Correlação espacial e linear de atributos físicos do solo em sistema de integração lavoura pecuária
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2017
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The integrated crop-livestock system (ILP) is considered more productive and sustainable because it encourages diversification, rotation of agricultural activities and livestock within the farm, providing benefits to both. The objective of this study was to evaluate the spatial variability and the correlation of soil physical properties in the ILP system. For that a regular sampling grid of 25m x 25m was created, totaling 50 points in an area of 7 ha, with two types of coverage. The sampling points were georeferenced. Undisturbed samples were taken in each at two depths: P1 (0.00 to 0.10 m) and P2 (0.20 to 0.30 m). Soil moisture, bulk density and resistance to penetration were measured. For descriptive statistical analysis, spatial correlations and the construction of kriging maps using the GS + version 7.0 software. Linear correlations were made using the R version 3.1.1 software. The linear correlation between the assessed physical attributes were classified as poor. The spatial correlation and kriging maps of the attributes presented a spatial dependence index classified as weak, explained by Gaussian models, exponential and spherical.
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Agricultura de precisão, Geoestatística, Dependência espacial, Precision agriculture, Geostatistics, Spatial dependence
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OLIVEIRA, Danilo Gomes de et al. Correlação espacial e linear de atributos físicos do solo em sistema de integração lavoura pecuária. Ciência Agrícola, Rio Largo (Alagoas), v. 15, n. 1, p. 69-77, 2017. DOI: 10.28998/rca.v15i1.2470. Disponível em: https://www.seer.ufal.br/index.php/revistacienciaagricola/article/view/2470. Acesso em: 24 jan. 2025.