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Field mobility of flumetsulam in three Mississippi soils

Published online by Cambridge University Press:  12 June 2017

Glen P. Murphy  and
David R. Shaw
Glen P. Murphy
Affiliation:
Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762
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Abstract

Research was conducted in 1994 and 1995 to evaluate the field mobility of flumetsulam in three soils of varied texture and organic matter content but constant pH (pH = 6.0 ± 0.1). Flumetsulam was monitored to a depth of 122 cm at 28, 56, and 84 days after treatment (DAT). Flumetsulam concentrations were determined by cotton bioassay, with separate standard curves for various soil–depth combinations. Following a preemergence application of flumetsulam at 224 g ai ha−1, the herbicide was primarily limited to the upper 8 cm of soil, regardless of soil type, year, or DAT. Exceptions to this typically occurred following substantial rainfall amounts early in the season. Beyond 28 DAT, no significant concentrations of flumetsulam were detected below 15 cm. Results from this research suggest that leaching is not a significant route of flumetsulam dissipation in the field.

Keywords

Flumetsulam, N-[2,6-difluorophenyl]-5-methyl[1,2,4]triazolo[1,5a] pyrimidine-2-sulfonamidecotton, Gossypium hirsutum L.Bioassaydissipationleachingsoil organic mattertexture
Type
Soil, Air, and Water
Information
Weed Science , Volume 45 , Issue 4 , August 1997 , pp. 564 - 567
Copyright
Copyright © 1997 by the Weed Science Society of America 

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References

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