Soil organic matter (SOM) plays an important role in carbon (C) cycle and soil quality. Considering the complexity of factors that control SOM cycling and the long time it usually takes to observe changes in SOM stocks, modeling constitutes a very important tool to understand SOM cycling in forest soils. The following hypotheses were tested: (i) soil organic carbon (SOC) stocks would be higher after several rotations of eucalyptus than in low-productivity pastures; (ii) SOC values simulated by the Century […]

The application of treated and stabilized sewage sludge to soils has been shown to be a viable disposal alternative, since costs are low and cause no negative impacts, but contribute to the restoration of the original characteristics of some degraded soils. This experiment was carried out in Mogi Guaçu, State of São Paulo (Brazil) to evaluate the effect of doses (0, 20, 40, and 80 Mg ha-1) of an organic compost of sewage sludge and grass residues on the recovery […]

The disposal of sewage sludge and other organic waste on the soil seems be an alternative for the public sector since this can provide nutrients for the growth and maintenance of plant species that constitute the urban systems of green areas. This experiment was conducted in Mogi Guaçu, State of São Paulo to evaluate the effect of doses (0, 20, 40 and 80 Mg ha-1) of an organic sewage sludge compost and grass residue on the recovery of a humusless […]

Revegetation with tree species is an appropriate strategy for the rehabilitation of degraded areas. However, the establishment and growth of these species in low nutrient soils depends upon several factors, such as the ability of the species to form and benefit from mycorrhizae. In this study, conducted in pots under greenhouse conditions at the Federal University of Lavras in Minas Gerais, Brazil, aspects of host-fungus relationship in tree species found in Southeastern Brazil were evaluated. The following arbuscular mycorrhiza (AM) […]