Effect of Soil Management Practices and Slope on Soil Fertility of Cultivated Lands in Mawula Watershed, Loma District, Southern Ethiopia

Table 6

Effect of soil management practices and slope ranges on exchangeable cations in soils of Mawula watershed.

SMP	Exchangeable cations (cmol kg^−1)				CEC (cmol kg^−1)
	K	Ca	Mg	Na
NM	0.53^d	4.89^d	3.05^d	0.18^b	22.66^d
SB	0.87^c	7.18^c	4.58^c	0.19b	26.53^c
FYM	1.13^b	9.41^b	5.43^b	0.29^a	30.85^b
SBFYM	1.22^a	11.05^a	6.72^a	0.35^a	34.56^a
LSD (0.05)	0.070	0.359	0.168	0.056	0.925
SEM (±)	0.023	0.118	0.0555	0.0183	0.305
CV (%)	9.3	3.95	4.17	17.9	2.35
Slope range
US	0.89^b	7.65^b	4.65^b	0.23^b	27.81^b
LS	0.97^a	8.61^a	5.24^a	0.28^a	29.49^a
LSD (0.05)	0.049	0.254	0.119	0.039	0.6543
SEM (±)	0.164	0.0838	0.0392	0.0129	0.2157

Means within a column followed by the same letter are not significantly different from each other at  ≤ 0.05; SMP, soil management practices; NM, no management; SB, soil bund; FYM, farm yard manure; SBFYM, soil bund integrated with farm yard manure; CEC, cation exchange capacity; US, upper slope; LS, lower slope.