African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Full Length Research Paper

Broccoli growth and nutritional status as influenced by doses of nitrogen and boron

Gilmara Pereira da Silva
  • Gilmara Pereira da Silva
  • Department of Soils and Fertilizers; Universidade Estadual Paulista Julio de Mesquita Filho, Prof. Access Road Paulo Donato Castellane, s /n, Jaboticabal, SP, Brazil.
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Renato de Mello Prado
  • Renato de Mello Prado
  • Department of Soils and Fertilizers; Universidade Estadual Paulista Julio de Mesquita Filho, Prof. Access Road Paulo Donato Castellane, s /n, Jaboticabal, SP, Brazil.
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Gabriel Barbosa da Silva Júnior
  • Gabriel Barbosa da Silva Júnior
  • Department of Soils and Fertilizers; Universidade Estadual Paulista Julio de Mesquita Filho, Prof. Access Road Paulo Donato Castellane, s /n, Jaboticabal, SP, Brazil.
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Sylvia Letícia Oliveira Silva
  • Sylvia Letícia Oliveira Silva
  • Department of Soils and Fertilizers; Universidade Estadual Paulista Julio de Mesquita Filho, Prof. Access Road Paulo Donato Castellane, s /n, Jaboticabal, SP, Brazil.
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Fábio Tiraboschi Leal
  • Fábio Tiraboschi Leal
  • Department of Soils and Fertilizers; Universidade Estadual Paulista Julio de Mesquita Filho, Prof. Access Road Paulo Donato Castellane, s /n, Jaboticabal, SP, Brazil.
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Leonardo Correia Costa
  • Leonardo Correia Costa
  • Department of Soils and Fertilizers; Universidade Estadual Paulista Julio de Mesquita Filho, Prof. Access Road Paulo Donato Castellane, s /n, Jaboticabal, SP, Brazil.
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Victor Manuel Vergara Carmona
  • Victor Manuel Vergara Carmona
  • Department of Soils and Fertilizers; Universidade Estadual Paulista Julio de Mesquita Filho, Prof. Access Road Paulo Donato Castellane, s /n, Jaboticabal, SP, Brazil.
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  •  Received: 19 October 2015
  •  Accepted: 17 February 2016
  •  Published: 19 May 2016

Abstract

Proper growth and development of broccoli may be affected by the application of N and B. Accordingly, the objective herein was to verify the effects of N and B application on growth and the nutritional status in the vegetative phase of broccoli. The experimental design was a completely random one in a factorial (4 × 2 +1) scheme, with four doses of B (0.25, 0.50, 1.00, and 2.00 mg dm-3) and two doses of N (200 and 600 mg dm-3), and the check treatment (no B and no N), with four repetitions. The green color index, the accumulation of N and B in the plant aerial part, leaf area, and the aerial part dry matter content were evaluated. The interaction between nitrogen and boron was not important for the green color index, N and B accumulation, leaf area and dry matter production of broccoli in the vegetative phase. However, the isolated effects of nitrogen fertilization and boron doses were beneficial for broccoli development.

Key words: Fertilization, Brassica oleraceae var. italic, vegetative phase.