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Persistence and Movement of Perfluidone in Soil

Published online by Cambridge University Press:  12 June 2017

M. L. Ketchersid  and
M. G. Merkle
M. L. Ketchersid
Affiliation:
Dep. of Soil and Crop Sci., Texas A&M Univ., College Station, TX 77843
M. G. Merkle
Affiliation:
Dep. of Soil and Crop Sci., Texas A&M Univ., College Station, TX 77843
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Abstract

Perfluidone (1,1,1-trifluoro-N-[2-methyl-4-(phenylsulfonyl)phenyl]-methanesulfonamide) was chemically stable for 2 to 3 weeks on the surface of three Texas soils either air dry or at field capacity and at temperatures of 22 and 46 C. Perfluidone was susceptible to photodecomposition when applied to glass petri dishes and exposed to ultraviolet irradiation. Perfluidone was readily leached through neutral or slightly alkaline soils, with a tendency toward greater downward movement in soils having low clay and organic matter content. However, leaching was less in an acid loamy sand than in either neutral loamy sand or clay soils.

Type
Research Article
Information
Weed Science , Volume 23 , Issue 5 , September 1975 , pp. 344 - 348
Copyright
Copyright © 1975 by the Weed Science Society of America 

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