Management of nitrogen fertilization in maize cultivated in succession to black oats in a temperate climate

  • Ricardo Henrique Ribeiro Universidade Federal do Paraná Curitiba, Paraná, Brasil.
  • Marcos Renan Besen Universidade Estadual de Maringá Maringá, Paraná, Brasil.
  • Samuel Luiz Fioreze Universidade Federal de Santa Catarina Curitibanos, Santa Catarina, Brasil.
  • Jonatas Thiago Piva Universidade Federal de Santa Catarina Curitibanos, Santa Catarina, Brasil.
Keywords: Avena strigosa, nitrogen use efficiency, yield, Zea mays

Abstract

The objective of this study was to verify early nitrogen (N) fertilization on maize cultivated in succession to black oats. We conducted three experiments, relating to the 2012/13, 2013/14, and 2014/15 growing seasons, at UFSC-Curitibanos, in a randomized complete block experimental design, with four treatments and four replicates. The treatments were N management strategies in which the amount of N applied to maize was split into pre-sowing, at sowing, and topdressing times: (T1) control with no N application; (T2) 2/3 - 1/3 - 0; (T3) 1/3 - 1/3 - 1/3; and (T4) 0 - 1/3 - 2/3. The biometrics and productive potential parameters of the crop were evaluated. Application of N, regardless of the treatment, increased the yield. In 2012/13, there were no significant differences between the ways in which the N application was split, although they produced a higher yield than the control, resulting in a mean yield of 5,008 kg ha-1. In 2013/14, T2 was similar to T3 and T4, resulting in a yield of 9,858 kg ha-1; in 2014/15, T3 and T4 were similar, with a mean yield of 12,466 kg ha-1, while T2 resulted in a lower yield of 10,487 kg ha-1. When 2/3 of the N is applied pre-sowing, it is only effective when it is associated with the occurrence of a drought period at an early developmental stage of the plants. In adequate rainfall conditions, the early application of N fertilization is only effective when combined with a further 1/3 of the amount of N at sowing, and later as a topdressing.

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Author Biographies

Ricardo Henrique Ribeiro, Universidade Federal do Paraná Curitiba, Paraná, Brasil.

 

Mestrando em Ciência do Solo, Universidade Federal do Paraná, Curiitba, PAraná, Brasil.

Marcos Renan Besen, Universidade Estadual de Maringá Maringá, Paraná, Brasil.

Doutorando do programa de pós graduação em Agronomia

Universidade Estadual de Maringá
Maringá, Paraná, Brasil.

Samuel Luiz Fioreze, Universidade Federal de Santa Catarina Curitibanos, Santa Catarina, Brasil.

Professor de plantas cultivadas,

Universidade Federal de Santa Catarina
Campus de Curitibanos
Centro de Ciências Rurais
Departamento de Ciências Biológicas e Agronômicas

Jonatas Thiago Piva, Universidade Federal de Santa Catarina Curitibanos, Santa Catarina, Brasil.

Professor de manejo e Ferilidade do Solo,

Universidade Federal de Santa Catarina
Campus de Curitibanos
Centro de Ciências Rurais
Departamento de Ciências Biológicas e Agronômicas

Published
01-08-2018
How to Cite
Ribeiro, R., Besen, M., Fioreze, S., & Piva, J. (2018). Management of nitrogen fertilization in maize cultivated in succession to black oats in a temperate climate. Comunicata Scientiae, 9(2), 202-210. https://doi.org/10.14295/cs.v9i2.2585
Section
Original Article