Table 11 Mean values of selected chemical characteristics of Nitisols (0–20 cm) as affected by slope
Soil properties | Upper slope (15–30%) | Lower slope (2–5%) | T value | Sign. |
|---|---|---|---|---|
pH–H2O | 5.85 | 5.67 | 0.835 | 0.465 |
OC (%) | 1.50 | 2.52 | −12.000 | 0.000 |
Tot. N (%) | 0.13 | 0.22 | −4.869 | 0.012 |
C/N | 8 | 15 | −25.000 | 0.000 |
AP (mg kg−1) | 10.0 | 17.0 | −5.085 | 0.015 |
CEC and basic cations (cmol(+) kg−1): | ||||
 CEC | 43.0 | 42.0 | 0.324 | 0.767 |
 Ca | 16.0 | 14.0 | 1.842 | 0.163 |
 Mg | 9.0 | 8.0 | 5.196 | 0.14 |
 Na | 0.04 | 0.06 | −0.16 | 0.923 |
 K | 1.2 | 1.4 | −1.092 | 0.355 |
 PBS (%) | 62.0 | 58.0 | 1.960 | 0.145 |
Micronutrients (mg kg−1): | ||||
 Fe | 61.0 | 68.0 | −0.733 | 0.516 |
 Mn | 46.0 | 55.0 | −1.741 | 0.180 |
 Zn | 9.0 | 9.0 | 1.000 | 0.391 |
 Cu | 3.0 | 2.0 | 0.775 | 0.95 |