Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/34419
Título: Soil physical and biological properties in an integrated crop-livestock system in the brazilian cerrado
Título(s) alternativo(s): Propriedades físicas e biólogicas do solo em um sistema de integração lavoura-pecuária no Cerrado brasileiro
Palavras-chave: Animal traffic
No-tillage system
Soil aggregation
Soil compaction
Soil microbial biomass
Soil quality
Tráfego animal
Sistema plantio direto
Agregação do solo
Compactação do solo
Biomassa microbiana do solo
Qualidade do solo
Data do documento: Nov-2018
Editor: Embrapa Secretaria de Pesquisa e Desenvolvimento Pesquisa Agropecuária Brasileira
Citação: BONETTI, J. de A. et al. Soil physical and biological properties in an integrated crop-livestock system in the brazilian cerrado. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 11, p. 1239-1247, Nov. 2018.
Resumo: The objective of this work was to evaluate the soil physical and biological properties in an integrated crop-livestock system (ICLS), with or without cattle grazing, in different seasons. The experiment was carried out in the Cerrado biome, in Brazil, in a Rhodic Eutrudox. The treatments consisted of grazing areas (Urochloa ruziziensis) at 0.25, 0.35, and 0.45 m heights (with soybean cultivation after grazing) and of nongrazed areas. The ICLS had no negative effects on soil bulk density, total porosity, macroporosity, and microporosity. After ICLS implementation, the values of soil bulk density decreased, and those of soil macroporosity increased, in the grazed and nongrazed areas. However, after three years, bulk density and macroporosity were reestablished to values similar to those before ICLS implementation. Soil penetration resistance was higher in the ICLS, mainly at 0.00–0.05 m soil depth. After four years, ICLS promoted the increase of microbial biomass C and N and the reduction of the metabolic quotient. The microbial biomass carbon and the metabolic quotient were related to the weighted mean diameter. ICLS benefits to soil physical and biological properties are associated with adequate ICLS implementation, adequate grazing height (0.35 m), and maintenance of soil cover.
URI: http://repositorio.ufla.br/jspui/handle/1/34419
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