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

Table 7

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

SMP	cmol·kg^−1
	K		Ca		Mg		Na		CEC
	US	LS	US	LS	US	LS	US	LS	US	LS
NM	0.51^d	0.55^d	4.51^g	5.21^f	2.9^f	3.17^f	0.15^d	0.19^dc	21.8^h	23.5^g
SB	0.82^c	0.91^c	6.81^e	7.54^d	4.23^e	4.93^d	0.16^d	0.22^dc	25.8^f	27.2^e
FYM	1.07^b	1.18^a	8.85^c	9.97^b	5.1^d	5.76^c	0.22^bc	0.33^ba	29.9^d	31.78^c
SBFYM	1.18^a	1.25^a	10.4^b	11.66^a	6.3^b	7.1^a	0.33^ba	0.34^a	33.7^b	35.7^a
LSD	0.099		0.508		0.238		0.078		1.31
SEM (±)	0.62		2.12		3.12		0.23		21.5

Means for specific soil parameter followed by the same letter(s) are not significantly different from each other at  ≤ 0.05; SMP, soil management practices; NM, no management; SB, soil bund; FYM, farm yard manure management; SBFYM, soil bund integrated with farm yard manure; SEM, standard error of mean; US, upper slope; LS, lower slope.