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Weed Control with Non-Selective Herbicides in Soybean (Glycine max) Stale Seedbed Culture

Published online by Cambridge University Press:  12 June 2017

Andrew J. Lanie ,
James L. Griffin ,
P. Roy Vidrine  and
Daniel B. Reynolds
Andrew J. Lanie
Affiliation:
Dep. Plant Pathol. Crop Physiol., 302 Life Sci. Bldg., Baton Rouge, LA 70803
James L. Griffin
Affiliation:
Dep. Plant Pathol. Crop Physiol., 302 Life Sci. Bldg., Baton Rouge, LA 70803
P. Roy Vidrine
Affiliation:
Dean Lee Res. Stn., Alexandria, LA 71302
Daniel B. Reynolds
Affiliation:
Northeast Res. Stn., St. Joseph, LA 71366
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Abstract

Barnyardgrass and morningglory control POST with glufosinate at 840 g a.i./ha 28 d after treatment was 79 to 85% and 83 to 90%, respectively, when no more than 35 d elapsed between initial spring soil tillage and herbicide application. For the same rate of glufosinate, prickly sida and hemp sesbania were controlled 68 and 92%, respectively. Comparable barnyardgrass control was obtained with glufosinate at 560 and 840 g/ha, which was greater than at 420 g/ha. Hemp sesbania control was similar for all rates of glufosinate. In comparison, paraquat at 1050 g a.i./ha controlled 40 to 65% barnyardgrass, 44 to 75% morningglory, 41% prickly sida, and 92% hemp sesbania. With 840 g a.i./ha glyphosate and SC-0224, barnyardgrass, morningglory, prickly sida, and hemp sesbania were controlled 55 to 89%, 55 to 81%, 45 to 61%, and 56 to 68%, respectively. Soybean yield was 5.8, 7.6, 6.0, and 5.9 times greater than the nontreated check for 1050 g/ha paraquat and 840 g/ha glufosinate, glyphosate, and SC-0224, respectively.

Keywords

Glufosinate, 2-amino-4-(hydroxymethylphosphinyl)butanoic acidglyphosate, N-(phosphonomethyl)glycineparaquat, 1,1′-dimethyl-4,4′-bipyridinium ionSC-0224, trimethylsulfonium carboxymethylaminomethylphosphonatebarnyardgrass, Echinochloa crus-galli (L.) Beauv. # ECHCGentireleaf morningglory, Ipomoea hederacea var. integriuscula Gray # IPOHGhemp sesbania, Sesbania exaltata (Raf.) Rydb. ex A. W. Hill # SEBEXpitted morningglory, Ipomoea lacunosa L. # IPOLAprickly sida, Sida spinosa L. # SIDSPsoybean, Glycine max (L.) Merr.Burndown herbicidesreduced tillageglufosinateglyphosateparaquatSC-0224Echinochloa crus-galliIpomoea hederacea var. integriusculaIpomoea lacunosaSesbania exaltataSida spinosaECHCGIPOHGIPOLASEBEXSIDSP
Type
Research
Information
Weed Technology , Volume 8 , Issue 1 , March 1994 , pp. 159 - 164
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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