Assessment of Selected Physicochemical Properties of Soils under Different Land Uses and Topographic Positions at Gola Wachu Subwatershed, Eastern Ethiopia

Table 3

Soil pH-H₂O, EC, OM, TN, C/N, and Av. P under different land uses in each topographic position.

Soil properties	Land use types	Topographic positions
		Lower	Middle	Upper	LSD(0.05)
pH	Cultivated land	6.14^a	6.10^b	5.89^c	0.036
	Grazing land	6.92^a	6.82^b	6.79^b
	Fallow land	6.64^a	6.49^b	6.09^c
EC (dS/m)	Cultivated land	0.049^a	0.03^b	0.02^c	0.015
	Grazing land	0.068^a	0.05^b	0.041^c
	Fallow land	0.064^a	0.042^b	0.035^c
OM (%)	Cultivated land	1.29^a	1.19^b	1.15^c	0.055
	Grazing land	1.98^a	1.93^b	1.85^c
	Fallow land	1.74^a	1.58^b	1.55^b
TN (%)	Cultivated land	0.15^a	0.14^a	0.12^b	0.114
	Grazing land	0.18^a	0.17^a	0.14^b
	Fallow land	0.16^a	0.14^a	0.13^b
C : N ratio	Cultivated land	5.64^a	5.45^a	5.30^a	NS
	Grazing land	7.58^a	6.68^a	6.54^a
	Fallow land	6.63^a	6.25^a	6.12^a
Av. P (mg/kg)	Cultivated land	3.37^a	2.77^b	2.04^b	0.088
	Grazing land	7.08^b	6.09^a	4.66^c
	Fallow land	4.25^b	3.87^a	3.93^a

LSD = least significant difference; NS = nonsignificant; means within a row and column followed by different letters in superscripts are significantly different at according to Fisher’s LSD.