Effects of Lime, Vermicompost, and Chemical P Fertilizer on Selected Properties of Acid Soils of Ebantu District, Western Highlands of Ethiopia

Table 7

The effects of treatments on extractable micronutrients (Fe, Mn, Zn, and Cu) of the soil of the study area.

Treatment	Rate	Fe	Mn	Zn	Cu
		mg·kg^−1
Control	0	40^a	36^a	3.06^a	3.65^a
Lime (tons·ha^−1)	2	24.1^c	31^d	2.96^bc	3.43^b
	4	16.6^d	25^h	2.41^e	3.15^d
	6	14.3^e	17^k	2.23^f	2.86^h
Chemical P (kg·ha^−1)	20	39.7^a	36^a	3.09^a	3.66^a
	40	40.5^a	36^a	3.08^a	3.65^a
	60	40^a	36^a	3.03^ab	3.71^a
VC (tons·ha^−1)	2.5	30.7^b	35^b	2.99^b	3.32^c
	5	29.8^b	33^c	2.90^c	3.16^d
	7.5	29.8^b	26^g	2.78^d	2.98^ef
Chemical P (kg·ha^−1) + lime (4 tons·ha^−1)	20	16.6^d	24^h	2.43^e	3.14^d
	40	16.6^d	25^h	2.42^e	3.16^d
	60	16.6^d	25^h	2.44^e	3.16^d
VC (tons·ha^−1) + lime (4 tons·ha^−1)	2.5	15^de	22^i	2.24^f	2.96^ef
	5	10.8^f	16^l	2.13^g	2.88^gh
	7.5	10.3^f	15^m	2.00^h	2.79^i
Chemical P (kg·ha^−1) + VC (5 tons·ha^−1)	20	29.8^b	33^c	2.90^c	3.16^d
	40	29.6^b	33^c	2.91^c	3.15^d
	60	31.2^b	30^e	2.99^b	3.15^d
Chemical P (20 kg·ha^−1) + lime (4 tons·ha^−1) + VC (5 tons·ha^−1)	—	10.8^f	16^l	2.14^g	2.93^fg
Chemical P (40 kg·ha^−1) + lime (4 tons·ha^−1) + VC (5 tons·ha^−1)	—	10.8^f	16^l	2.15^g	2.88^gh
Chemical P (60 kg·ha^−1) + lime (2 tons·ha^−1) + VC (7.5 tons·ha^−1)	—	24.11^c	20^j	2.99^b	3.00^e
Chemical P (20 kg·ha^−1) + lime (4 tons·ha^−1) + VC (2.5 tons·ha^−1)	—	14.9^de	22^i	2.25^f	2.95^ef
Chemical P (40 kg·ha^−1) + lime (2 tons·ha^−1) + VC (5 tons·ha^−1)	—	15.4^de	27^f	2.47^e	3.14^d
F–test	—
CV (%)	—	3.14	1.03	1.23	0.92

Means followed by the same letter within a column are not significantly different at ; significant at using Duncan’s multiple range test; chemical P, chemical phosphorus; VC, vermicompost; CV, coefficient of variation.