Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-28T16:38:42.011Z Has data issue: false hasContentIssue false

Evaluation of Herbicides in No-tillage Production of Burley Tobacco (Nicotiana tabacum)

Published online by Cambridge University Press:  12 June 2017

W.E. Chappell
Affiliation:
Dep. of Plant Pathol. and Physiol., Virginia Polytech. Inst. and State Univ., Blacksburg, VA 24061
L.A. Link
Affiliation:
Dep. of Plant Pathol. and Physiol., Virginia Polytech. Inst. and State Univ., Blacksburg, VA 24061

Abstract

Burley tobacco (Nicotiana tabacum L. ‘Kentucky 14′) was grown as a no-tillage crop in 1974 and 1975 by planting tobacco directly into an existing stand of orchardgrass (Dactylis glomerata L.) or rye (Secale cereale L.). Paraquat (1,1′-dimethyl-4,4′bipyridium ion) and glyphosate [N-(phosphonomethyl)glycine] were used to kill existing vegetation. Benefin (N-butyl-N-ethyl-α,α,α-trifluoro-2,6-dinitro-p-toluidine), oryzalin (3,5-dinitro-N4,N4-dipropylsulfaniiamide), metribuzin [4-amino-6-tert-butyl-3-(methylthio)-as-triazin-5(4H)one], and chlorbromuron [3-(4-bromo-3-chlorophenyl), 1-methoxy-1-methylurea] were used to control annual grasses and broadleaf weeds.

Glyphosate was generally more effective than paraquat in killing existing vegetation. There was some injury to the tobacco associated with the glyphosate and paraquat treatments, but this was generally confined to those plants which came into contact with the treated herbage. Metribuzin caused severe damage to the tobacco and was discontinued after the first year. Chlorbromuron caused little injury if kept on the surface but injured the tobacco if incorporated by cultivation as in conventional tillage. Benefin and oryzalin caused little or no injury to the tobacco. All four herbicides gave adequate control of annual grasses and broadleaf weeds.

Type
Research Article
Copyright
Copyright © 1977 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Hawks, S.N. Jr. and Collins, W.K. 1970. Effects of a herbicide and levels of cultivation on yield and value of flue-cured tobacco. Tob. Sci. 14:170172.Google Scholar
2. Jones, J.N. Jr., Moody, J.E., and Lillard, J.H. 1969. Effects of tillage, no-tillage, and mulch on soil water and plant growth. Agron. J. 61:719721.CrossRefGoogle Scholar
3. Link, L.A. and Terrill, T.R. 1975. Summary of tobacco research in 1973, Southwest Virginia Research Station. VPI & SU Res. Div. SP Info. Note 1.14.Google Scholar
4. Morrison, J.E. Jr., Smiley, J.H., Atkinson, W.O., and Milbocker, D.C. 1973. A no-tillage transplanter. Tob. Sci. 17:4446.Google Scholar
5. Moschler, W.W., Shear, G.M., Rogers, M.J., and Terrill, T.R. 1971. No-tillage tobacco studies in Virginia. Tob. Sci. 15:1214.Google Scholar
6. Zartman, R.E., Philips, R.E., and Atkinson, W.O. 1976. Tillage and nitrogen influence on root densities and yield of burley tobacco. Tob. Sci. 20:136139.Google Scholar