EFFECTS OF SOIL TILLAGE AND CROP ROTATION SYSTEMS ON SOIL PHYSICAL ATTRIBUTES

Authors

  • Américo Nunes da Silveira Neto
  • Pedro Marques da Silveira
  • Luís Fernando Stone
  • Luiz Fernando Coutinho de Oliveira

Keywords:

Savannah, millet, corn, no-tillage, soybean, common bean

Abstract

The objective of this study was to evaluate the effects of soil tillage and crop rotation systems on soil physical attributes. The experiment was conducted for five consecutive years and ten crop seasons in a dystrophic Oxisol in Santo Antônio de Goiás, Goiás State, Brazil, in a completely randomized design with four replications arranged in a 2 x 4 factorial split plot. Tillage systems were assigned to plots: (P1) no-tillage followed by plowing and (P2) continuous no-tillage; and crop rotations were assigned to subplots: (R1) millet - common bean - millet - common bean - rice - common bean - millet - common bean - millet - common bean, (R2) millet - common bean - soybean - common bean - rice - common bean - millet - common bean - corn - common bean, (R3) millet - common bean - millet - common bean - rice - common bean - corn - common bean, and (R4) soybean - common bean - corn - common bean - rice - common bean - soybean - common bean - corn - common bean. Tillage and crop rotation systems affected soil bulk density, macroporosity, and total porosity. Continuous no-tillage increased soil bulk density and decreased soil macroporosity and total porosity. Soil organic matter content was inversely correlated to soil bulk density and directly correlated to soil macroporosity.

KEY-WORDS: Savannah; millet; corn; no-tillage; soybean; common bean.

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Author Biography

Américo Nunes da Silveira Neto

Centro de Ciências Agrárias e Biológicas, Universidade Federal de Goiás, Campus de Jataí. Caixa Postal 131,
CEP 75.800-000, Jataí, GO. E-mail: americonsneto@zipmail.com.br

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Published

2007-10-27

How to Cite

NETO, A. N. da S.; SILVEIRA, P. M. da; STONE, L. F.; OLIVEIRA, L. F. C. de. EFFECTS OF SOIL TILLAGE AND CROP ROTATION SYSTEMS ON SOIL PHYSICAL ATTRIBUTES. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 36, n. 1, p. 29–35, 2007. Disponível em: https://revistas.ufg.br/pat/article/view/2169. Acesso em: 22 nov. 2024.

Issue

v. 36, n. 1, Jan./Apr. 2006

Section

Research Article

License

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