141
Table 7 Mean chemical composition of rice straw in different villages from 2012 to 2014
Nutrients Practices
Mkula village
Dihombo village
Dakawa agricultural research institute
2012
LR
2013
SR
2014
LR
2012
LR
2013
SR
2013
LR
2014
SR
2014
LR
2012
LR
2013
LR
2014
LR
N %
FP
0.84
0.59
0.63
0.73
0.51
0.51
0.59
0.69
0.81
0.54
0.60
YSS
0.78
0.57
0.62
0.71
0.48
0.49
0.56
0.69
0.75
0.63
0.56
P-value
0.242
0.34
0.885
0.867
0.108
0.303
0.154
0.97
0.47
0.008
0.469
P %
FP
0.23
0.14
0.13
0.17
0.14
0.12
0.17
0.16
0.17
0.11
0.09
YSS
0.20
0.12
0.12
0.15
0.15
0.12
0.14
0.15
0.14
0.12
0.08
P-value
0.085
0.078
0.113
0.226
0.436
0.924
0.005
0.317
0.020
0.702
0.536
Ca %
FP
0.23
0.3
0.24
0.28
0.26
0.23
0.24
0.29
0.28
0.26
0.23
YSS
0.25
0.20
0.24
0.28
0.25
0.25
0.24
0.21
0.33
0.32
0.28
Cu mg/kg FP
3.47
a
2.85
3.12
a
3.20
2.28
11.79
b
2.21
1.7
2.04
9.61
5.36
a
YSS
2.32
b
3.17
2.55
b
2.77
2.49
12.42
a
3.02
2.11
2.49
10.17
3.49
b
P-value
0.072
0.344
0.083
0.611
0.694
0.011
0.043
0.084
0.153
0.678
0.006
Zn mg/kg FP
51.5
59.3
a
56.7
51.5
55.7
a
51.2
a
45.8
a
36.2
34.5
34.7
27
YSS
53.54
49.7
b
48.4
40.6
41.5
b
41.3
b
36.4
b
43.4
34.2
30.9
29
P-value
0.63
0.041
0.143
0.102
0.029
0.008
0.039
0.256
0.926
0.275
0.539
FP
farmers’ practice, YSS
Yara/SUA/Syngenta improved practice, SR
short rain, LR
long rain. Values in the same column and nutrient followed by different
superscripts are significantly different at P < 0.05
Productivity and Chemical Composition of Maize Stover and Rice Straw Under…