为研究施用根瘤菌对大豆不同生育时期土壤酶活性及产量的影响,于大豆苗期、盛花期、鼓粒期及成熟期对大豆根际土壤过氧化氢酶、脲酶、蔗糖酶活性进行测定,并于大豆成熟期对大豆产量及相关性状进行测定。结果表明:随着大豆生育期进程的推进,3种酶的活性均先升高后降低;与对照相比,施用根瘤菌及促菌剂施用在大豆各生育时期均增加了3种酶的活性;根瘤菌处理有效增加了大豆产量,与对照相比增产30.23%;根瘤菌+促菌剂处理,与对照相比增产11.08%。 In order to study the effect of rhizobia on soil enzyme activities and yield at different growth stages of soybean, the activities of catalase, urease and invertase in soybean rhizosphere soils were measured at seedling stage, full bloom stage, drum stage and mature stage, Soybean yield and related traits were measured at maturity of soybean. The results showed that with the progress of soybean growth stage, the activities of three kinds of enzymes increased firstly and then decreased. Compared with the control, the activity of three kinds of enzymes increased during the growth stages of soybean compared with the control Rhizobia treatment increased the yield of soybean effectively, increased by 30.23% compared with the control; Rhizobium + rhizobium increased by 11.08% compared with the control.