One of the great challenges in environmental research today is to find tolerant species of plants and microsymbionts to make viable the revegetation of contaminated areas with heavy metals. This experiment was carried out under greenhouse conditions at the Soil Science Department of the Federal University of Lavras (MG), from August to December 1998, to assess the tolerance to heavy metals and the capacity to establish rhizobia symbiosis with Enterolobium contortisiliquum (tamboril), Acacia mangium (acacia) and Sesbania virgata (sesbânia) in […]

The effect of rhizosphere soil addition on ametryn degradation rate was evaluated. The 14CO2 release rate from sterile and non-sterile samples of a sandy soil was compared with the same soil amended with 10% rhizosphere soil from a sugar-cane plantation, treated or not with ametryn. Sterilized soils showed very low 14CO2 release as compared with non-sterilized soil. When mineralization of non-amended soil was compared with rhizosphere soil amended from treated and non-treated fields, 3.5 and 1.7 fold increases of mineralization, […]