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Rotational Crop Response to Chlorimuron, Clomazone, and Imazaquin Applied the Previous Year

Published online by Cambridge University Press:  12 June 2017

C. Dale Monks  and
Philip A. Banks
C. Dale Monks
Affiliation:
Agron. Dep., Univ. Georgia, Athens, GA 30602
Philip A. Banks
Affiliation:
Agron. Dep., Univ. Georgia, Athens, GA 30602
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Abstract

Experiments to determine effects of chlorimuron, clomazone, and imazaquin applied the year before planting corn, cotton, and sorghum were conducted at three locations in Georgia. Corn injury was <20% in 1987 and 1988 and yield was not affected. In 1988, imazaquin applied at a high rate or sequentially the previous year to late-planted soybeans injured corn more than applications to the early-planted soybeans. Cotton was the most sensitive crop to herbicides applied the previous year. However, seed cotton yield was not decreased due to herbicides applied the previous year. Sorghum growth and yield 8 weeks after planting was not affected by soybean herbicide application the previous year. Sicklepod, corn, and wheat bioassays did not detect any of the herbicides in soil samples obtained the season after treatment. Bioassays accurately predicted potential injury in corn and sorghum but not cotton.

Keywords

Chlorimuron, 2-[[[[(4-chloro-6-methoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]benzoic acidclomazone, 2–[(2–chlorophenyl)methyl]–4,4–dimethyl-3-isoxazolidinoneimazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1 H-imadazol-2-yl]-3-quinolinecarboxylic acidcorn, Zea mays L. ‘Pioneer 3320′, ‘Pioneer 3147′, ‘Pioneer 3369A′cotton, Gossypium hirsutum L. ‘Deltapine 90′sorghum, Sorghum bicolor (L.) Moench ‘Pioneer 8333′soybean, Glycine max (L.) Merr. ‘Braxton′, ‘Coker 237′, ‘Gordon’ and ‘Ransom′wheat, Triticum aestivum L. ‘Florida 302′sicklepod, Cassia obtusifolia L. # CASOBBioassaycrop rotationdissipation
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 39 , Issue 4 , December 1991 , pp. 629 - 633
Copyright
Copyright © 1992 by the Weed Science Society of America 

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References

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