Produtividade de grãos de milho em função dos atributos físicos do solo

Abstract

Corn (Zea mays L.) is currently one of the most important crops, being the most cultivated cereal and used in human and animal food. The objective of this work was to analyze the yield of corn grain as a function of soil physical attributes. The research was carried out in an experimental area located in the municipality of Nossa Senhora da Glória – Sergipe. We collected 40 soil samples deformed at depths from 0 to 20. The data were submitted to geostatistical analysis, performed by the QGIS software version 3.22.8 by the kriging method, while the descriptive statistics were made by the Microsoft Excel program, the Biplot graph was the product of the multivariate analysis obtained by the statistical software R through RStudio. The experiment was carried out in randomized blocks, with 120 plots of two lines with five meters of extension each. 62 varieties of corn were used, the spacing between rows was 80 cm and between plants 20 cm. The multivariate analysis allowed to visualize the behavior of the physical attributes of the soil in relation to corn grain yield. The attributes sand and moisture conditioned an increase in productivity, different from the attributes clay, silt and density that behaved in an inverse way.