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Established Foxtail Barley, Hordeum jubatum, Control with Glyphosate Plus Ammonium Sulfate

Published online by Cambridge University Press:  12 June 2017

William W. Donald
William W. Donald*
Affiliation:
USDA, Metab. Radiat. Res. Lab. and Dep. Agron., N. D. State Univ., Fargo, ND 58105
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Abstract

The spread of perennial weeds, such as foxtail barley, is a prime deterrent to adoption of no-till cereal production in the Northern Great Plains. In a 3-yr study, the isopropylamine salt of glyphosate at 0.56 kg ai/ha plus nonionic surfactant at 0.25% (v/v) did not control established perennial foxtail barley in early spring. However, adding ammonium sulfate at 2.8 kg/ha to glyphosate plus surfactant improved the effectiveness and year-to-year consistency of glyphosate for killing this weed. This spring treatment fits into no-till farm practice in the Northern Great Plains, providing no-till farmers with a defined strategy to manage this perennial bunch-grass weed.

Keywords

Glyphosate, N-(phosphonomethyl)glycinefoxtail barley, Hordeum jubatum L. #5 HORJUHerbicideadditivesadjuvantsperennial grass weedHORJU

Information

Type
Research
Information
Weed Technology , Volume 2 , Issue 3 , July 1988, pp. 364 - 368
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

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