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Clomazone Dissipation in Two Tennessee Soils

Published online by Cambridge University Press:  12 June 2017

K. Bruce Kirksey ,
Robert M. Hayes ,
William A. Krueger ,
Charles A. Mullins  and
Thomas C. Mueller
K. Bruce Kirksey
Affiliation:
Dep. of Plant and Soil Science, Univ. of Tenn., Knoxville, TN 37901-1071
Robert M. Hayes
Affiliation:
Dep. of Plant and Soil Science, Univ. of Tenn., Knoxville, TN 37901-1071
William A. Krueger
Affiliation:
Dep. of Plant and Soil Science, Univ. of Tenn., Knoxville, TN 37901-1071
Charles A. Mullins
Affiliation:
Dep. of Plant and Soil Science, Univ. of Tenn., Knoxville, TN 37901-1071
Thomas C. Mueller*
Affiliation:
Dep. of Plant and Soil Science, Univ. of Tenn., Knoxville, TN 37901-1071
*
*Corresponding author, T. C. Mueller E-mail, [email protected].
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Abstract

Clomazone dissipation in soil was examined in field and laboratory experiments. Field studies suggested a potential for injury to rotational crops such as wheat. Field half-lives were 5 to 29 d (average of 9 field studies was 19 d) for the Etowah clay loam (fine-loamy, siliceous, thermic typic Paleudult) and Lily loam (fine-loamy, siliceous, thermic typic Hapludult) soils. Clomazone had an average half-life of 34 d under lab conditions, indicating slower dissipation in the lab than in the field. Clomazone was moderately adsorbed to soil as indicated by a Kd of about 1, and a Kom of 52 in the two soils.

Keywords

Clomazone, (2-[(2-chlorophenyl) methyl]-4,4-dimethyl-3-isoxazolidinone)snap bean, Phaseolus vulgaris L. variety ‘Blue Ridge.’Persistencerotational cropsHPLC
Type
Soil, Air, and Water
Information
Weed Science , Volume 44 , Issue 4 , December 1996 , pp. 959 - 963
Copyright
Copyright © 1996 by the Weed Science Society of America 

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Footnotes

Current address of senior author is 926 S. Arch St., Aberdeen, SD 57401.

References

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