Economic and soil quality indicators in soybean crops grown under integrated crop-livestock and winter-grain cultivation systems/Relacao entre indicadores economicos e edaficos de qualidade do solo em lavouras de soja com ILP ou producao de graos no inverno
This study aimed to evaluate the relationship between economic indicators of soybean crops (Glycine max L.) cultivated with Crop-Livestock Integration (CLI) or with grain production in winter, and the chemical, physical and biological attributes of the soil. It was selected ten agricultural sites in...
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Veröffentlicht in: | Ciência rural 2016-07, p.1165 |
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Sprache: | spa |
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Zusammenfassung: | This study aimed to evaluate the relationship between economic indicators of soybean crops (Glycine max L.) cultivated with Crop-Livestock Integration (CLI) or with grain production in winter, and the chemical, physical and biological attributes of the soil. It was selected ten agricultural sites in Santa Catarina to measure economic results and edaphic attributes, data was submitted to a Principal Components Analysis (PCA). Results indicated that soybean production in the summer and grain production in the winter yielded better economic results compared with summer soybean and CLI in winter This reflects the higher productivity of the crops (9.1%) and the improved chemical, physical, and biological attributes of the soil (with the exception of organic matter content and macroporosity, which were better under the soybean system with CLI). Key words: crop-livestock integration, cost of production, multivariate analysis. O estudo teve como objetivo avaliar a relacao entre resultados economicos de lavouras de soja (Glycine max L.) cultivadas com Integracao Lavoura-Pecuaria (ILP) ou producao de graos no inverno e atributos quimicos, fisicos e biologicos do solo. Foram selecionadas dez propriedades rurais, consideradas referenda em Santa Catarina, para a determinacao dos resultados economicos das lavouras de soja e dos atributos edaficos, que foram submetidos a analise de componentes principais (ACP). Os resultados indicam que o sistema de producao de soja no verao e graos no inverno apresentou melhores resultados economicos em comparacao com o sistema de soja no verao e ILP no inverno. Este resultado decorre da maior produtividade das lavouras (9,1%), devido as melhores condigoes quimicas, fisicas e biologicas do solo, com excecao do teor de materia organica e da macroporosidade, que ficaram mais associadas ao sistema soja com ILP. Palavras-chave: integracao lavoura-pecuaria, custo de producao, analise multivariada. |
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ISSN: | 0103-8478 |
DOI: | 10.1590/0103-84478cr20150445 |