Análise das propriedades físicas de um argissolo sob diferentes manejos e intensidade de tráfego agrícola

Abstract

With increasing productivity in the field, it is necessary to find more conservationist forms of land use development. The objective of this study was to determine the physical properties of the soil in relation to the different forms of management (no-tillage and conventional tillage) and different intensities of traffic of agricultural machines. The experiment was carried out in 2017, in an Arsenic Red Dystrophic Alder, in the experimental area of the Farroupilha Federal Institute - Campus Alegrete. Soil managements analyzed were: no-tillage (PD) and conventional tillage (PC). For the determination of the physical properties, soil samples of different layers (0-10, 10-20, 20-30, 30-40 cm) were collected in different management conditions and traffic intensity, from one to three passages on the three tracks that will be analyzed. From this, soil moisture was determined; soil and particle density; soil penetration resistance. The data obtained and submitted to analysis of variance, where they present significance at the level of 1 and 5% of probability for the physical properties of the soil, having significance for approximately all the verifications, as well as their respective data interactions. After the analysis of variance, it was observed that some characteristics were modified as the traffic of agricultural machines intensified, however they also responded positively to the factors of soil management and depths of analysis.