Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-28T22:36:19.099Z Has data issue: false hasContentIssue false
  • English
  • Français

Competition Between Irrigated Sugar Beets and Annual Weeds

Published online by Cambridge University Press:  12 June 2017

J. H. Dawson
J. H. Dawson*
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, Irrigation Experiment Station, Prosser, Washington
Get access

Abstract and summary

Experiments of two types were conducted. (1) Weeds were allowed to grow for different periods after planting sugar beets; they were then removed and the beets hand-weeded until harvest. (2) Sugar beets were hand-weeded for different periods after planting; then no further weeding was done. Weed competition reduced beet yields up to 94%. Weeds that emerged soon after beet planting reduced yields the most, but they exerted little yield-reducing competition until later than 12 weeks after planting the beets (9 weeks after beet emergence). Full-season weed control resulted when beets were hand-weeded for 10 to 12 weeks after planting. Weeds that emerged later were controlled by crop competition.

Type
Research Article
Information
Weeds , Volume 13 , Issue 3 , July 1965 , pp. 245 - 249
Copyright
Copyright © 1965 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. Brimhall, Phil B., Chamberlain, Earl W., and Alley, H. P. 1965. Competition of annual weeds and sugar beets. Weeds 13:33–35.CrossRefGoogle Scholar
2. Dawson, J. H. 1964. Competition between irrigated field beans and annual weeds. Weeds 12:206–208.CrossRefGoogle Scholar
3. Donald, C. M. 1958. The interaction of competition for light and nutrients. Australian J. Agr. Res. 9:421–435.CrossRefGoogle Scholar
4. Gressel, J. D. and Holm, L. G. 1964. Chemical inhibition of crop germination by weed seeds and the nature of inhibition by Abutilon theophrasti . Weed Res. 4:44–53.CrossRefGoogle Scholar
5. Tukey, Loren D., Fluck, M. F. and Marsch, C. R. 1960. An illumination totalizer for integrating light from either natural or artificial sources. Proc. Amer. Soc. Hort. Sci. 75:804–810.Google Scholar