By pot experiment the paper was to study Cd,Zn,Pb compound effects on rape grown in medium loan meadow cinnamon soil. The results showed that the combination of Cd Zn exhibited synergistic decreasing effect on rape yield, whereas Pb element made the rape yield increase in the experiment. The toxicity sequence of the three elements on rape yield was Zn>Cd>Pb. The accumulation of the three elements in rape was evidently affected by their own doses in soil and their interaction. The interactions of these coex...