Table 3.

Mean ± S.E of soil CEC and Exch. K and Na on different cultivated land management practices and slope gradients in the Korekore Watershed.

Factors	Attribute of factors	CEC (cmolc/kg)	Exch. K+ (cmolc/kg)	Exch. Na+ (cmolc/kg)
Land management practice	M-SWC	22.2 ± 0.06	0.75 ± 0.08a	0.65 ± 0.04a
	W-SWC	17.3 ± 0.07	0.54 ± 0.04b	0.53 ± 0.05b
	p value	0.07	0.03	0.0002
Slope gradient	0%–15%	24.2 ± 0.07a	0.65 ± 0.10	0.58 ± 0.11
	15%–30%	18.2.06a	0.56 ± 0.05	0.60 ± 0.07
	> 30%	16.8 ± 0.07b	0.73 ± 0.09	0.58 ± 0.05
	p value	0.006	0.28	0.69
	LMP ∗ SG	0.13ns	0.41ns	0.26ns
	CV (%)	26.7	27.04	8.47

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.