Perdas de solo por salpicamento em solos de basalto sob diferentes manejos

Abstract

The splashing of soil particles is the first stage of the erosion process, where disintegration is caused by the kinetic energy of the impact of raindrops on the unprotected soil surface. Based on this assumption, the aim of this work was to investigate soil losses caused by splashing in different agricultural management systems. To this end, the work was carried out in the municipality of Clevelândia-PR, in an area planted with maize, where the soil collectors were placed. The experimental design used was a randomized block design with two treatments. The treatments consisted of no soil cover and soil cover. After the samples had been collected, they were dried and homogenized for subsequent weighing on a precision scale and statistical analysis of multiple comparisons of means using the Tukey test. The study found that the mulch treatment significantly reduced soil loss by splashing when compared to exposed soil, regardless of the phenological stage of the established crop and the rainfall regime during the period evaluated. From this, it can be concluded that vegetation cover plays a crucial role in protecting against erosion caused by sprinkling, being able to directly reduce the quantities of particles disaggregated and sprinkled by the interception-dampening relationship.