The use of pig slurry in no-tillage systems is relatively recent in South Brazil, so it is important to evaluate the decomposition of pig slurry as well as its effects on the cover crop residue decomposition in this system. The objective of this study was to evaluate the pig slurry decomposition and its influence on the decomposition rate of black oat straw in a soil under no-tillage. Two experiments were carried out under field conditions in an experimental area of […]

The rhizospheric microbial action, accelerating the degradation of compounds in the soil, is known as phytostimulation. It represents one of the main phytoremediation mechanisms in herbicide-contaminated soil. Tebuthiuron-tolerant plants, which are able to stimulate their rhizospheric microorganisms, could be highly interesting for the phytoremediation of this herbicide. This study aimed at evaluating the rhizospheric activity of four plant species with phytoremediation potential for tebuthiuron and to infer on the contribution of the roots to the process of decontamination of this […]

The fumigation-extraction method was used for measuring soil microbial biomass of C (BM-C) and N (BM-N) in a red-yellow latosol under different forest types. Soil samples from eucalypt and pine plantations presented higher values of BM-C (223.72 and 207.39 mg kg-1 of C in the soil, respectively) than samples from Piptadenia rigida and regenerating secondary forest (82.94 and 79.47 mg kg-1 of C in the soil, respectively). Similar results were obtained for the litter layer. On the other hand, the […]