Rendimento de grãos de milho em função de atributos físicos do solo

Abstract

The objective of this study was to construct mathematical models that to explain the behavior of maize grain yield, as a function of physical attributes, with the support of multiple regression analysis to determine the variables that most explain the Maize grain yield. The data for the study were obtained from an experiment in an area of 1 hectare belonging to the College Assis Gurgacz in September 2013. The area is located in the city of Cascavel – PR, the soil of the area was classified as a typical dystroferric red Latosol. The area was used in crop rotation under no-tillage system for five years, with soybean, maize, wheat and crambe crops. The samples were collected in the layers of 0.1-0.2 m, considering the intermediate depth of the vised layer. Thus, the following attributes and/or properties were determined: soil density (Ds), macroporosity (macro), microporosity (micro) and total porosity (Pt).