Economic and soil quality indicators in soybean crops grown under integrated crop-livestock and winter-grain cultivation systems

Relação entre indicadores econômicos e edáficos de qualidade do solo em lavouras de soja com ILP ou produção de grãos no inverno

ABSTRACT:

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