Explaining Soil Fertility Heterogeneity in Smallholder Farms of Southern Ethiopia

Table 5

Descriptive statistics of soil OC, TN, AvP, and SO₄²⁻-S for surface soil.

Districts	Descriptive statistics	OC	TN	C : N ratio	AvP	SO4^2−-S
		%	%	—	mg/kg	mg/kg
Damot Gale (N = 243)	Mean	1.89	0.12	17.2	18.3	10.2
	Std. dev	0.69	0.06	5.6	34.8	2.9
	Median	1.80	0.12	15.5	6.3	9.7
	Minimum	0.2	0.01	8.6	0.1	4.2
	Maximum	4.2	0.35	40.6	215.0	20.3
	CV (%)	37.0	50.0	33.0	190.0	28.0
Damot Sore (N = 216)	Mean	2.52	0.18	14.4	9.4	11.0
	Std. dev	0.68	0.06	2.4	25.2	3.9
	Median	2.5	0.18	14.0	3.1	10.2
	Minimum	1.0	0.04	10.1	0.1	3.7
	Maximum	4.4	0.35	30.9	238.1	28.2
	CV (%)	27.0	33.0	17.0	268.0	35.0
Sodo Zuria (N = 330)	Mean	1.9	0.14	14.2	5.6	11.3
	Std. dev	0.69	0.07	3.3	10.0	3.7
	Median	1.9	0.14	13.4	2.9	10.9
	Minimum	0.3	0.02	7.4	0.1	4.2
	Maximum	0.69	0.68	35.0	99.4	30.3
	CV (%)	36.0	50.0	23.0	179.0	33.0
Total (N = 789)	Mean	2.08	0.15	15.1	10.5	10.9
	Std. dev	0.74	0.07	4.1	24.8	3.6
	Median	2.0	0.15	14.0	3.4	10.4
	Minimum	0.2	0.01	7.4	0.1	3.7
	Maximum	6.9	0.68	40.6	238.1	30.3
	CV (%)	36.0	47.0	27.0	236	33.0
	Fvalue	60.4	42.6	42.9	19.0	6.4

Numbers in brackets refer to sample size; , significant at , respectively.