中文摘要：

以山西某污灌区为供试区,研究了种植不同品种玉米和高粱对土壤脲酶、蔗糖酶、磷酸酶活性的影响。结果表明,玉米永玉3号、平安18、辽单565和高粱晋杂23、杨安911对土壤脲酶、蔗糖酶、磷酸酶活性均有明显促进作用,且籽粒产量相对较高,籽粒中重金属（铜、铬、铅）质量分数均未超过国家食品卫生标准,可在当地作为首选食用作物持续种植;玉米强盛49、先玉335和高粱晋杂18、晋杂22、晋杂103对土壤脲酶、蔗糖酶、磷酸酶活性均有一定促进作用,但晋杂103籽粒中铅质量分数、其余4种作物籽粒中铬质量分数均超过了国家食品卫生标准,可以推荐作为饲料或工业原料利用。

英文摘要：

Taking a corrupt irrigation soil of Shanxi province as the tested soil,effects of different varieties of corn and sorghum on soil urease,invertase,phosphatase activity were studied.The results showed that Yongyu3,Pingan18,Liaodan565 corn and Jinza23,Yangan911 sorghum significantly promoted the activities of soil urease,invertase,phosphatase,their yields were relatively higher than other varieties of crops,and grain heavy metals（copper,chromium,lead）contents did not exceed the national food hygiene standards,showing that these crops could be used as an edible crop in the ground.Qiangsheng49,Xianyu335 corn and Jinza18,Jinza22,Jinza103 sorghum had some promotions on soil urease,invertase and phosphatase activities,but Jinza103 sorghum grain lead content as well as the other four grain chromium contents exceeded the national food hygiene standards,but they could be used as animal feed or industrial raw materials.