Response of potato (Solanum tuberosum L.) to nitrogen and phosphorus fertilizers at Sekota and Lasta districts of Eastern Amhara, Ethiopia

Environmental Systems Research

Table 9 partial budget analysis at Woleh

N	P₂O₅	Unadjusted yield (t ha⁻¹)	Adjusted (t ha⁻¹)	Gross benefit (Ethiopian Birr)	Costs that varies (Ethiopian Birr)	Net benefit (Ethiopian Birr)	MRR%
0	0	9.86	8.874	97,614	0	97,614
0	23	11	9.9	108,900	580	108,320	1845.86
46	0	11.66	10.49	115,434	1008	114,426	1426.64
0	46	10.77	9.69	106,623	1160	105,463	D
46	23	13.49	12.14	133,551	1588	131,963	3023.62
0	69	11.76	10.58	116,424	1740	114,684	D
92	0	12.04	10.83	119,196	2016	117,180	D
46	46	14.28	12.85	141,372	2168	139,204	1248.45
92	23	15.23	13.70	150,777	2596	148,181	2097.43
46	69	13.61	12.24	134,739	2748	131,991	D
138	0	15.99	14.39	158,301	3024	155,277	1657.94
92	46	14.58	13.12	144,342	3176	141,166	D
138	23	16.99	15.29	168,201	3604	164,597	1606.90
92	69	14.15	12.73	140,085	3756	136,329	D
138	46	17.12	15.40	169,488	4184	165,304	121.90
138	69	16.76	15.08	165,924	4764	161,160	D