Agriculture Reference
In-Depth Information
TABLE 11.1
Change in Soil Microbial Biomass and Available Supply of Micronutrients in Response to Changing Soil Temperature
Time of
Soil temp. (°C)
SMB (cfu g
-1
soil)
Micronutrients (mg kg
-1
)
Sampling
(0-15 cm depth)
IF
INM
DTPA-Fe
DTPA-Mn
DTPA-Cu
DTPA-Zn
BC
(× 10
4
)
FC
(× 10
3
)
BC
(× 10
4
)
FC
(× 10
3
)
IF
INM
IF
INM
IF
INM
IF
INM
IF
INM
Jan. 2012
Morning
18.2
17.2
108
69
168
81
10.1
14.2
8.2
11.4
1.20
1.80
0.82
1.04
Afternoon
22.4
21.4
81
52
142
72
8.1
13.2
7.2
10.9
1.10
1.76
0.81
1.06
Feb., 2012
Morning
18.9
17.8
91
61
148
72
9.6
13.8
8.0
11.2
1.18
1.76
0.79
1.02
Afternoon
24.2
23.1
72
48
131
61
8.0
13.2
6.9
10.8
1.10
1.70
0.80
1.02
Mar. 2012
Morning
20.2
19.3
78
51
129
52
9.2
13.3
7.6
11.0
1.20
1.82
0.80
1.04
Afternoon
31.2
29.4
60
39
116
42
7.6
12.8
6.2
10.2
1.18
1.76
0.79
1.06
Apr. 2012
Morning 24.4 22.3 54 18 111 48 9.0 13.0 7.0 10.8 1.12 1.80 0.82 1.00
Afternoon 37.6 34.3 31 10 76 28 6.9 12.5 5.8 9.6 1.18 1.79 0.80 1.04
SMB, IF, INM, BC and FC stand for soil microbial biomass, inorganic fertilizers, integrated nutrient management, bacterial count and fungal
count, respectively.
Source Srivastava (2013, unpublished data).
