Effects of biochar-based amendments on enzyme activity, microbial biomass, and bacterial communities in mildly cadmium-contaminated paddy soils
Mild cadmium (Cd) contamination seriously restricts the safe utilization of paddy soils in southern China. Biochar materials can immobilize soil Cd, yet a single biochar often exhibits limited comprehensive improvement effects. At present, field studies systematically revealing how composite biochar amendments regulate...