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Effects of Metolachlor Residues on Rice (Oryza sativa)

Published online by Cambridge University Press:  12 June 2017

Michael P. Braverman ,
Terry L. Lavy  and
Ronald E. Talbert
Michael P. Braverman
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR 72701
Terry L. Lavy
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR 72701
Ronald E. Talbert
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR 72701
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Abstract

Field studies were conducted on a Taloka silt loam (Mollic Albaqualf) to determine the effects of residual levels of metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] on rice (Oryza sativa L.). Yield reductions could be overcome by increasing rice seeding rate, by decreasing seeding depth, or by applying the safeners CGA-43089 [α-(cyanomethoxyimino)-benzacetonitrile] or CGA-92194 [α-(1,3-dioxolan-2-yl-methoximino)-benzacetonitrile] to the rice seed. Greenhouse studies with the safeners and reduced seeding depths indicated that CGA-92194 was better than CGA-43089 for protecting rice from metolachlor injury, but reduced seeding depths did not reduce metolachlor injury.

Keywords

CGA-43089CGA-92194herbicide injuryseeding depthseeding ratecrop rotationseed protectant
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 33 , Issue 6 , November 1985 , pp. 819 - 824
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

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