Nutrient Release Pattern of ... Loam Soils
T able 3. Distribution of different forms of boron (mg kg -1 ) in soils of the incubation study (Location-1I)
Days after
B levels
Boron fractions (mg kg -1 )
incubation
(kg ha -1 )
A
B
C
D
E
Mean
F
0.0
0.22
0.21
0.14
0.12
24.34
5.01
25.03
0.5
0.26
0.23
0.18
0.16
29.10
5.99
29.93
1.0
0.33
0.26
0.23
0.18
35.90
7.38
36.90
0
1.5
0.50
0.49
0.44
0.36
41.29
8.62
43.08
2.0
0.59
0.55
0.56
0.43
52.12
10.8
54.25
Mean
0.38
0.35
0.31
0.25
36.55
7.57
37.84
0.0
0.18
0.17
0.10
0.08
24.30
4.97
24.83
0.5
0.32
0.29
0.24
0.22
29.16
6.05
30.23
7
1.0
0.38
0.31
0.28
0.23
35.95
7.43
37.15
1.5
0.53
0.52
0.47
0.39
41.32
8.65
43.23
2.0
0.62
0.58
0.59
0.46
52.15
10.8
54.40
Mean
0.41
0.37
0.34
0.28
36.58
7.59
37.97
0.0
0.15
0.14
0.07
0.05
24.27
4.94
24.68
0.5
0.58
0.55
0.50
0.48
29.42
6.31
31.53
15
1.0
0.64
0.57
0.54
0.49
36.21
7.69
38.45
1.5
0.79
0.78
0.73
0.65
41.58
8.91
44.53
2.0
0.88
0.84
0.85
0.72
52.41
11.1
55.70
Mean
0.61
0.58
0.54
0.48
36.78
7.80
38.98
0.0
0.12
0.11
0.04
0.02
24.24
4.12
24.53
0.5
0.70
0.67
0.62
0.60
29.54
5.48
32.13
21
1.0
0.76
0.69
0.66
0.61
36.33
6.64
39.05
1.5
0.91
0.90
0.85
0.77
41.70
7.68
45.13
2.0
1.00
0.96
0.97
0.84
52.53
9.56
56.30
Mean
0.70
0.67
0.63
0.57
36.87
6.70
39.43
0.0
0.10
0.09
0.02
0.02
24.22
4.10
24.43
0.5
0.68
0.65
0.60
0.58
29.52
5.46
32.03
30
1.0
0.74
0.67
0.64
0.59
36.31
6.62
38.95
1.5
0.89
0.88
0.83
0.75
41.68
7.66
45.03
2.0
0.98
0.94
0.95
0.82
52.51
9.54
56.20
Mean
0.68
0.65
0.61
0.55
36.85
6.68
39.33
Forms
A
B
C
D
E
Mean
F
Overall
0.1-1.0
0.09-0.96
0.02-0.97
0.02-0.84
24.22-52.53
4.1-9.56
24.43-56.30
range
Overall
0.56
0.52
0.49
0.43
36.73
7.27
38.71
mean
CV%
51.38
53.59
61.39
63.29
27.14
28.83
28.02
A. Non specifically adsorbed B, B . Specifically adsorbed B, C . Oxide bound B, D. Organically bound B, E. Residual B, F . Total B
513