PATINAGEM DE UM TRATOR AGRÍCOLA EM DIFERENTES OPERAÇÕES DE PREPARO DE SOLO

Abstract

The performance of soil preparation implements can be influenced by the physical characteristics of the soil. Under different soil moisture conditions, the performance of some of its physical properties changes. The objective of this work was to quantify the variables related to the slippage of a tractor operating on soil with four different implements under two soil moisture conditions. The work was conducted at IF Goiano Campus Morrinhos. A 2x4 factorial design in split plots with four replications was used. Mechanized operations were performed on the soil with two moisture contents and four preparation operations: harrowing, subsoiling, plowing, and rotary tilling. Moisture was measured using the oven method, and the profile was determined from samples collected in the 0-20 cm depth layer. Before the passage of the mechanized sets, the following attributes were evaluated: penetration resistance, bulk density, and water content. After the passage of the mechanized set, the slippage index and bulk density values of the soil were analyzed. The values found were analyzed through an analysis of variance and subjected to Tukey's test at a 5% probability level. The influence of water content, combined with soil texture parameters and physical properties, can modify the variables, where the tendency is that, with implements at greater depth, there will be greater soil disturbance and an increase in the slippage index