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

Physical properties of a latosol eutrophic red under management systems after different winter crops successful by the soybean crop

Poliana Ferreira Da Costa*
  • Poliana Ferreira Da Costa*
  • 1Universidade Federal da Grande Dourados – UFGD – Dourados, Brazil.
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Paulo Sergio Rabello De Oliveira
  • Paulo Sergio Rabello De Oliveira
  • Universidade Estadual do Oeste do Paraná – UNIOESTE, Brazil.
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Jeferson Tiago Piano
  • Jeferson Tiago Piano
  • Universidade Estadual do Oeste do Paraná – UNIOESTE, Brazil.
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Loreno Egidio Taffarel
  • Loreno Egidio Taffarel
  • Universidade Estadual do Oeste do Paraná – UNIOESTE, Brazil.
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Milciades Ariel Melgarejo Arrua
  • Milciades Ariel Melgarejo Arrua
  • Universidade Estadual do Oeste do Paraná – UNIOESTE, Brazil.
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Marcos Vinícius Mansano Sarto
  • Marcos Vinícius Mansano Sarto
  • Universidade Estadual Paulista Júlio de Mesquita Filho – UNESP, Brazil.
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Shaline Sefara Lopes Fernandes
  • Shaline Sefara Lopes Fernandes
  • Universidade Estadual de Mato Grosso do Sul – UENS, Brazil.
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  •  Received: 14 June 2016
  •  Accepted: 17 August 2016
  •  Published: 06 October 2016

Abstract

The objective was to verify the influence of winter crops under management mechanical (roller knife) and chemical (glyphosate), on soil physical properties and yield of soybeans. The experiment was carried out at the field under randomized block design in tracks scheme. The treatments consisted of four different winter crops (oats IPR 126, wheat BRS Tarumãt crambe FMS Bright and forage radish cultivar common) in tracks A and  management different  (chemical and mechanical) in bands B. The soil properties (macroporosity, microporosity, total porosity and density) were determined by collecting soil core in layers 0-10 and 10-20 cm depth, penetration resistance was determined with the aid of a penetrometer impact to a depth of 30 cm. The soybean harvest was held on 03/12/13, collecting two lines of the floor area of each plot. The evaluations were carried out after the winter crop management and post-harvest of soybeans. There was no significant difference in the interaction of the factors to the values of the porosity in the layer 0-10 cm of soil. As to the values obtained for the penetration resistance of the soil, it was found that the oat (0.91 MPa) and crambe (1.43 MPa) provided significant differences in the layer 0-5 cm depth, after the cycle of winter crops. Winter crops and different managements not affect soybean yield.

Key words: Plantation direct, compaction, conservation systems, soil structure.