Lowering the Toxicity of Cd to Using Soil Amendments Based on Commercial Charcoal and Lime.

Carbonaceous and calcareous materials are commonly used as amendments to decrease the Cd mobility in contaminated soils. This study evaluated the effect of amendments applied to cocoa seedlings in the greenhouse, considering the mobilization of soil cadmium toward the seedlings as the main response. The experimental conditions considered soil artificially contaminated with Cd at a concentration of 50 mg Cd kg and applications of amendments in different treatments with the presence of charcoal dust and calcium carbonate.