潮土中锌对油菜吸收镉的影响

Effects of Zinc Supply on Uptake of Cadmium by Rape

通过油菜盆栽试验研究了锌、镉吸收的相互作用。结果表明，镉能加重锌对油菜的毒害症状，同时发现，当土壤加锌量小于25mg·kg-1时，锌的投入促进了油菜对镉的吸收，锌对镉吸收具有协同作用；但当土壤加锌量超过25mg·kg－1时，投入锌却抑制了油菜对镉的吸收，此时锌对镉的吸收则有拮抗作用。

Pot experiments were conducted to study the effects of Zinc at different levels on the uptake of Cd by rape grown on a meadow cinnamon soil. The results indicated that In the case of that Zinc was applied at levels lower than 25 mg·kg-1, Cd content in rape increased. The seraet showed that there was a synergism between Cd and Zn. In the treatments where Zinc was applied at levels higher than 25 mg·kg-1, Cd uptake by rape reduced, it was showed that there was an untogonism between Cd nad Zn at this metal concentration ratio.