The mobilization of wheat and rice root exudates on cadmium sulfide CdS,in rice rhizosphere and their effects on Cd uptake and transport by rice in vermiculite and nutrient solution were investigated.

• 采用人工控制光温条件的蛭石 -营养液相结合的培养方法 ,对根分泌物活化难溶性硫化镉以及对水稻吸收、运输镉的影响进行了研究。