BIOLOGICAL NITROGEN FIXATION, SOURCES AND LEVELS OF N INCREASE THE MAIZE GRAIN YIELD IN CERRADO

Authors

  • FLAVIO HIROSHI KANEKO Universidade Federal do Triângulo Mineiro
  • JOÃO PAULO FERREIRA Faculdade de Ciências Sociais e Agrárias de Itapeva
  • MICHELLE TRAETE SABUNDJIAN Faculdade de Ciências Sociais e Agrárias de Itapeva
  • AGUINALDO JOSÉ FREITAS LEAL Universidade Federal do Triângulo Mineiro
  • ERIC HAYDT CASTELLO BRANCO VAN CLEEF Universidade Federal do Triângulo Mineiro
  • ANDRÉ RODRIGUES REIS Universidade Estadual Paulista "Julio de Mesquita Filho" campus Tupã
  • SALATIÉR BUZETTI Universidade Estadual Paulista "Julio de Mesquita Filho" campus Ilha Solteira
  • MARCELO VALENTINI ARF Fundação Chapadão
  • ORIVALDO ARF Universidade Estadual Paulista "Julio de Mesquita Filho" campus Ilha Solteira

DOI:

https://doi.org/10.18512/1980-6477/rbms.v18n2p234-244

Keywords:

Azospirillum brasilense

Abstract

The objective of this study was to evaluate the effects of inoculation with A. brasilense, sources and levels of sidedress nitrogen (N) on agronomic traits of maize cultivated in two regions of Brazilian Cerrado during the summer season. The experiments were conducted during the 2011/12 growing season in Chapadão do Sul and Selvíria Cities, State of Mato Grosso do Sul, Brazil. The experimental design consisted of a randomized complete block design with a 2 × 2 × 5 factorial scheme (with and without inoculation with A. brasilense, two sources of N [regular urea and polymer coated urea], and 5 levels of sidedress N [0, 45, 90, 135, and 180 kg ha-1], with 4 replicates for each location. The inoculation with A. brasilense, in the absence of sidedress N significantly increased the maize yield cultivated in Selvíria. However, the inoculation showed no effect on maize yield when cultivated in Chapadão do Sul. The polymer coated urea provided greater maize yield cultivated in Chapadão do Sul, however, no difference between sources of urea were observed in Selvíria. The greatest levels of sidedress N, without inoculation with A. brasilense showed the greatest maize yield in both locations.

Author Biography

FLAVIO HIROSHI KANEKO, Universidade Federal do Triângulo Mineiro

Adubação e tratos culturais na cultura do milho e sorgo.

Manejo do solo e rotação de culturas.

Análise econômica referente a manejo e tratos culturais na cultura do milho e sorgo.

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Published

2019-12-19

How to Cite

KANEKO, F. H., FERREIRA, J. P., SABUNDJIAN, M. T., FREITAS LEAL, A. J., VAN CLEEF, E. H. C. B., REIS, A. R., BUZETTI, S., ARF, M. V., & ARF, O. (2019). BIOLOGICAL NITROGEN FIXATION, SOURCES AND LEVELS OF N INCREASE THE MAIZE GRAIN YIELD IN CERRADO. REVISTA BRASILEIRA DE MILHO E SORGO, 18(2), 234–244. https://doi.org/10.18512/1980-6477/rbms.v18n2p234-244

Issue

Vol. 18 No. 2 (2019)

Section

Scientific Paper

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