Efficient inoculation of diazotrophic bacteria into sugarcane by the drip irrigation system

Authors

  • Welson Lima Simões Embrapa Semiárido, BR-428, Km 152, Zona Rural, Caixa Postal 23, CEP 56302-970 Petrolina, PE.
  • Anderson Ramos de Oliveira Embrapa Semiárido, BR-428, Km 152, Zona Rural, Caixa Postal 23, CEP 56302-970 Petrolina, PE.
  • Moises Alves de Souza Universidade do Estado da Bahia, Departamento de Tecnologias e Ciência Sociais, Avenida Dr. Chastinet Guimarães, s/no, São Geraldo, CEP 48900-000 Juazeiro, BA.
  • Verônica Massena Reis Embrapa Agrobiologia, Rodovia BR-465, Km 7, Ecologia, Caixa Postal 74505, CEP 23891-000 Seropédica, RJ.
  • Paulo Ivan Fernandes-Júnior Embrapa Semiárido, BR-428, Km 152, Zona Rural, Caixa Postal 23, CEP 56302-970 Petrolina, PE.

DOI:

https://doi.org/10.1590/S1678-3921.pab2019.v54.26612

Keywords:

biological nitrogen fixation, Brazilian semiarid region, inoculant, plant-growth promoting bacteria

Abstract

The objective of this work was to assess the efficiency of the inoculation of a diazotrophic bacterial consortium by the drip irrigation system into sugarcane (Saccharum spp.), in the Brazilian semiarid region. The evaluated treatments were: standard inoculation by submersion; one or two inoculations by drip irrigation; nitrogen (urea) applied by fertigation; and negative controls, without inoculation or nitrogen fertilization. Leaf gas exchanges and plant growth and yield were assessed. Inoculation by irrigation is efficient for all variables, and double inoculation by the drip irrigation system stands out, increasing stem yield in 16% when compared with the negative control, without differing from the treatment with nitrogen fertilizer.

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Published

2019-11-06

How to Cite

Simões, W. L., Oliveira, A. R. de, Souza, M. A. de, Reis, V. M., & Fernandes-Júnior, P. I. (2019). Efficient inoculation of diazotrophic bacteria into sugarcane by the drip irrigation system. Pesquisa Agropecuaria Brasileira, 54(X), e01110. https://doi.org/10.1590/S1678-3921.pab2019.v54.26612

Issue

V.54, Jan./Dec., 2019 :Continuos publication

Section

MICROBIOLOGY