本文通过盆栽试验探讨了铬污染土壤上施用石灰、有机肥的改良效果。试验表明,三价铬(Cr~(3+))污染的酸性土壤施石灰对水稻、小白菜均有明显的解毒增产效果,但水培营养液中加Ca~(2+)对Cr~(3+)的毒性没有表现出抑制作用。施有机肥能降低六价铬(Cr~(6+))的毒性,对Cr~(3+)污染土壤无明显解毒效应。 In this paper, pot experiments were conducted to investigate the effects of applying lime and organic fertilizers on chromium contaminated soils. The results showed that lime soil contaminated by trivalent chromium (Cr 3+) could obviously detoxify and increase the yield of rice and cabbage, but Ca 2+ 3+) showed no inhibitory effect on the toxicity. Application of organic manure can reduce the toxicity of hexavalent chromium (Cr 6+), and has no obvious detoxification effect on Cr 3+ contaminated soil.