Assessment of the nitrogen fertilizer split-application on maize grain yield and profitability on Nitisols of South-Kivu, Eastern D.R. Congo

Table 9 Estimation of the economic profitability of urea nitrogen split-application

Variety	Split	Urea quantity (kg ha⁻¹)	Urea cost (USD)	Application cost (USD)	Total cost (USD)	Yield (t ha⁻¹)	Yield increase (t ha⁻¹)	Yield value increase (USD)	BCR
SAM4VITA	F0	0	–	–	–	5.0	–	–	–
	F1	100	150	146.25	296.25	5.8	0.8	352	1.19
	F2	100	150	292.50	442.50	5.5	0.5	220	0.50
	F3	100	150	438.75	588.75	5.2	0.2	88	0.15
PVA SYN18 (F2)	F0	0	–	–	–	4.5	–	–	–
	F1	100	150	146.25	296.25	5.7	1.2	528	1.78
	F2	100	150	292.50	442.50	5.1	0.6	264	0.60
	F3	100	150	438.75	588.75	4.9	0.4	176	0.30
ZM627	F0	0	–	–	–	5.0	–	–	–
	F1	100	150	146.25	296.25	6.3	1.3	572	1.93
	F2	100	150	292.50	442.50	5.8	0.8	352	0.80
	F3	100	150	438.75	588.75	5.3	0.3	132	0.22
Split	F0	0	–	–	–	4.8	–	–	–
	F1	100	150	146.25	296.25	5.9	1.1	484	1.63
	F2	100	150	292.50	442.50	5.4	0.6	264	0.60
	F3	100	150	438.75	588.75	5.1	0.3	132	0.22

USD US dollar; BCR benefit-to-cost ratio. At the time of the research, 1 USD was equivalent to 1800 Congolese francs and 1 kg of unprocessed maize cost was 800 Congolese francs

ISSN: 2662-4044