山东科学2018，Vol.31Issue(2)：25-31,7.DOI:10.3976/j.issn.1002-4026.2018.02.005
玉米秸秆还田及腐熟剂对小麦产量、土壤微生物数量和酶活性的影响
Effects of maize straw incorporation and decomposing inoculants on wheat yield, soil microbial biomass and enzyme activities
摘要
Abstract
The effects of maize straw incorporation and decomposition inoculants on soil physical and chemical properties,microbial biomass,enzyme activity and wheat yield were studied by field experiment.Results showed that,compared with the treatment that without straw incorporation (CK),straw incorporation (T1) and straw incorporation with decomposition inoculants (T2) significantly decreased soil bulk density,increased the number of soil bacteria and actinomycetes,and the activities of some rhizosphere soil enzyme,such as soil urease,neutral phosphatase and invertase,and further increased the content of soil available nutrients and organic matter,and the final wheat yields significantly increased by 10.33％ and 13.46％,respectively.In addition,compared with CK,T2 decreased the number of fungi,and increased soil catalase and dehydrogenase activity in rhizosphere soil,but the differences in T1 treatment were not obvious.In summary,straw return could regulate soil enzyme activity and nutrient content by improving microbial community biomass and diversity,thus optimizing rhizosphere environment and promoting wheat growth.Among them,the treatment effect of straw incorporation with decomposition inoculants was better than only straw incorporation treatment,which could be popularized and applied in maize planting area of the north of China.关键词
秸秆还田/腐熟剂/土壤微生物/土壤酶活性Key words
straw returning/decomposing inoculants/soil microorganism/soil enzyme activities分类
农业科技引用本文复制引用
陈士更,宋以玲,于建,肖承泽,李玉环,丁方军,张民..玉米秸秆还田及腐熟剂对小麦产量、土壤微生物数量和酶活性的影响[J].山东科学,2018,31(2):25-31,7.基金项目
泰山产业领军人才工程(LJNY201612) （LJNY201612）
山东省重点研发计划(2015GNC110025) （2015GNC110025）
