Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-03T08:51:53.635Z Has data issue: false hasContentIssue false
  • English
  • Français

Weed Control Systems for Sunflowers

Published online by Cambridge University Press:  12 June 2017

B. J. Johnson
B. J. Johnson*
Affiliation:
Georgia Station, Experiment, Georgia 30212
Get access Rights & Permissions [Opens in a new window]

Abstract

The control of grasses and broadleaf weeds in sunflowers (Helianthus annuus L. ‘Peredovik’) generally was as good with one or two cultivations during the 3-year period as with chemicals applied alone or in sequence with cultivation. Plant injury was not evident from mechanical treatments or from α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine (trifluralin). However, plant injury occurred when plots were treated with 2-chloro-2′6-diethyl-N-(methoxymethyl) acetanilide (alachlor) plus 2,4-bis(isopropylamino)-6-(methylthio)-s-triazine (prometryne) as a preemergence application in 1 year and from postemergence applications of 2-tertiobutyl-4-(2,4-dichloro-5-isopropyloxyphenyl)-5-oxo-1,3,4-oxodiazoline (RP 17623) and 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea (linuron) in 2 years. Seed yields from plots cultivated once were as good as yields from plots that received multiple cultivation or herbicide treatments. Other agronomic characteristics were favorable from plots that received one cultivation.

Type
Research Article
Information
Weed Science , Volume 20 , Issue 3 , May 1972 , pp. 261 - 264
Copyright
Copyright © 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. Armstrong, D. L., Leasure, J. K., and Corbin, M. R. 1968. Economic comparison of mechanical and chemical weed control. Weed Sci. 16:369–371.CrossRefGoogle Scholar
2. Burnside, O. C. and Wicks, G. A. 1964. Cultivation and herbicide treatments of dryland sorghum. Weeds 12:307–310.CrossRefGoogle Scholar
3. Hauser, E. W. and Marchant, W. H. 1969. Response of weeds and soybeans to amiben and naptalam individually and in mixtures with dinoseb. Weed Sci. 17:446–448.CrossRefGoogle Scholar
4. Hauser, E. W., Dowler, C. C., and Marchant, W. H. 1969. Progress report: systems of weed control for soybeans. Proc. So. Weed Sci. Soc. 22:97.Google Scholar
5. Johnson, B. J. 1971. Effect of weed competition on sunflowers. Weed Sci. 19:378–380.CrossRefGoogle Scholar
6. Johnson, B. J. 1971. Response of weeds and soybeans to vernolate and other herbicides. Weed Sci. 19:372–377.CrossRefGoogle Scholar
7. Upchurch, R. P. and Selman, F. L. 1968. Compatibility of chemical and mechanical weed control methods. Weed Sci. 16:121–130.CrossRefGoogle Scholar