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Effects of Adjuvants on Behavior of Metribuzin in Soil and Soybean Injury

Published online by Cambridge University Press:  12 June 2017

Joe E. Street ,
Glenn Wehtje ,
Robert H. Walker  and
Michael G. Patterson
Joe E. Street
Affiliation:
Miss. Agric. and For. Exp. Stn., Delta Branch, Box 197, Stoneville, MS 38776
Glenn Wehtje
Affiliation:
Dep. Agron. and Soils, Alabama Agric. Exp. Stn., Auburn Univ., AL 36849
Robert H. Walker
Affiliation:
Dep. Agron. and Soils, Alabama Agric. Exp. Stn., Auburn Univ., AL 36849
Michael G. Patterson
Affiliation:
Dep. Agron. and Soils, Alabama Agric. Exp. Stn., Auburn Univ., AL 36849
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Abstract

Three adjuvants, ARD 54, ARD 93, and ARD 1836, were evaluated for their ability to reduce metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one] phytotoxicity to soybeans [Glycine max (L.) Merr.] in sandy soils. A reduction in metribuzin phytotoxicity was observed, usually without reductions in sicklepod (Cassia obtusifolia L. # CASOB) control. The addition of linseed oil to a spray suspension containing 1% ARD 1836 reduced sicklepod control slightly at one of two locations. The addition of these adjuvants and linseed oil to the spray solution had no effect on soybean yield. These adjuvants slightly reduced movement of metribuzin in thin-layer soil chromatography but had no influence on sorption in batch-equilibrium experiments.

Keywords

CASOBherbicide soil behaviorlinseed oilARD 54ARD 93ARD 1863
Type
Soil, Air, and Water
Information
Weed Science , Volume 35 , Issue 3 , May 1987 , pp. 422 - 426
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

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