Adsorption and leaching behavior of seven pesticides in three different soils

To study the influence of pesticide character,soil basic physical and chemical properties on the adsorption and leaching behavior of pesticide in soil,the adsorption and leaching of seven pesticides onto three different soils including Northeast China black soil,Taihu paddy soil,Jiangxi red soil were conducted by oscillation equilibrium experiment and column leaching.The results showed the greater of the pesticide water-soluble,the weaker adsorption and stronger leaching.The values of Kf were well correlated to certain physical-chemical properties of the soils such as organic matter contents,cation exchange capacity and pH.Properties of the soils including organic matter contents,pH and physico-chemical properties of pesticides may affect the leaching migration of pesticides in soil.