Effect of Fertilizer Levels ... India
Table 1: Effect of fertilizer levels, FYM and bioinoculants on some soil properties of soil
Physical properties
Chemical properties
Organic
Bulk density
WHC (%)
pH
EC
CEC
Treatment
carbon (%)
2009-10
2009-10 2010-11
2009-10 2010-11 2009-10 2010-11 2009-10 2010-11
2009-10 2010-11
2010-11
Fertility levels (kg N, P 2 O 5 , and K 2 O ha -1 )
control
1.40
1.40
45.23
45.61
7.30
7.29
0.166
0.167
0.39
0.40
20.20
20.27
NPK50%
1.39
1.39
47.73
48.92
7.29
7.28
0.170
0.168
0.42
0.43
20.82
21.16
NPK75%
1.38
1.38
48.64
49.80
7.27
7.28
0.170
0.172
0.43
0.45
21.57
21.71
NPK100%
1.38
1.38
50.05
50.74
7.27
7.26
0.173
0.175
0.46
0.48
21.86
21.95
SE m±
0.007
0.006 0.091
0.118
0.015
0.011
0.003
0.003
0.005 0.007 0.114
0.120
CD 5%
NS
NS
0.314
0.408
NS
NS
NS
NS
0.016 0.023 0.395
0.413
FYM levels (t ha -1 )
FYM0
1.41
1.42
45.22
46.00
7.30
7.29
0.168
0.168
0.35
0.36
20.08
20.11
FYM10
1.36
1.35
50.60
51.54
7.27
7.25
0.171
0.173
0.50
0.52
22.14
22.43
SE m±
0.007
0.005 0.101
0.109
0.011
0.013
0.001
0.003
0.005 0.007 0.124
0.129
CD 5%
0.022
0.016 0.328
0.356
NS
NS
NS
NS
0.018 0.022 0.404
0.419
Bioinoculants
No inoculation 1.39
1.39
47.62
48.43
7.30
7.28
0.168
0.167
0.42
0.43
20.98
21.12
PGPR
1.38
1.39
47.88
48.71
7.28
7.28
0.169
0.171
0.43
0.44
21.08
21.22
VAM
1.38
1.38
47.95
48.87
7.27
7.27
0.170
0.171
0.43
0.45
21.13
21.33
PGPR+VAM
1.38
1.38
48.19
49.06
7.27
7.27
0.172
0.172
0.44
0.45
21.25
21.41
SE m±
0.005
0.005 0.117
0.121
0.013
0.012
0.002
0.002
0.007 0.008 0.136
0.136
CD 5%
NS
NS
0.332
0.343
NS
NS
NS
NS
NS
NS
NS
NS
Initial value
1.41
45.7
7.3
0.168
0.38
18.7
FYM @ 10t ha -1 was might be due to increase in organic
both the years. The improvement in WHC in response to
carbon content in the soil. The results are corroborated
the addition of FYM causes better environment for root
with the findings of Prakash et al., (2002) and Dadhich
development, improved soil structure and water stable
et al., (2011).
aggregates, as well as moisture retention capacity by
It is discernable from the Table 1 that water holding
increasingthetotalnumberofstoragepores(Bhattacharyya
capacity of soil significantly increased in all the treatments
et al., 2004). The results are in accordance with the
from its initial value (45.7%) except in control. Addition
findings of Datt et al., (2013). Integrated treatment of
of fertilizer levels significantly increased water holding
100% NPK fertilizer levels and FYM gave numerically
capacity after harvesting of the wheat crop. The increased
more water holding values as compared to control and
water holding capacity with increasing levels of fertilizer
100% NPK fertilizers applied treatments. Furthermore,
application in soil was might be due to enhanced root
use of bioinoculants also increased significantly water
growth leading to accumulation of more root residues in
holding capacity of soil. Biofertilizer improve soil texture,
the soil which ultimately enhanced WHC in soil
structure, supply of nutrients, WHC and proliferate useful
microorganism which enhances the root biomass and
Application of FYM @10 t ha -1 significantly increased
ultimately organic carbon in soil (Sharma, 2011).
WHC from 45.22 to 50.60% and 46.0 to 51.54% during
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