AVALIAÇÃO COMPARATIVA DA RESISTÊNCIA DO SOLO EM ÁREA NATIVA E DE EXPLORAÇÃO AGROPECUÁRIA UTILIZANDO PENETRÔMETRO ELETRÔNICO

Abstract

The present study aimed to evaluate the mechanical resistance to penetration of the soil in areas with agricultural exploration comparing them with an area of forest without influences of exploratory activities in the municipality of Areia-PB, from an digital electronic penetrometer Falker ® PentrologPLG 5200, where presents a soil characterized as a Red Yellow Oxisol. With this penetrometer, studies sought check the degree of mechanization used in agricultural area and under compared to pasture area of native forest of mechanized free handling at different depths. In the evaluating this area along the soil profile was analyzed the resistance of the soil at a depth of 40 cm, taking into account layers along its profile (P1 = 0 – 10 cm; P2 = 10-20 cm; P3 = 20-30 cm; and P4 = 30-40 cm). The perimeter of the area was obtained through GPS navigation Garmin GPS map60 CSx with datum WGS84 and UTM coordinate system. The data were submitted to Tukey test at 5% probability and there was found no significant interaction in the local factor.