Bulletin of Environmental Contamination and Toxicology

, Volume 92, Issue 2, pp 175–182

Effects of Repeated Applications of Chlorimuron-Ethyl on the Soil Microbial Biomass, Activity and Microbial Community in the Greenhouse

Authors

  • Jun Xu
    • State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant ProtectionChinese Academy of Agricultural Sciences
  • Ying Zhang
    • State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant ProtectionChinese Academy of Agricultural Sciences
  • Fengshou Dong
    • State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant ProtectionChinese Academy of Agricultural Sciences
  • Xingang Liu
    • State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant ProtectionChinese Academy of Agricultural Sciences
  • Xiaohu Wu
    • State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant ProtectionChinese Academy of Agricultural Sciences
    • State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant ProtectionChinese Academy of Agricultural Sciences
Article

DOI: 10.1007/s00128-013-1156-7

Cite this article as:
Xu, J., Zhang, Y., Dong, F. et al. Bull Environ Contam Toxicol (2014) 92: 175. doi:10.1007/s00128-013-1156-7

Abstract

The impacts of repeated chlorimuron-ethyl applications on soil microbial community structure and function were studied under greenhouse conditions. Chlorimuron-ethyl was applied to soil samples at three different doses [1-,10-,100-fold of recommended field rate (T1, T10, T100)] for 3 years. The half-lives of chlorimuron-ethyl were 37.1–54.6 days. The soil microbial biomass (microbial biomass carbon and total phospholipid fatty acid), the microbial activity (basal respiration and average well color development), the ratio of Gram-negative/Gram-positive bacteria and Shannon index were stimulated by chlorimuron-ethyl during the initial period. Except for T100, the other treatments recovered to the untreated level. The ratio of fungi/bacteria decreased during the initial period and then recovered in the end. Principal component analysis of phospholipid fatty acid showed that chlorimuron-ethyl altered the microbial community structure. Except got T100, T1 and T10 were not different from the control at the end of experiment. These results suggested a dosage effect of chlorimuron-ethyl on the living microbial biomass and the microbial community.

Keywords

Chlorimuron-ethylRepeated applicationSoil activitySoil microbial community

Copyright information

© Springer Science+Business Media New York 2013