Effect of Integrated Inorganic and Organic Fertilizers on Yield and Yield Components of Barley in Liben Jawi District

Table 4

Effects of the integrated use of organic and inorganic NP fertilizers on economic profitability of barley production on smallholder farmers’ fields in Chelia district.

Treatments	Items
	Grain yield (kg·ha^−1)	Adjusted grain yield (kg·ha^−1)	Gross field benefit (EB·ha^−1)	TCV (EB·ha^−1)	Net benefit (EB·ha^−1)	Value to cost ratio	MRR (%)
Farmyard manure (N equivalency)	1924	1732	20779	1000	19779	19.78
50 : 50% VC : FYM	2003	1803	21632	1350	20282	15.02	144
33 : 33 : 33 t·VC : CC : FYM ha^−1	2118	1906	22874	1583	21291	13.45	433
50 : 50% FYM : RNP	2275	2048	24570	1740	22830	13.12	980
Vermicompost (N equivalency)	2206	1985	23825	1750	22075^D	12.61
50 : 50% VC : CC	2240	2016	24192	1875	22317^D	11.90
Conventional compost (N equivalency)	2533	2280	27356	2000	25356	12.68	972
50 : 50% VC : RNP	2549	2294	27529	2115	25414	12.02	50
50 : 50% CC : RNP	2567	2310	27724	2240	25484	11.38	56
Recommended NP	2481	2233	26795	2480	24315^D	9.80

D = dominated; adjusted grain yield = the grain yield barley was adjusted downwards to 10% to reflect the difference between the experimental plot yield and the yield farmers; TVC = total variable cost; MRR = marginal rate of return; barley grain price = 12 EB·kg⁻¹; NP = 14 EB·kg⁻¹; DAP = 13.9 EB·kg⁻¹; urea price = 10.90 EB·kg⁻¹; vermicompost price = 250 EB·t⁻¹; farmyard manure price = 300 EB·t⁻¹; conventional compost = 350 EB·ha⁻¹; labour cost = 28 EB·day⁻¹; VC = vermicompost; CC = conventional compost; RNP = recommended NP (100/100 kg·urea/DAP·ha⁻¹); FYM = farmyard manure; 1US$ = 27.57 EB.