Factors affecting plant uptake and phytotoxicity of cadmium added to soils

摘要: Smelting and electroplating of metals, motor oils, vehicle tires, fungicide sprays are sources cadmium in the environment. The factors affecting plant uptake phytotoxicity added to soils were investigated. For a set 30 surface soils, addition 50 mg Cd (from CdCl/sub 2/) 500 g soil reduced yield sharply increased levels analyzed portions radish lettuce plants when compared those grown on control soil. treated soil, was significantly related From among 18 potential independent variables, stepwise linear regressions predict found parts harvested from included measure relative ability absorb Cd, acetate-soluble reaction, organic matter as contributing variables. Plant correlated with amounts nickel, iron, zinc, copper same portion. 22 references.