Treating Agricultural Soils Contaminated with Cadmium and Copper Using Plant Species

This field study was conducted on four types of plants, namely sun flower Helianthus pumilus L., turnip, Brassica rapa L. carrots Daucus caro L. and Indian mustard Brassica juncea L, to find out the ability of these plants on resisting the toxicity of heavy elements from agricultural soils. The results of the concentration elements of cadmium and copper for the root system showed that the highest value of cadmium was 0.466 mg. Kg^-1 in the mustard plant treated without fertilization, whereas that for copper was 19.750 mg. Kg^-1 observed in the turnip. As for the bioconcentration factor, the results for the cadmium and copper components were recorded. The highest mean values for the bioaccumulation factor were 0.242 ± 0.02 in the Indian mustard and 0.908 ± 0.028 in the turnip