Uso de resíduos orgânicos na atenuação de contaminação por cobre de calda bordalesa

Abstract

Bordeaux mixture, commonly used in organic production systems, can increase copper (Cu) levels in the soil. The objective of this work was to evaluate the potential of materials rich in organic compounds in the attenuation of Cu contamination in a clayey soil. Coconut fiber (FC), bokashi (BO) and leonardite (LE) were tested in three doses. The tests were mounted on a bench in PVC tubes with material of a Red Clay Latosol, which received three doses of Cu as a Bordeaux mixture. Regular percolate samplings