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Grass Weed Control for Soybean (Glycine max) on Clay Soil

Published online by Cambridge University Press:  12 June 2017

Larry G. Heatherly and
C. Dennis Elmore
Larry G. Heatherly
Affiliation:
USDA-ARS Soybean Prod. Res. Unit, P.O. Box 343, Stoneville, MS
C. Dennis Elmore
Affiliation:
USDA-ARS Field Crops Mech. Unit, P.O. Box 225, Stoneville, MS
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Abstract

Field studies were conducted for four consecutive years to determine if repeated applications of trifluralin (preplant incorporated), metolachlor (preemergence), and fluazifop (postemergence) herbicides alone or combined could be utilized in soybean to effectively control grass weed populations and maintain optimum yield in an irrigated environment where metribuzin plus dinoseb (preemergence) and 2,4-DB plus linuron (postemergence) were used as a standard weed control system. After repeated applications each year, all treatments maintained similar yields that were no different from yields obtained from the standard system. Grass weed infestation did not increase significantly in the treatment that received only the standard weed control herbicides over the duration of the study.

Keywords

Dinoseb, 2-(1-methylpropyl)-4,6-dinitrophenolfluazifop, (±)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]-oxy]phenoxy]propanoic acidlinuron, N′-(3,4-dichlorophenyl)-N-methoxy-N-methylureametolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamidemetribuzin, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-onetrifluralin, 2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl)benzenamine2,4-DB, 4-(2,4-dichlorophenoxy)butanoic acidsoybean, Glycine max (L.) Merr.Crop heightsoybean yieldundisturbed seedbedweed coverdinosebfluazifoplinuronmetolachlormetribuzintrifluralin2,4-DBBrachiaria ramosaEchinochloa crus-galliLeptochloa filiformisSorghum halepenseECHCGLEFFIPANRASORHA

Information

Type
Research
Information
Weed Technology , Volume 5 , Issue 1 , March 1991, pp. 103 - 107
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

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