharyya
et al
., 2010.)
Rice
Abbreviation
IGPRM
a
IGPRM
b
RICL
c
Description
Rice monsoon
Rice monsoon
Lowland rice
Sowing time
June-July
June-July
-
Duration (months)
5
5
5
Irrigation
Rain fed
Rain fed
Rain fed
PPDF (2)
d
45
42
45
Wheat
Abbreviation
IGPWE
a
IGPWEM
e
WW3S
c
BSRW
f
Description
Irrigated wheat
eastern IGP
Irrigated wheat
eastern IGP
(Mohanpur)
Soft winter wheat
high harvest
index
Irrigated wheat
black soil
region
Sowing time
3rd week December
November
November
Duration (months)
4-5
6
6
5
Irrigation
4-5
6
-
5
PRDX (1)
g
300
325
450
475
PPDF (1)
h
30
18
18
18
PPDF (2)
d
35
35
33
40
Sorghum
Abbreviation
BSRS
f
SORG
c
Description
Sorghum black
soil region
Grain sorghum
Sowing time
June
June-July
Duration (months)
4
Irrigation
-
PRDX (1)
g
375
680
PPDF (1)
h
30
30
PPDF (2)
d
45
45
a
Please see Table
3
in Bhattacharyya
et al
., 2007c;
b
modified for rice in this study;
c
original crop file Century;
d
PPDF (2):
maximum temperature for production for parameterization of Poisson density function curve to simulate temperature effect
on growth;
e
modified for this study for IGP (Mohanpur); although wheat is grown during late December in eastern part of
the IGP, the present experiment (our study area of Mohanpur) reports wheat sowing during November;
f
fmodified for the
study of the BSR (Akola);
g
PRDX (1): potential aboveground monthly production for crops (g C m
-2
);
h
PPDF (1): optimum
temperature for production for parameterization of a Poisson density function curve to simulate temperature effect on growth.
(vertisols) indicate an increase in the active
pool of organic carbon (Chivhane and Bhat-
tacharyya, 2010). Although such pools may
not influence crop yield immediately, in the
course of time crop yield and soil health
will be bettered by such practice. Among
organic manures, farmyard manure and
wheat straw was, by far, the best combin-
ation for the maximum influence on organic
carbon sequestration. The other options are
cow dung slurry and urban compost and
farmyard manure. Earlier, Guo
et al
. (2006)
reported RothC to simulate changes in the
SOC accurately across a wide area of nor-
thern China. They indicated that manures
applied at an appropriate rate were more
effective in increasing and maintaining SOC
than fertilizers, which, in turn, were more
effective in increasing crop yield.
InfoCropmodel studies
The validated InfoCrop cotton model was
tested for its sensitivity to atmospheric CO
2
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