Soil Test Based Fertilizer Calibration for Common Bean (Phaseolus vulgaris L.) Varieties of the Southern Ethiopia

Table 8

Marginal analysis of common bean variety as influenced by blended fertilizer rates.

Treatments kg	Varieties	Unadjusted yield (kg ha^−1)	Adjusted yield (kg ha^−1)	GB (ETB ha^−1)	TVC (ETB ha^−1)	NB (ETB ha^−1)	MRR (%)
0	Nassir	1852	1666.8	50004	0	50004	0
50	Nassir	2045	1840.5	55215	1200	54015	4.01
100	Nassir	2595	2335.5	70065	2400	67665	13.65
150	Nassir	2422	2179.8	65394	3600	61794	−5.871
200	Nassir	2403	2162.7	64881	4800	60081	−1.713
250	Nassir	2375	2137.5	64125	6000	58125	−1.96

GB: gross benefit, TVC: total variable cost, NB: net benefit, and MRR: marginal rate of return.