Assessment of soil fertility status of Vertisols under selected three land uses in Girar Jarso District of North Shoa Zone, Oromia National Regional State, Ethiopia

Environmental Systems Research

Table 9 Interaction effects of land uses by soil depths on some micronutrients of soils of the study area

Land use × soil depth	Fe	Mn	Cu	Zn
Land use × soil depth	(mg kg⁻¹)
CUL
0–20	11.29^c	15.04^a	1.44	0.66
20–40	6.30^e	10.12^c	0.91	0.47
GRL
0–20	14.45^b	12.17^b	2.65	0.78
20–40	5.54^e	5.91^e	1.48	0.54
NFL
0–20	16.25^a	10.54^c	2.37	0.72
20–40	9.16^d	8.57^d	1.96	0.51
LSD (0.05)	0.91	1.17	NS	NS
SEM (±)	0.29	0.37	0.22	0.07
CV (%)	4.83	6.22	20.78	8.83

Means within a column for the same factor followed by the same letters in superscripts are not significantly different from each other at P = 0.05
LSD least significant difference, NS not significant, SEM standard error of mean, CV coefficient of variation, EA exchangeable acidity, CUL cultivated land, GRL grazing land, NFL natural forest land