International Journal of Agronomy

Research Article

Effect of Mineral Nitrogen, Phosphorus, and Potassium Fertilizers on the Productivity of Faba Bean (Vicia faba L.) in Acidic Soils of Wolaita Zone, Southern Ethiopia

Table 10

Partial budget analysis of faba bean influenced by mineral nitrogen, phosphorus, and potassium fertilizers.


NPK treatments	UGY	AGY	USY	ASY	GFB	TVC (USD ha⁻¹)				NB (USD ha⁻¹)
NPK treatments	(t ha⁻¹)	(t ha⁻¹)	(t ha⁻¹)	(t ha⁻¹)	(USD ha⁻¹)	FC	TC	LC	TVC	NB (USD ha⁻¹)

Control	1.08	0.97	1.29	1.16	917.69	0	0	0	0	917.69
23 kg N ha⁻¹	2.77	2.49	2.98	2.68	2,350.26	13.95	0.17	0.47	14.59	2,335.66
46 kg N ha⁻¹	1.63	1.47	2.23	2.01	1,387.99	27.91	0.35	0.93	29.19	1,358.80
46 kg P₂O₅ ha⁻¹	2.43	2.19	2.65	2.39	2,062.15	34.88	0.35	0.93	36.16	2,025.99
92 kg P₂O₅ ha⁻¹	2.34	2.11	2.74	2.47	1,987.74	69.77	0.70	1.86	72.33	1,915.42
30 kg K₂O ha⁻¹	2.45	2.21	2.92	2.63	2,081.72	17.44	0.17	0.47	18.08	2,063.64
60 kg K₂O ha⁻¹	2.5	2.25	3.13	2.82	2,125.78	34.88	0.35	0.93	36.16	2,089.62
23 kg N × 46 kg P₂O₅ ha⁻¹	3.47	3.12	4.26	3.83	2,949.70	48.84	0.52	1.40	50.76	2,898.94
23 kg N × 92 kg P₂O₅ ha⁻¹	3.47	3.12	4.33	3.90	2,950.43	83.72	0.87	2.33	86.92	2,863.51
46 kg N × 46 kg P₂O₅ ha⁻¹	3.11	2.80	3.89	3.50	2,644.43	62.79	0.70	1.86	65.35	2,579.08
46 kg N × 92 kg P₂O₅ ha⁻¹	3.29	2.96	4.1	3.69	2,797.33	97.67	1.05	2.79	101.5	2,695.81
23 kg N × 30 kg K₂O ha⁻¹	3.52	3.17	4.39	3.95	2,992.92	31.40	0.35	0.93	32.67	2,960.24
23 kg N × 60 kg K₂O ha⁻¹	3.67	3.30	4.75	4.28	3,122.27	48.84	0.52	1.40	50.76	3,071.51
46 kg N × 30 kg K₂O ha⁻¹	2.67	2.40	3.33	3.00	2,270.20	45.35	0.52	1.40	47.27	2,222.93
46 kg N × 60 kg K₂O ha⁻¹¹	2.75	2.48	3.43	3.09	2,338.22	62.79	0.70	1.86	65.35	2,272.87
46 kg P₂O₅ × 30 kg K₂O ha⁻¹	3.37	3.03	4.11	3.70	2,864.41	45.35	0.52	1.40	47.27	2,817.14
46 kg P₂O₅ 60 kg × 60 kg K₂O ha⁻¹	3.37	3.03	4.21	3.79	2,865.45	69.77	0.70	1.86	72.33	2,793.13
92 kg P₂O₅ × 30 kg K₂O ha⁻¹	2.71	2.44	3.35	3.02	2,303.90	87.21	0.87	2.33	90.41	2,213.49
92 kg P₂O₅ 60 × 62 kg K₂O ha⁻¹	3.21	2.89	3.35	3.02	2,722.50	104.7	1.05	2.79	108.5	2,614.01
23 kg N × 46 kg P₂O₅ × 30 kg K₂O ha⁻¹	4.54	4.09	5.75	5.18	3,861.10	66.28	0.70	1.86	68.84	3,792.27
23 kg N × 46 kg P₂O₅ × 60 kg K₂O ha⁻¹	4.62	4.16	6.33	5.70	3,934.15	76.74	0.87	2.33	79.94	3,854.21
23 kg N × 92 kg P₂O30 kg × 30 kg K₂O ha⁻¹	4.67	4.20	5.96	5.36	3,972.14	101.2	1.05	2.79	105.0	3,867.14
23 kg N × 92 kg P₂O₅ × 60 kg K₂O ha⁻¹	4.97	4.47	6.83	6.15	4,232.41	118.6	1.22	3.26	123.1	4,109.33
46 kg N × 46 kg P₂O₅ × 30 kg K₂O ha⁻¹	4.34	3.91	5.8	5.22	3,694.19	66.28	0.87	2.33	69.48	3,624.71
46 kg N × 46 kg P₂O₅ × 60 kg K₂O ha⁻¹	4.51	4.06	5.77	5.19	3,836.20	97.67	1.05	2.79	101.5	3,734.69
46 kg N × 92 kg P₂O₅ × 30 kg K₂O ha⁻¹	4.41	3.97	5.84	5.26	3,753.21	115.1	1.22	3.26	119.6	3,633.62
46 kg N × 92 kg P₂O₅ × 60 kg K₂O ha⁻¹	4.21	3.79	6.07	5.46	3,588.17	132.6	1.40	3.72	137.7	3,450.50

Note: UGY, unadjusted grain yield; AGY, adjusted grain yield; USY, unadjusted straw yield; ASY, adjusted straw yield; GFB, gross field benefit; TVC, total variable cost; FC, fertilizer cost; TC, transportation cost; LC, labor cost to fertilizer transportation and application; NB, net benefit; and USD ha⁻¹ = United States dollar per hectare.