African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6576

Full Length Research Paper

Broadcast and in line application of phosphorus in soils with different densities

Luciano de Souza Maria
  • Luciano de Souza Maria
  • Department of Agronomy, Faculty of Agrarian and Biological Sciences, Campus of Alta Floresta – MT, University of the State of Mato Grosso, Brazil.
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Ivone da Silva Neves
  • Ivone da Silva Neves
  • Department of Agronomy, Faculty of Agrarian and Biological Sciences, Campus of Alta Floresta – MT, University of the State of Mato Grosso, Brazil.
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Henildo de Souza Pereira
  • Henildo de Souza Pereira
  • Department of Agronomy, Faculty of Agrarian and Biological Sciences, Campus of Alta Floresta – MT, University of the State of Mato Grosso, Brazil.
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Guilherme Ferreira Ferbonink
  • Guilherme Ferreira Ferbonink
  • Department of Agronomy, Faculty of Agrarian and Biological Sciences, Campus of Alta Floresta – MT, University of the State of Mato Grosso, Brazil.
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Gustavo Caione
  • Gustavo Caione
  • Department of Agronomy, Faculty of Agrarian and Biological Sciences, Campus of Alta Floresta – MT, University of the State of Mato Grosso, Brazil.
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Flavia de Bastos Agostinho
  • Flavia de Bastos Agostinho
  • Department of Environmental and Soil Sciences, School of Plant, Louisiana State University Baton Rouge, Louisiana, USA .
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  •  Received: 10 July 2018
  •  Accepted: 21 August 2018
  •  Published: 13 September 2018

Abstract

The efficiency of broadcast versus in line phosphate fertilization has been studied; however, soil density as a determining factor for soil efficiency has been less studied.  Thus, the objective of this study was to evaluate the effect of broadcast and in line phosphate fertilization in soil with different densities on corn development. The experiment was conducted in pots under greenhouse condition. A completely randomized design was used in a 2x3 factorial arrangement with four replications. Treatments were two levels of soil densities (1.2 and 1.6 g cm-3) and three forms of P application (broadcast, in line and without P). Corn stem diameter, plant height, root volume, root and shoot dry matter, and root and shoot phosphorus content and accumulation were evaluated. Application in line resulted in higher P accumulation by corn plant. There was higher plant dry matter accumulation at soil density 1.2 g cm-3 than at 1.6 g cm-3. Phosphate fertilization in line at soil density 1.2 g cm-3 enhances dry matter accumulation in corn plants.

Key words: Compaction, macronutrient, phosphorus, soil fertility.