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Activated Carbon Reduces Tobacco (Nicotiana tabacum) Injury from Soil-Applied Herbicides

Published online by Cambridge University Press:  12 June 2017

Fred H. Yelverton ,
A. Douglas Worsham  and
Gerald F. Peedin
Fred H. Yelverton
Affiliation:
Dep. Crop Sci., N. C. State Univ., Raleigh, NC 27695-7620
A. Douglas Worsham
Affiliation:
Dep. Crop Sci., N. C. State Univ., Raleigh, NC 27695-7620
Gerald F. Peedin
Affiliation:
Dep. Crop Sci., N. C. State Univ., Raleigh, NC 27695-7620
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Abstract

Five field experiments were conducted during 1987–89 to determine the effectiveness of using activated carbon in transplant water to reduce injury to tobacco from herbicides incorporated before transplanting. Herbicides used were dicamba, chlorimuron, atrazine, lactofen, flumetralin, pendimethalin, pebulate, and imazaquin. Activated carbon was applied in the transplant water at a rate of 9 kg ha–1 in 1987 and 18 kg ha–1 in 1988 and 1989. Measurements taken were visual stunting ratings, yield, grade index, fresh and dry weights of roots and shoots, and percent sugars and total alkaloids in cured leaves. Activated carbon consistently reduced phytotoxicity of imazaquin and chlorimuron. As much as four- and two-fold yield increases were obtained when imazaquin and chlorimuron, respectively, were applied in conjunction with activated carbon. Less consistent results were obtained in reducing the phytotoxic effects of dicamba, atrazine, and flumetralin. Phytotoxicity without activated carbon was not consistently obtained with lactofen, pendimethalin, or pebulate.

Keywords

Atrazine, 6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diaminechlorimuron, 2-[[[[(4-chloro-6-methoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]benzoic aciddicamba, 3,6-dichloro-2-methoxybenzoic acidflumetralin, 2-chloro-N-(2,6,dinitro-4-(trifluoromethyl)phenyl)-N-ethyl-6-fluorobenzenemethanamineimazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acid. lactofen, (±)-2-ethoxy-1-methyl-2-oxoethyl 5-(2-chloro-4-(trifluoromethyl)phenoxy)-2-nitrobenzoatepebulate, S-propyl butylethylcarbamothioatependimethalin, N-(1- ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenaminetobacco, Nicotiana tabacum L. ‘Northrup King K-326’Activated charcoalherbicide safenerherbicide phytotoxicityherbicide antidote
Type
Research
Information
Weed Technology , Volume 6 , Issue 2 , June 1992 , pp. 310 - 316
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

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