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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

Literature Cited

1. Börner, H. 1965. Studies on the decomposition of Afalon [N-(3,4-dichlorophenyl)-N'-methoxy-N'-methylurea] and Aresin [N-(4-chlorophenyl)-N'-methoxy-N'-methylurea] in the soil. Z. Pflanzenkr. Pflanzenpathol. Pflanzenschutz. 72:517–531.Google Scholar
2. Dalton, R. L., Evans, A. W., and Rhodes, R. C. 1966. Disappearance of diuron from cotton field soils. Weeds 14:31–33.Google Scholar
3. Geissbühler, H., Haselbach, C. and Aebi, H. 1963. The fate of N'-(4-chlorophenoxy)-phenyl-N,N-dimethylurea in soils and plants. III. Breakdown in soils and plants. Weed Res. 3:277–297.Google Scholar
4. Hill, G. D., McGahen, J. W., Baker, H. M., Finnerty, D. W., and Bingemen, C. W. 1955. The fate of substituted urea herbicides in agricultural soils. Agron. J. 47:93–104.Google Scholar
5. Rogers, R. L. and Funderburk, H. H. Jr. 1968. Physiological aspects of fluometuron in cotton and cucumber. J. Agr. Food Chem. 16:434–440.Google Scholar
6. Sheets, T. J. 1964. Review of disappearance of substituted urea herbicides from soil. J. Agr. Food Chem. 12:30–33.Google Scholar
7. Sheets, T. J. and Crafts, A. S. 1957. The phytotoxicity of four phenylurea herbicides in soil. Weeds 5:93–101.Google Scholar