Comparison of Teff (Eragrostis teff (Zucc.) Trotter) Varieties in Response to Blended NPSZnB Fertilizer On-Farm and on Research Station

Table 12

Summary of partial budget analysis of teff production due to the effects of varieties and blended NPSZnB fertilizer rates application on-station.

Variety	NPSZnB rate (kg ha^−1)	Adjusted grain yield (kg ha^−1)	Adjusted straw yield (kg ha^−1)	Total revenue (ETB ha^−1)	Total variable cost (ETB ha^−1)	Net benefit (ETB ha^−1)	Marginal rate of return (%)
Dagim	0
Dagim	50	1,091.43	4,334.67	61,506.97	2,000	59,506.97	2,625.2
Dagim	100	1,241.10	4,934.07	69,949.51	3,250	66,699.51	3,041.7
Dagim	150	2,042.73	5,292.63	110,604.71	4,400	106,204.71	4,621.9
Dagim	200	2,252.43	5,838.57	121,963.21	5,750	116,213.21	2,544.7
Kora	0	634.77	3,883.23	37,951.67	500	37,451.67	D
Kora	50	1,392.57	4,213.53	76,370.15	2,000	74,370.15	0
Kora	100	1,692.27	4,810.77	92,310.73	3,250	89,060.73	0
Kora	150	2,431.17	6,271.83	131,593.43	4,400	127,193.43	0
Kora	200	2,594.70	6,451.83	140,057.93	5,750	134,307.93	0
Nigus	0	273.870	3,451.23	19,215.47	500	18,715.47	D
Nigus	50	455.67	4,049.1	29,262.06	2,000	27,262.06	D
Nigus	100	956.7	4,173.03	54,511.848	3,250	51,261.848	D
Nigus	150	1,538.37	4,621.77	84,313.332	4,400	79,913.332	D
Nigus	200	1,839.87	4,965.03	99,937.548	5,750	94,187.548	D

Where D = dominated treatments; ETB = Ethiopian Birr; Market price of teff = 50 ETB kg⁻¹; Market price of straw = 1.60 ETB kg⁻¹; Cost of blended NPSZnB fertilizer = 1,000 birr per 50 kg; Labor cost for fertilizer application = 1 persons for 50 kg, each at 100 ETB day⁻¹.