Table 2.
Mean ± S.E of soil pH, EC, SOC, total N, and available P on different cultivated land management practices and slope gradients in the Korekore Watershed.
| Factors | Attribute of factors | pH | EC (ds/m) | SOC (%) | Total N (%) | Available P (ppm) |
|---|---|---|---|---|---|---|
| Land management practice | M-SWC | 6.8 ± 0.12 | 0.06 ± 0.007 | 2.02 ± 0.26a | 0.12 ± 0.01a | 4.69 ± 0.32a |
| W-SWC | 6.6 ± 0.06 | 0.07 ± 0.008 | 1.46 ± 0.24b | 0.08 ± 0.01b | 3.11 ± 0.31b | |
| p value | 0.45 | 0.62 | 0.04 | < 0.0001 | 0.003 | |
|
| ||||||
| Slope gradient | 0%–15% | 6.7 ± 0.01a | 0.07 ± 0.006 | 1.59 ± 0.19b | 0.10 ± 0.03 | 4.24 ± 0.53 |
| 15%–30% | 6.7 ± 0.05a | 0.06 ± 0.01 | 1.13 ± 0.14b | 0.09 ± 0.03 | 3.19 ± 0.37 | |
| > 30% | 6.6 ± 0.03b | 0.07 ± 0.01 | 2.51 ± 0.32a | 0.10 ± 0.02 | 4.28 ± 0.52 | |
| p value | 0.008 | 0.76 | 0.001 | 0.06 | 0.09 | |
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| LMP ∗ SG | 0.26ns | 0.24ns | 0.79ns | 0.20ns | 0.74ns | |
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| CV (%) | 1.2 | 35.7 | 29.2 | 9.94 | 22.6 | |
Note: Means ± S.E. with different letters within a column are significantly different (p < 0.05) (Fisher's LSD). LMP ∗ SG interaction effect.
Abbreviations: CV = coefficient of variation; LMP = land management practice; M-SWC = managed with soil and water conservation; ns = nonsignificant; S.E. = standard error; SG = slope gradient; W-SWC = without SWC.