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DOI:

Received November 19, 1991,Revised , Accepted , Available online

Volume 4,1992,Pages 19-23

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A study of adsorption of l-(2-chlorobenzoyl)-3-(4-chlorophenyl)urea(ccu)on fourtypes of soil was performed by using the batch slurry method.Freundlich adsorption isotherm equations of CCU in each soil were obtained and the method and the procedure were described in detail.At the same time,Freundlich adsorption coeffacient(Kd)and organic carbon adsorption coefficient(Koc)were given for each soil.The leaching of CCU on different soils was also investigated under laboratory conditions.The results showed that CCU possesses a weak tendency of leaching to the deep layer of soil or contaminating the underground water.

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