【摘要】 研究了吡虫啉在土壤中的吸附及作用机理.结果表明,吡虫啉在土壤中的吸附主要归结于土壤有机质对它的结合,其它因素影响较小,Freundlich常数Kf与OM(%)有较好的相关性(r=0993);吡虫啉能与腐殖酸作用发生电荷转移,并能与腐殖酸羟基形成氢键.更多还原

【Abstract】 The adsorption of imidacloprid in soils was investigated.Adsorption was found to be correlated with organic matter in soil and the Freundlich constant Kf=1.69+1.66× [OM](r2 =0 993) .The results of IR analysis showed the formation of hydrogen bonds and the results of ESR suggested the existence of electricity donor acceptor mechanism between imidacloprid and humicacid.更多还原