Economic nitrogen doses via fertigation for corn cultivation in a semiarid environment

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dc.creatorÊnio Gomes Flôr Souza
dc.creatorEllen Abreu da Cruz
dc.creatorRafaela Félix da França
dc.creatorManoel Galdino dos Santos
dc.creatorThieres George Freire da Silva
dc.creatorMauricio Luiz de Mello Vieira Leite
dc.creatorAurélio Paes Barros
dc.creatorFrancisco Bezerra
dc.date2021
dc.date.accessioned2026-07-07T03:54:35Z
dc.descriptionProducers in the northeastern semiarid region of Brazil have been cultivating irrigated corn. The commercialized product comprises mainly green ears and silage. However, the irrigation of crops for dry grain has been questioned regarding costs and price competitiveness in relation to the same non-irrigated product cultivated in other regions. In recent years, the use of drip tapes and fertigation has spread among corn producers in the region. The aim of this study was to determine the N dose, via fertigation, which provides the maximum economic production of corn for dry grain, in two crop seasons (summer and winter), in the semiarid region of Brazil. The experimental design was performed in randomized blocks, with four replications. In both crops, the treatments consisted of four doses of N (0, 80, 160, and 240 kg ha-1) applied in the form of urea. In the hybrid corn (Bt Feroz), the N content was evaluated in terms of leaves, grain yield, gross and net incomes, the rate of return, and the profitability index. Independent of the crop season, the yield of dry grain (5,441.03 kg ha-1) was highest when the corn was fertigated with a dose of 104.05 kg ha-1 N. The highest net incomes of the dry grain were obtained with 80 kg ha-1 N in summer (R$ 1,190.78 ha-1) and 160 kg ha-1 N in winter (R$ 2,757.54 ha-1). The winter crop was more favorable to the economic production of dry grain.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303067924054
dc.identifierhttps://www.redalyc.org/journal/3030/303067924054/
dc.identifierhttps://www.redalyc.org/journal/3030/303067924054/html/
dc.identifierhttps://www.redalyc.org/journal/3030/303067924054/303067924054.epub
dc.identifierhttps://www.redalyc.org/journal/3030/303067924054/movil
dc.identifier10.4025/actasciagron.v43i1.52045
dc.identifier.urihttp://hdl.handle.net/123456789/447014
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Vol.43
dc.subjectAgrociencias
dc.titleEconomic nitrogen doses via fertigation for corn cultivation in a semiarid environment
dc.typeartículo científico

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Acta Scientiarum. Agronomy - Universidade Estadual de Maringá