Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-20T01:43:57.426Z Has data issue: false hasContentIssue false
  • English
  • Français

Cultural and Chemical Weed Control Systems in Soybeans (Glycine max)

Published online by Cambridge University Press:  12 June 2017

M. R. Gebhardt
M. R. Gebhardt*
Affiliation:
U.S. Dep. Agric., Sci. Ed. Admin., Agric. Res., 102 Bldg. T-12, Columbia, MO 65211
Get access Rights & Permissions [Opens in a new window]

Abstract

Combinations of herbicides applied preemergence and postemergence, with and without cultivation, were evaluated for their effectiveness for controlling weeds in soybeans [Glycine max (L.) Merr. ‘Williams’]. Annual weeds were controlled best when a sequential treatment of a mixture of alachlor [2-chloro-2′,6′-diethyl-N-(methoxymethyl)acetanilide] + linuron [3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea] was applied preemergence, and glyphosate [N-(phosphonomethyl)glycine] was applied postemergence, followed by one cultivation. The largest soybean yields were obtained when alachlor + linuron applied preemergence was followed by a cultivation, bentazon [3-isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide] applied postemergence, bentazon applied postemergence and a cultivation, or glyphosate applied postemergence and a cultivation. Regression analysis of the soybean yield vs. weed control data for all treatments indicated that soybean yields were suppressed an average of 180 kg/ha when glyphosate was applied postemergence. A cultivation in addition to the preemergence and postemergence treatments improved both weed control and soybean yield.

Keywords

Post-directedherbicide combinationscultural practicesweed control systems
Type
Research Article
Information
Weed Science , Volume 29 , Issue 1 , January 1981 , pp. 133 - 138
Copyright
Copyright © 1981 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. 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. 1978. Mechanical, cultural, and chemical control of weeds in a sorghum-soybean (Sorghum bicolor–Glycine max) rotation. Weed Sci. 26:362–369.Google Scholar
3. Dowler, C. C. and Parker, M. B. 1975. Soybean weed control systems in two southern coastal plain soils. Weed Sci. 23:198–202.CrossRefGoogle Scholar
4. Hauser, E. W., Cecil, S. R., and Dowler, C. C. 1973. Systems of weed control for peanuts. Weed Sci. 21:176–180.CrossRefGoogle Scholar
5. Hauser, E. W., Jellum, M. D., Dowler, C. C., and Marchant, W. H. 1972. Systems of weed control for soybeans in the coastal plain. Weed Sci. 20:592–598.CrossRefGoogle Scholar
6. Johnson, B. J. 1971. Effects of repeated applications of herbicides on soybeans. Weed Sci. 19:548–550.Google Scholar
7. Johnson, B. J. 1971. Effect of herbicide combinations on weeds and soybeans. Weed Sci. 19:740–742.CrossRefGoogle Scholar
8. Johnson, B. J. 1972. Weed control systems for sunflowers. Weed Sci. 20:261–264.Google Scholar
9. Miller, G. R. 1974. Well planned program necessary for soybean weed control. Weeds Today 5(2):6–7.Google Scholar
10. Peters, E. J., Davis, E. S., Klingman, D. L., and Larson, R. E. 1961. Interrelations of cultivations, herbicides, and methods of application for weed control in soybeans. Weeds 9:639–645.Google Scholar
11. Upchurch, R. P. and Selman, E. L. 1968. Compatibility of chemical and mechanical weed control methods. Weed Sci. 16:121–130.Google Scholar
12. U.S. Department of Agriculture. 1979. Agricultural Statistics 1979. U.S. Government Printing Office, Washington, D.C. p. 129.Google Scholar
13. Wicks, G. A. and Anderson, E. N. 1969. Weed control in sugarbeets with herbicides and cultivation. Weed Sci. 17:456–459.Google Scholar