Journal of Integrative Agriculture ›› 2014, Vol. 13 ›› Issue (11): 2471-2478.DOI: 10.1016/S2095-3119(13)60685-1

• 论文 • 上一篇    下一篇

Dissipation and Adsorption Behavior of the Insecticide Ethiprole on Various Cultivated Soils in China

 LIU Xin-gang, DONG Feng-shou, XU Jun, YUAN Shan-kui , ZHENG Yong-quan   

  1. 1、Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture/Institute of Plant Protection, Chinese Academy of
    Agricultural Sciences, Beijing 100193, P.R.China
    2、Institute for the Control of Agrochemicals, Ministry of Agriculture, Beijing 100125, P.R.China
  • 收稿日期:2013-07-04 出版日期:2014-11-06 发布日期:2014-11-14
  • 通讯作者: ZHENG Yong-quan, Tel: +86-10-62815908, E-mail: zhengyongquan@ippcaas.cn
  • 作者简介:LIU Xin-gang, Tel: +86-10-62815938, E-mail: xgliu@ippcaas.cn
  • 基金资助:

    This work was supported by the National Natural Science Foundation of China (31272070).

Dissipation and Adsorption Behavior of the Insecticide Ethiprole on Various Cultivated Soils in China

 LIU Xin-gang, DONG Feng-shou, XU Jun, YUAN Shan-kui , ZHENG Yong-quan   

  1. 1、Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture/Institute of Plant Protection, Chinese Academy of
    Agricultural Sciences, Beijing 100193, P.R.China
    2、Institute for the Control of Agrochemicals, Ministry of Agriculture, Beijing 100125, P.R.China
  • Received:2013-07-04 Online:2014-11-06 Published:2014-11-14
  • Contact: ZHENG Yong-quan, Tel: +86-10-62815908, E-mail: zhengyongquan@ippcaas.cn
  • About author:LIU Xin-gang, Tel: +86-10-62815938, E-mail: xgliu@ippcaas.cn
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (31272070).

摘要: In this study, the hydrolysis of the insecticide ethiprole in buffered solutions at pH 4.0, 7.0 and 9.0, respectively, and the degradation and adsorption-desorption behaviors of ethiprole in five agricultural soil samples from China were investigated. The half-lives under anaerobic conditions were faster than that in the aerobic experiment. Ethiprole was relatively stable under both acidic and neutral conditions while it was readily hydrolyzed under alkaling condition. The sorption of ethiprole on five soils was well described by the linear and Freundlich equation and mainly governed by soil organic matter. The exothermic process of ethiprole adsorption can also be well explained by physical adsorption. A weak adsorption capacity was observed in all soils, which could readily lead to leaching problems.

关键词: ethiprole , adsorption , desorption , hydrolysis , soil dissipatio

Abstract: In this study, the hydrolysis of the insecticide ethiprole in buffered solutions at pH 4.0, 7.0 and 9.0, respectively, and the degradation and adsorption-desorption behaviors of ethiprole in five agricultural soil samples from China were investigated. The half-lives under anaerobic conditions were faster than that in the aerobic experiment. Ethiprole was relatively stable under both acidic and neutral conditions while it was readily hydrolyzed under alkaling condition. The sorption of ethiprole on five soils was well described by the linear and Freundlich equation and mainly governed by soil organic matter. The exothermic process of ethiprole adsorption can also be well explained by physical adsorption. A weak adsorption capacity was observed in all soils, which could readily lead to leaching problems.

Key words: ethiprole , adsorption , desorption , hydrolysis , soil dissipatio