| Journal: | Acta scientiarum. Agronomy |
| Database: | PERIÓDICA |
| System number: | 000459958 |
| ISSN: | 1679-9275 |
| Authors: | Souza, Ênio Gomes Flôr1 Cruz, Ellen Abreu da1 França, Rafaela Félix da3 Santos, Manoel Galdino dos4 Silva, Thieres George Freire da5 Leite, Mauricio Luiz de Mello Vieira5 Barros-Júnior, Aurélio Paes4 Bezerra-Neto, Francisco4 |
| Institutions: | 1Instituto Federal de Alagoas, Piranhas, Alagoas. Brasil 2Universidade Federal da Bahia, Salvador, Bahia. Brasil 3Universidade Federal Rural do Rio de Janeiro, Seropedica, Rio de Janeiro. Brasil 4Universidade Federal Rural do Semi-Arido, Mossoro, Rio Grande do Norte. Brasil 5Universidade Federal Rural de Pernambuco, Unidade Academica de Serra Talhada, Serra Talhada, Pernambuco. Brasil |
| Year: | 2021 |
| Volumen: | 43 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, analítico |
| English abstract | Producers 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 |
| Disciplines: | Agrociencias |
| Keyword: | Gramíneas, Riego y drenaje, Fertilización, Maíz, Zea mays, Nitrógeno, Fertirriego, Zonas semiáridas, Costos |
| Keyword: | Gramineae, Irrigation and drainage, Fertilization, Zea mays, Corn, Nitrogen, Fertirrigation, Semiarid zones |
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