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

Phosphorus and silicon fertilizer rates effects on dynamics of soil phosphorus fractions in oxisol under common bean cultivation

Alessandra Mayumi Tokura Alovisi
  • Alessandra Mayumi Tokura Alovisi
  • Post-Graduation Program in Agronomy, Universidade Federal da Grande Dourados (UFGD), City of Dourados, State of Mato Grosso do Sul, Brazil.
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Antonio Eduardo Furtini Neto
  • Antonio Eduardo Furtini Neto
  • Soil Science Department, Universidade Federal de Lavras (UFLA), City of Lavras, State of Minas Gerais, Brazil.
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Ademar Pereira Serra
  • Ademar Pereira Serra
  • Brazilian Agricultural Research Corporation (EMBRAPA), City of Campo Grande, State of Mato Grosso do Sul, Brazil.
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Alves Alexandre Alovisi
  • Alves Alexandre Alovisi
  • Department of Crop Production, Universidade Federal da Grande Dourados (UFGD), City of Dourados, State of Mato Grosso do Sul, Brazil.
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Luciene Kazue Tokura
  • Luciene Kazue Tokura
  • Universidade Estadual do Oeste do Paraná, Cascavel, Paraná, Brazil.
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Elaine Reis Pinheiro Lourente
  • Elaine Reis Pinheiro Lourente
  • Post-Graduation Program in Agronomy, Universidade Federal da Grande Dourados (UFGD), City of Dourados, State of Mato Grosso do Sul, Brazil.
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Robervaldo Soares da Silva
  • Robervaldo Soares da Silva
  • Department of Crop Production, Universidade Federal da Grande Dourados (UFGD), City of Dourados, State of Mato Grosso do Sul, Brazil.
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Camila Farah Borges da Silva
  • Camila Farah Borges da Silva
  • Department of Agronomy, Universidade Federal da Grande Dourados (UFGD), City of Dourados, State of Mato Grosso do Sul, Brazil.
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Jucinei Souza Fernandes
  • Jucinei Souza Fernandes
  • Department of Crop Production, Universidade Federal da Grande Dourados (UFGD), City of Dourados, State of Mato Grosso do Sul, Brazil.
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  •  Received: 07 June 2016
  •  Accepted: 14 July 2016
  •  Published: 28 July 2016

Abstract

The purpose of this research was to evaluate the effects of P and Si fertilizer rates in dynamic of P fractions in clay soil under greenhouse. The research was carried out in a Dystroferric Red Latosol of a very loamy texture from Lavras city, Minas Gerais State, Brazil. The experimental design was entirely randomized, arranged in 4 × 3 factorial design, with four repetitions. The treatments included four inorganic fertilizer P rates (0, 110, 330 and 560 mg dm-3) and three Si rates (0, 110, 330 and 560 mg dm-3). The preview application of Si fertilizer did not contribute to decrease P desorption. Possibly, the silicate has lower affinity with the bound sites of adsorption than phosphates. The effects of inorganic fertilizer P were higher in increasing the moderately labile and labile P inorganic fractions. Among the organic P fractions, the NaHCO3-Po fraction was the only one that contributes to plant nutrition. The Hedley sequential phosphorus fractionation promoted information about different pools where P was accumulated in the soil after common bean cultivation. The highest amount of P was obtained in stable P fraction, followed by moderately labile and labile P fraction. The moderately labile P fraction decreased after common bean cultivation possibly due to the time of P contact in the soil and redistribution to stable P fraction. The labile form was the lowest P pool in soil; nevertheless the increase in fertilizer P rates increases the amount of P content in labile fraction.

 

Key words: P fertilizer, Si fertilizer, nutrients interaction, Phaseolus vulgaris.