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Effect of Surfactants on Leaching of Substituted Urea Herbicides in Soil

Published online by Cambridge University Press:  12 June 2017

D. E. Bayer
D. E. Bayer*
Affiliation:
Department of Botany, University of California, Davis, California
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Abstract

The depth of leaching of 3(3,4-dichlorophenyl)-1,1-dimethylurea (diuron) in a Yolo sandy clay loam soil was altered by the various types—anionic, cationic, or nonionic—of surfactants. The effects of surfactants Aliquat 204 and Aliquat 221 on the leaching of 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea (linuron), 3-(p-chlorophenyl)-1,1-dimethylurea (monuron), 1-butyl-3-(3,4-dichlorophenyl)-1-methylurea (neburon), and diuron may reflect a sorption complex of the substituted urea herbicide, surfactant, and the soil. This sorption appears to be closely associated with the dilauryl portion of the surfactant molecule. Other surfactants of the Aliquat series containing lauryl, dioctyl, and distearyl substitutions had little or no effect on this sorption phenomenon.

Type
Research Article
Information
Weeds , Volume 15 , Issue 3 , July 1967 , pp. 249 - 252
Copyright
Copyright © 1967 Weed Science Society of America 

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References

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