放线菌制剂对大棚黄瓜土壤微生物区系及酶活性的影响  

Effect of Actinomycetes on Soil Microflora and Enzyme Activities in Cucumber Greenhouse

作　　者：郭晓冬[1] 谭雪莲[2,3] GUO Xiaodong;TAN Xuelian(Institute of Soil,Fertilizer and Water-saving Agriculture,Gansu Academy of Agricultural Sciences,Lanzhou Gansu 730070,China;Institute of Dryland Agriculture-Gansu Academy of Agricultural Sciences-Lanzhou Gansu 730070,China;Key Laboratory of Efficient Utilization of Water in Dry Farming,Lanzhou Gansu 730070,China)

机构地区：[1]甘肃省农业科学院土壤肥料与节水农业研究所,甘肃兰州730070 [2]甘肃省农业科学院旱地农业研究所,甘肃兰州730070 [3]甘肃省水资源高效利用重点实验室,甘肃兰州730070

出　　处：《甘肃农业科技》2020年第1期1-8,共8页Gansu Agricultural Science and Technology

基　　金：甘肃省农业科学院科技支撑计划(2017GAAS41);甘肃省农业科学院“土壤培肥及退化修复”科技创新团队(2015GAAS03);甘肃省农业科学院科技创新专项计划(2017GAAS28)资助;公益性行业(农业)科研专项(201503120)

摘　　要：以武山县塑料大棚黄瓜连作10 a的土壤为对象,研究了放线菌制剂对大棚黄瓜土壤微生物群落结构和酶活性的影响。结果表明,除结果期外,与不施放线菌处理相比,穴施2 g放线菌制剂时,硝化细菌、亚硝化细菌、纤维素厌氧分解菌数量显著升高,土壤真菌数量则呈下降趋势,在拉秧期降低了48.86%;穴施4 g放线菌制剂的土壤蔗糖酶活性显著升高。说明放线菌制剂对大棚黄瓜连作土壤的微生态环境有明显的改善效果。The test took the soil which had grew cucumber for ten years as materials in Wushan County greenhouse,the effects of actinomycetes on microbial community structure and enzyme activity in greenhouse cucumber soil were studied. The results showed that compared with the non-actinomycetes treatment, in addition to the fruit stage, the number of nitrifying bacteria, nitrite bacteria and cellulose anaerobic decomposing bacteria increased significantly when 2 g actinomycetes were applied to the hole,while the number of soil fungi showed a decreasing trend,which decreased by 48.86% at the seedling rearing stage;the soil sucrase activity of 4 g actinomycetes was significantly increased. The results showed that actinomycetes could improve the microecological environment of cucumber continuous cropping soil.

关 键 词：黄瓜 连作 放线菌制剂 土壤微生物 土壤酶活性 

分 类 号：S642.2[农业科学—蔬菜学] S154.3[农业科学—园艺学]