Effects of Conservation Agriculture and Conventional Tillage on the Soil Physicochemical Properties and Household Income in Southern Ethiopia

Table 6

T-test mean comparison on the effects of CA and CT on the soil the exchangeable bases (meq/100 gm of soil) and PBS (meq/100 gm of soil) in the selected kebeles of Arba Minch Zuriya and Derashe districts.

Parameters	CA	CT	-value
	Mean (±SE)	Mean (±SE)
Na^+	1.05 ± 0.1	0.96 ± 0.05	0.47
K^+	0.94 ± 0.04^a	1.46 ± 0.23^b	0.03
Ca^2+	44.69 ± 3.52^a	34.95 ± 1.63^b	0.01
Mg^2+	15.97 ± 2.86	14.27 ± 0.32	0.56
Sum of cations	68.21 ± 1.66^a	60.67 ± 1.52^b	0.002
CEC	68.2 ± 1.66^a	60.67 ± 1.52^b	0.002
Percent base saturation (PBS)	113.4 ± 23.2	85.15 ± 1.8	0.24

Means with the different letters across row are significantly different () to land management.