Ammonia volatilization in response to coated and conventional urea in maize crop field

Authors

  • Flávio Hiroshi Kaneko Universidade Federal do Triângulo Mineiro
  • João Paulo Ferreira Centro Universitário Padre Albino
  • Aguinaldo José Freitas Leal Universidade Federal do Triângulo Mineiro
  • Salatiér Buzetti Universidade Estadual Paulista
  • André Rodrigues dos Reis Universidade Estadual Paulista
  • Orivaldo Arf Universidade Estadual Paulista

DOI:

https://doi.org/10.14393/BJ-v35n3a2019-41772

Keywords:

Loss of N, Efficient fertilizer usage, Cerrado, Polymer, No-till planting system

Abstract

The properly measurement of gas emissions and nutrient availability to crops using technologies such as polymer-coated urea are required to monitored the possible nitrogen (N) fertilizer pollution in the environment. This study aimed to evaluate N loss through ammonia volatilization from polymer-coated and conventional urea in maize field trials under two different environments. The study was carried out in Chapadão do Sul and Selvíria State of Mato Grosso do Sul evaluating the first and second harvest of maize plants. Nitrogen fertilizers were applied as polymer-coated, conventional urea and control plots were used as reference to evaluate N loss through volatilization (3, 6, 9, 12, and 15 days after fertilizer application).  The peak of ammonia volatilization was observed during the first three days after fertilizer application corresponding up to 44% of total N supplied. Polymer-coated urea had promising results showing less ammonia volatilization during the first crop. However, the same result was not observed for second crop.

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Published

2019-06-11

How to Cite

KANEKO, F.H., FERREIRA, J.P., LEAL, A.J.F., BUZETTI, S., REIS, A.R. dos and ARF, O., 2019. Ammonia volatilization in response to coated and conventional urea in maize crop field. Bioscience Journal [online], vol. 35, no. 3, pp. 713–722. [Accessed25 May 2022]. DOI 10.14393/BJ-v35n3a2019-41772. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/41772.

Issue

Section

Agricultural Sciences