Nitrogen during the establishment period of Mombasa grass

Authors

  • Márcio Odilon Dias Rodrigues Universidade Federal do Tocantins
  • Antonio Clementino dos Santos Universidade Federal do Tocantins
  • Marcos Odilon Dias Rodrigues Universidade Federal do Tocantins
  • Otacilio Silveira Junior Universidade Federal do Tocantins
  • Luciano Fernandes Sousa Universidade Federal do Tocantins
  • Ana Flávia Gouveia de Faria Universidade Estadual do Tocantins

DOI:

https://doi.org/10.5433/1679-0359.2017v38n1p513

Keywords:

Agronomic efficiency, Nitrogen fertilizer, Panicum maximum Jacq, Nitrogen recovery.

Abstract

The aim of this study was to investigate the effect of nitrogen (N) concentration during the establishment period of Mombasa grass (Panicum maximum Jacq.). The experiment was conducted using four different N concentrations (0, 30, 60 and 90 kg N/ha) during the establishment period in order to evaluate the effect of nitrogen on the plant. These effects were assessed using different indexes, including the efficiency of nitrogen use and agricultural, physiological and nutritional efficiencies. We also determined the total dry matter and nitrogen accumulation in the plant. The recovery of applied N and the agronomic efficiency of Mombasa grass were found to be greater with increasing N concentrations, and all indexes tested were found to be affected by the concentration of applied N. Based on the indexes studied, 90 kg N/ha was found to be most suitable for Mombasa grass during the establishment period.

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Author Biographies

Márcio Odilon Dias Rodrigues, Universidade Federal do Tocantins

Discente de Doutorado, PPGCat, Universidade Federal do Tocantins, UFT, campus Araguaína, TO, Brasil.

Antonio Clementino dos Santos, Universidade Federal do Tocantins

Prof., UFT, Campus Araguaína, TO, Brasil.

Marcos Odilon Dias Rodrigues, Universidade Federal do Tocantins

Discente de Doutorado, PPGCat, Universidade Federal do Tocantins, UFT, campus Araguaína, TO, Brasil.

Otacilio Silveira Junior, Universidade Federal do Tocantins

Discente de Doutorado, PPGCat, Universidade Federal do Tocantins, UFT, campus Araguaína, TO, Brasil.

Luciano Fernandes Sousa, Universidade Federal do Tocantins

Prof., UFT, Campus Araguaína, TO, Brasil.

Ana Flávia Gouveia de Faria, Universidade Estadual do Tocantins

Profª, Universidade Estadual do Tocantins, UNITINS, Campus Palmas, TO, Brasil.

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Published

2017-03-02

How to Cite

Rodrigues, M. O. D., Santos, A. C. dos, Rodrigues, M. O. D., Silveira Junior, O., Sousa, L. F., & Faria, A. F. G. de. (2017). Nitrogen during the establishment period of Mombasa grass. Semina: Ciências Agrárias, 38(1), 513–520. https://doi.org/10.5433/1679-0359.2017v38n1p513

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