title: [Effects of chlorimuron-ethyl on soil microbial community structure in soybean field].
abstract: By using phospholipid fatty acids (PLFA) method, this paper studied the soil microbial community structure in the soybean fields with different chlorimuron-ethyl application history in Weihe district of Heilongjiang Province. In the meantime, the residual amount of chlorimuron-ethyl in soil was determined. There was a very low residual of chlorimuron-ethyl in soil under the conditions of different chlorimuron-ethyl application history. With the increasing year of chlorimuron-ethyl application, the total concentration of soil microbial PLFA and the ratios of fungi/bacteria and Gram negative/Gram positive bacteria decreased, and the microbial stress level increased. Principal component analysis (PCA) showed that long-term application of chlorimuron-ethyl into soybean field changed the soil microbial community structure significantly.
authors.affiliation: College of Agriculture, Northeast Agricultural University, Haerbin 150030, China. shengyu326@163.com
authors.forename: Yu
authors.initials: Y
authors.lastname: Sheng
authors.forename: Jun
authors.initials: J
authors.lastname: Xu
authors.forename: Xin-gang
authors.initials: XG
authors.lastname: Liu
authors.forename: Feng-shou
authors.initials: FS
authors.lastname: Dong
authors.forename: Chang-peng
authors.initials: CP
authors.lastname: Zhang
authors.forename: Cai-hong
authors.initials: CH
authors.lastname: Lu
authors.forename: Yong-quan
authors.initials: YQ
authors.lastname: Zheng
mesh_terms: D001419:Bacteria / Q000187:drug effects / Q000254:growth & development; D002681:China; D017753:Ecosystem; D004784:Environmental Monitoring; D005658:Fungi / Q000187:drug effects / Q000254:growth & development; D006540:Herbicides / Q000032:analysis / Q000494:pharmacology; D011157:Population Dynamics; D025341:Principal Component Analysis; D011743:Pyrimidines / Q000032:analysis / Q000494:pharmacology*; D012988:Soil Microbiology; D013025:Glycine max / Q000254:growth & development*; D013453:Sulfonylurea Compounds / Q000032:analysis / Q000494:pharmacology*
chemical_list: D006540:Herbicides; D011743:Pyrimidines; D013453:Sulfonylurea Compounds; C112343:chlorimuron ethyl