通过大田试验,采用不同改良剂(石灰、有机肥、双氰胺)在氮镉交互作用下对不同蔬菜种植下土壤酶活性的影响进行研究。结果表明:综合考虑4种不同的酶活性(蔗糖酶、脲酶、蛋白酶、酸性磷酸酶)在3种改良剂作用下的不同影响,在氮镉交互作用下优先施用改良剂的先后顺序为双氰胺、石灰、有机肥。 Through field experiments, the effects of different amendments (lime, organic fertilizer, dicyandiamide) on soil enzyme activities under different nitrogen and nitrogen interactions were studied under the interaction of nitrogen and cadmium. The results showed that considering the different effects of four different enzyme activities (sucrase, urease, protease and acid phosphatase) under the action of three modifiers, the order of preferential application of modifiers under the interaction of nitrogen and cadmium was dicyan Amine, lime, organic fertilizer.