Soil Properties, Crop Yield, and Economic Return in Response to Lime Application on Acidic Nitisols of Southern Highlands of Ethiopia
Table 2
Mean values of selected soil chemical properties (pH, available P, OC, TN, EA, Ex H+, and Ex Al3+) as affected by different rates of lime application on Nitisols in southern Ethiopia.
Lime rate (t·ha−1)
pH
Available P (mg/kg)
OC (%)
TN (%)
Ca2+
EA (cmol/kg)
H+ (cmol/kg)
Al3+(cmol/kg)
2020
2021
2020
2021
2020
2021
2020
2021
2020
2020
2021
2020
2021
2020
2021
Control (0)
5.04d
4.97c
5.63a
4.68a
5ab
4.22a
0.48ab
0.49a
4.8 d
2.59a
4.15a
0.47a
1.79a
2.13a
2.36a
2.74
5.29cd
5.18c
6.94b
3.83a
5.07ab
4.29a
0.48ab
0.49a
8.15cd
0.88b
1.94b
0.26b
1.39ab
0.61b
0.55b
4.11
5.66bc
5.67b
6.95b
5.08a
5.12a
4.24a
0.49ab
0.5a
10.43bcd
0.33b
1.04bc
0.14c
0.80bc
0.19b
0.72ab
5.54
5.64bc
5.70b
7.05b
4.19a
5.01ab
4.17a
0.51a
0.65a
11.52bc
0.36b
0.49c
0.16c
0.49cd
0.20b
ND
6.85
6.11ab
5.83b
7.95ab
3.78a
4.95ab
4.15a
0.48ab
0.48a
14.34ab
0.71b
0.59bc
0.22bc
0.59cd
0.49b
ND
8.22
6.54a
6.37a
7.92ab
4.9a
4.8b
3.86b
0.46b
0.46a
17.91a
0.45b
0.16c
0.14c
0.16d
0.31b
ND
Significance level
NS
NS
NS
NS
NS
LSD (0.05)
0.55
0.44
1.89
1.34
0.3
0.24
0.04
0.22
6.18
0.66
1.41
0.10
0.61
0.57
CV (%)
5.34
4.48
13.41
18.6
3.33
3.27
4.69
25.19
30.33
41.09
38.14
23.89
30.42
38.12
27.96
Note. Significant at ≤ 0.05, ≤ 0.01, and ≤ 0.001. Within a column, means followed by different letters are significantly different at < 0.05. LSD: least significant difference; CV: coefficient of variation; NS: not significant; ND: not detected.
