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Clomazone Dissipation in Two Tennessee Soils

Published online by Cambridge University Press:  12 June 2017

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, TMUELLER@UTK.EDU.

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.

Information

Type
Soil, Air, and Water
Copyright
Copyright © 1996 by the Weed Science Society of America 

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