Avaliação da matéria orgânica do solo em função da mudança da cobertura do solo no semiárido Pernambucano

Abstract

The objective of this work is to evaluate the behavior of MOS in different soil cover in the semi - arid region of Pernambuco. In a Haplic Cambisol, 5 treatment areas with different soil coverages were determined at MOS. 4 samples were taken in depth 0-10 cm. MOS was determined by muffle incineration at 600 ° C for 6 hours. The results were submitted to analysis of variance (ANOVA) and to the Tukey test at 5% of probability. The ANOVA showed a significant statistical difference at the 1% probability level in the "F" test for the MOS contents as a function of the soil cover. Thus, the SO of the soil shows a decreasing trend towards Native forest> agroforestry> degraded pasture> pasture> consortium in the order of 28.93%, 42.98%, 44.08% and 46.52% respectively. The MOS matter is similar to a small soil cover. As the changes in the base reduce the MOS content. And, agroforestry of MOS contents superior to the other agroecosystems