Mineral and organomineral sources of nitrogen to maize agronomic performance

Authors

  • Marcelo Alves da Rocha Dias Universidade Federal de Uberlândia Laboratório de Manejo de Solos
  • Regina Maria Quintão Lana
  • José Geraldo Mageste da Silva Universidade Federal de Uberlândia - ICIAG
  • Odair José Marques
  • Adriane de Andrade Silva
  • Ernane Miranda Lemes
  • Daniel Martins da Silva
  • Jéssica Mieko Ota Alves

DOI:

https://doi.org/10.14393/BJ-v36n5a2020-45632

Keywords:

Zea mays L., Fertilizer technology, Grain yield, Urea, Organomineral

Abstract

Nitrogen (N) is one of the nutrients absorbed in great quantity by maize crop. Also, N fertilizers are of high costs and subject to large losses into the agricultural environment. There are various categories of fertilizers known as fertilizers of improved efficiency that can minimize such N losses. The objective of this study was to evaluate the effect of different sources and doses of N in maize agronomic performance. The experiment was installed in randomized blocks, with four replications, designed as a factorial 5 x 5 + 1, constituted by five N sources (urea, urea polymerized, urea with NBPT, organomineral with and without NBPT), five N doses (40, 80, 120, 160, 200 kg ha-1) plus a control (no N supply). The chlorophyll contents and grain yield were evaluated. The results showed no differences for the different N sources, indicating that the organomineral sources are as efficient as the mineral sources. The addition of N fertilizers in increasing doses, regardless of the source tested, has increased the levels of chlorophylls and grain yiled.

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Author Biographies

Marcelo Alves da Rocha Dias, Universidade Federal de Uberlândia Laboratório de Manejo de Solos

Engenheiro Agrônomo. 

MS em Agronomia - UFU 

José Geraldo Mageste da Silva, Universidade Federal de Uberlândia - ICIAG

Engenheiro Florestal 

MS in Soil and Plant Nutrition

Ph.D em Forest Managemennt

Especialização em Sistemas Agroflorestais

Especialização em Aproveitamento de Resíduos Sólidos. 

Pós-Doctor em Nutrição Florestal. 

 

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Published

2020-08-13

How to Cite

DA ROCHA DIAS, M.A., LANA, R.M.Q.., DA SILVA, J.G.M., MARQUES, O.J.., SILVA, A. de A.., LEMES, E.M.., SILVA, D.M. da . and ALVES, J.M.O.., 2020. Mineral and organomineral sources of nitrogen to maize agronomic performance. Bioscience Journal [online], vol. 36, no. 5, pp. 1528–1534. [Accessed29 May 2022]. DOI 10.14393/BJ-v36n5a2020-45632. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/45632.

Issue

Section

Agricultural Sciences