With the increasing of Pb2+ concentration in soil from 0.5 mg/kg to 100.0 mg/kg combined with 0.5 mg/kg of Cd2+ , the soil urease activity decreased and varied as the incubation proceeded.
With the increasing of Pb2+ concentration in soil from 0.5 mg/kg to 100.0 mg/kg combinedwith 0.5 mg/kg of Cd2+, the soil urease activity decreased and varied as the incubation proceeded.