Liquid nitrogen fertilization on the yield and phenologic variables of narrow-row cotton

Authors

  • Denis de Matos Silva Universidade Federal de Mato Grosso do Sul
  • Fabio Henrique Rojo Baio Universidade Federal de Mato Grosso do Sul
  • Cid Naudi da Silva Campos Universidade Federal de Mato Grosso do Sul
  • Simone Pereira da Silva Baio Universidade Federal de Mato Grosso do Sul
  • Danilo Carvalho Neves Universidade Federal de Mato Grosso do Sul
  • Eder Eujácio da Silva Universidade Federal de Mato Grosso do Sul
  • Paulo Eduardo Teodoro Universidade Federal de Mato Grosso do Sul

DOI:

https://doi.org/10.14393/BJ-v36n6a2020-48156

Keywords:

NDVI., Nitrogen., Correlation., Cotton.

Abstract

Slow-release liquid nitrogen fertilizer sources have been around since 1970. However, this technique is not widely used in the field, probably due to the low cost per ton of nitrogen in the solid form. This study aimed to evaluate the combination of the conventional and slow-release nitrogen fertilization on the yield and phenological variables in a narrow-row cotton crop. Treatments consisted of the combination of the nitrogen fertilizer applied as topdressing in solid form (via soil) and pulverized in the liquid form (via urea formaldehyde - UF): 0% of solid N + 0% of liquid N (0S0L); 100% of solid N + 0% of liquid N (100S0L); 75% of solid N + 25% of liquid N (75S25L); 50% of solid N + 50% of liquid N (50S50L); 25% of solid N + 75% of liquid N (25S75L); e 0% of solid N + 100% of liquid N (0S100L). The cotton crop was phenotypically evaluated at 35, 70, and 130 DAE (Days after emergence) and at the harvest time. The variation between the source of the solid nitrogen fertilizer applied to the soil (ammonium nitrate) and the liquid Nitrogen fertilizer applied by spraying (UF) affects the phenology, physiology, and yield components of the narrow-row cotton crop. The highest yield of the narrow-row cotton crop under the experimental conditions was achieved when 25% of the dose of the solid nitrogen fertilizer was applied as topdressing via soil, and 75% of the dose of the slow-release nitrogen fertilizer was sprayed. This technique provides higher profitability of the produced cotton in relation to the conventional application of the N solid fertilizer via soil.

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Published

2020-04-22

How to Cite

SILVA, D. de M., BAIO, F.H.R., CAMPOS, C.N. da S., BAIO, S.P. da S., NEVES, D.C., SILVA, E.E. da and TEODORO, P.E., 2020. Liquid nitrogen fertilization on the yield and phenologic variables of narrow-row cotton. Bioscience Journal [online], vol. 36, no. 6, pp. 1858–1866. [Accessed20 May 2022]. DOI 10.14393/BJ-v36n6a2020-48156. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/48156.

Issue

Section

Agricultural Sciences