Response of Potato (Solanum tuberosum L.) to NPS Fertilizer Rates and Inter-Row Spacing in Kechi District, South Western Ethiopia

Table 6

Partial budget analysis data for NPS fertilizer rate.

NPS rate (kg/ha)	AMTY (t/ha)	AMTY (t/ha)	GFB (ETB/ha)	TVC (ETB/ha)	NB (ETB/ha)	MRR
0	26.442	23.7978	118989	0	118989
50	30.025	27.0225	135112.5	1460	133652.5	1004.35
100	35.908	33.2172	166086	2420	163666	3126.41
150	45.303	41.6727	208363.5	3380	204983.5	4303.91
200	48.056	43.2504	216252	4340	211912	721.72
250	46.929	42.2361	211180.5	5300	205880.5

Note. AMTY = average marketable tuber yield; ATY = 10% adjusted tuber yield; GFB = gross field benefit; TVC = total variable cost; MRR = marginal rate of return; NB  =  net benefit,