Soil Properties, Crop Yield, and Economic Return in Response to Lime Application on Acidic Nitisols of Southern Highlands of Ethiopia
Table 3
Effects of lime application on soil chemical properties combined over 2 years on Nitisols in southern Ethiopia.
Treatment
pH (H2O)
Av. P (mg kg−1)
CEC
Ca2+(Cmol kg−1)
K+(Cmol kg−1)
OC (%)
TN (%)
C : N ratio
EA (Cmol kg−1)
H+(Cmol kg−1)
Al+3
Year
2020
5.71
7.74a
28.61
9.72a
0.41a
5.01a
0.49
10.38a
0.89a
0.23a
0.65
2021
5.62
4.41b
28.13
11.19b
0.49b
4.16b
0.51
8.36b
1.40a
0.87b
0.53
Significance level
NS
NS
NS
NS
NS
LSD (0.05)
0.37
0.69
3.89
9.6
0.11
0.05
0.12
0.96
0.99
0.55
0.2
Lime rate (t·ha−1)
Control (0)
5.01d
5.62ab
27.43
4.80b
0.41ab
4.67a
0.49
9.62
3.37a
1.13a
2.25a
2.74
5.23cd
5.39ab
28.65
8.15b
0.41ab
4.68a
0.49
9.67
1.41b
0.83ab
0.58b
4.11
5.66bc
7.16 a
29.6
10.43ab
0.47a
4.68a
0.5
9.45
0.68bc
0.47bc
0.21c
5.54
5.67bc
6.01ab
28.41
11.52ab
0.45ab
4.59ab
0.58
8.46
0.42bc
0.32c
0.10c
6.85
5.97ab
5.86ab
28.12
14.34ab
0.35ab
4.55ab
0.48
9.63
0.65c
0.41c
0.25c
8.22
6.46a
6.42b
28.02
17.91a
0.39b
4.33b
0.46
9.4
0.31c
0.15c
0.15c
Significance level
NS
NS
NS
LSD (0.05)
0.49
1.63
3.38
3
4.2
0.267
0.16
1.36
0.77
0.42
0.17
CV (%)
4.81
14.82
6.57
6
10.2
3.21
17.63
21.56
28.21
22.25
28.79
Note. Significant at ≤ 0.05, ≤ 0.01, and ≤ 0.001; NS: not significant. Within a column, means followed by different letters are significantly different at < 0.05. LSD: least significant difference; CV: coefficient of variation.
