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Microbial Degradation of Flurtamone in Three Georgia Soils

Published online by Cambridge University Press:  12 June 2017

Thomas C. Mueller ,
Philip A. Banks  and
William C. Steen
Thomas C. Mueller
Affiliation:
Univ. Georgia, Athens, GA 30602
Philip A. Banks
Affiliation:
Univ. Georgia, Athens, GA 30602
William C. Steen
Affiliation:
USEPA, Athens, GA 30613
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Abstract

Degradation of flurtamone in a Greenville sandy clay loam, a Cecil loam, and a Dothan loamy sand with 0, 1, or 2 yr of previous flurtamone field use was evaluated under controlled conditions. Soil sterilization by autoclaving significantly reduced flurtamone dissipation rate in all soils. Enhanced degradation of flurtamone was observed in a Greenville sandy clay loam after 1 yr of previous flurtamone field use and in a Cecil loam after 2 yr of previous flurtamone field use. No enhancement of flurtamone degradation was observed in a Dothan loamy sand. Flurtamone degradation kinetics in these studies was described as a first-order process. Microbial populations in each soil showed no major changes in total bacterial numbers due to preexposure to flurtamone in the field.

Keywords

Flurtamone, 5-(methylamino)-2-phenyl-4-[3-(trifluoromethyl)phenyl]-3-(2H)-furanoneRE-40885persistenceenhanced degradationdissipationsoil type
Type
Soil, Air, and Water
Information
Weed Science , Volume 39 , Issue 2 , June 1991 , pp. 270 - 274
Copyright
Copyright © 1991 Weed Science Society of America 

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