首页|Dissipation and Adsorption Behavior of the Insecticide Ethiprole on Various Cultivated Soils in China
Dissipation and Adsorption Behavior of the Insecticide Ethiprole on Various Cultivated Soils in China
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国家科技期刊平台
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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 ifve 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 ifve 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.
LIU Xin-gang、DONG Feng-shou、XU Jun、YUAN Shan-kui、ZHENG Yong-quan
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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
Institute for the Control of Agrochemicals, Ministry of Agriculture, Beijing 100125, P.R.China
This work was supported by the National Natural Science Foundation of China
国家科技期刊平台
NSTL
万方数据
维普
