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Degradation of Fluometuron in Sandy Loam Soil

Published online by Cambridge University Press:  12 June 2017

G. A. Bozarth  and
H. H. Funderburk Jr.
G. A. Bozarth
Affiliation:
Auburn Univ., Auburn, Alabama Dep. of Plant Pathol., Univ. of Mo., Columbia, Missouri 65201
H. H. Funderburk Jr.
Affiliation:
Auburn Univ., Auburn, Alabama Auburn Univ. at Montgomery, Montgomery, Alabama 36104
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Abstract

Degradation of 1,1-dimethyl-3-(a,a,a-trifluoro-m-tolyl) urea (fluometuron) in a sandy loam soil was investigated in time-course and 14CO2 evolution studies. Degradation occurred only in nonautoclaved samples and was more rapid in glucose-amended soil, indicating that it is a function of microbial metabolism. Time-course studies showed that the pathway of degradation of fluometuron in soil is similar to that previously reported for other substituted ureas, involving a two-step demethylation, probably followed by hydrolysis of the urea linkage to form the aniline derivative. Further evidence for degradation was a small but significant recovery of 14CO2 from soil treated with fluometuron labeled in the trifluoromethyl group.

Type
Research Article
Information
Weed Science , Volume 19 , Issue 6 , November 1971 , pp. 691 - 695
Copyright
Copyright © Weed Science Society of America 

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References

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