Effect of Blended Nitrogen, Phosphorus, Sulfur, Boron, and Potassium Fertilizer Rates on Growth and Yield of Maize (Zea mays L.) at Sodo Zuriya District, Southern Ethiopia

Table 8

Effect of blended NPSB and K fertilizer rates on profitability of maize production at Shela Borkoshe during 2019 to 2020 cropping seasons.

NPSB rates (kg/ha)	K rates (kg/ha)	Total revenue	Net profit	MRR (%)
0	0	164	40	—
	30	224	37	−7.89
	60	248	57	666.67
	90	266	73	533.33
50	0	321	171	—
	30	587	380	366.67
	60	668	458	260.00
	90	717	504	153.33
100	0	810	659	—
	30	924	700	55.41
	60	1251	1025	1083.33
	90	1303	1074	1633.33
150	0	1332	1182	—
	30	1372	1132	−54.95
	60	1734	1491	1196.67
	90	1765	1519	933.33

kg/ha: kilograms/hectare and MRR: marginal rate of return.