Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-31T18:35:45.005Z Has data issue: false hasContentIssue false
  • English
  • Français

The Critical Period of Weed Control in Soybean [Glycine max (L.) Merr.]

Published online by Cambridge University Press:  12 June 2017

Rene C. Van Acker ,
Clarence J. Swanton  and
Stephan F. Weise
Rene C. Van Acker
Affiliation:
Dep. Crop Sci., Univ. Guelph, Guelph, ON, Canada N1G 2W1
Clarence J. Swanton
Affiliation:
Dep. Crop Sci., Univ. Guelph, Guelph, ON, Canada N1G 2W1
Stephan F. Weise
Affiliation:
Dep. Crop Sci., Univ. Guelph, Guelph, ON, Canada N1G 2W1
Get access Rights & Permissions [Opens in a new window]

Abstract

Field studies were conducted at three locations over 2 yr in southern Ontario to determine the critical period of weed control in soybean. This period generally consisted of two discrete periods, a critical weed-free period and a critical time of weed removal. The critical weed-free period was relatively short in duration and consistent across locations and years. A period of weed control lasting up to the fourth node growth stage (V4), approximately 30 days after emergence (DAE), was adequate to prevent a yield loss of more than 2.5%. The critical time of weed removal was variable across locations and years and ranged, for example, from the second node growth stage (V2) to the beginning pod growth stage (R3), approximately 9 to 38 DAE, at a 2.5% yield loss level. A phenologically based period of most rapid yield loss due to weed interference occurred from beginning bloom stage (R1) to beginning seed stage (R5). The short and consistent critical weed-free period indicates the duration of residual herbicide control necessary in soybean and supports use of nonresidual, postemergence herbicides and mechanical weed control.

Keywords

Soybean, Glycine max (L.) Merr.Weed interferencedensitybiomasscrop yield lossintegrated weed management
Type
Weed Biology and Ecology
Information
Weed Science , Volume 41 , Issue 2 , June 1993 , pp. 194 - 200
Copyright
Copyright © 1993 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. Anonymous. 1991. Pages 66, 151−154 in Agricultural Statistics for Ontario. Publication 20. Ontario Ministry of Agriculture and Food, Toronto, ON, Canada.Google Scholar
2. Baldwin, F. L. and Santelmann, P. W. 1980. Weed science in integrated pest management. Bioscience 30:675–678.CrossRefGoogle Scholar
3. Brown, D. M. 1978. Heat units for corn in southern Ontario. Factsheet, Agdex 111/31, Ontario Ministry of Agriculture and Food, Toronto, ON, Canada.Google Scholar
4. Chepil, W. S. 1946. Germination of weed seeds II. The influence of tillage treatments on germination. Sci. Agric. 26:347–357.Google Scholar
5. Coble, H. D., Williams, F. M., and Ritter, R. L. 1981. Common ragweed (Ambrosia artemisiifolia) interference in soybeans (Glycine max). Weed Sci. 29:339–342.CrossRefGoogle Scholar
6. Eaton, B. J., Russ, O. G., and Feltner, K. C. 1976. Competition of velvetleaf, prickly sida and Venice mallow in soybeans. Weed Sci. 24:224–228.CrossRefGoogle Scholar
7. Edwards, C. A. and Regnier, E. E. 1989. Designing integrated low-input fanning systems to achieve effective weed control. Pages 585–590 in Brighton Crop Prot. Conf.—Weeds.Google Scholar
8. Egley, G. H. and Williams, R. D. 1991. Emergence periodicity of six summer annual weed species. Weed Sci. 39:595–600.CrossRefGoogle Scholar
9. Fehr, W. R. and Caviness, C. E. 1977. Stages of soybean development. Spec. Rep. 80. Cooperative Ext. Serv., Iowa State Univ., Ames, IA. 11 pp.Google Scholar
10. Hagood, E. S., Bauman, T. T., Williams, J. L., and Schreiber, M. M. 1981. Growth analysis of soybeans (Glycine max) in competition with jimsonweed (Datura stramonium). Weed Sci. 29:500–504.Google Scholar
11. Hall, M. R., Swanton, C. J., and Anderson, G. W. 1992. The critical period of weed control in grain corn (Zea mays L.). Weed Sci. 40:441–447.CrossRefGoogle Scholar
12. Harris, T. C. and Ritter, R. L. 1987. Giant green foxtail (Setaria viridis var. major) and fall panicum (Panicum dichotomiflorum) competition in soybeans (Glycine max). Weed Sci. 35:663–668.CrossRefGoogle Scholar
13. Harrison, S. K. 1990. Interference and seed production by common lambsquarters (Chenopodium album) in soybeans (Glycine max). Weed Sci. 38:113–118.CrossRefGoogle Scholar
14. Kirkpatrick, B. L., Wax, L. M., and Stoller, E. W. 1983. Competition of jimsonweed with soybean. Agron. J. 75:833–836.Google Scholar
15. Murphy, T. R. and Gossett, B. J. 1981. Influence of shading by soybeans (Glycine max) on weed suppression. Weed Sci. 29:610–615.CrossRefGoogle Scholar
16. Oliver, L. R., Frans, R. E., and Talbert, R. E. 1976. Field competition between tall morningglory and soybean I. Growth analysis. Weed Sci. 24:482–488.CrossRefGoogle Scholar
17. Roberts, H. A. 1976. Weed competition in vegetable crops. Ann. Appl. Biol. 83:321–324.Google Scholar
18. Sims, B. D. and Oliver, L. R. 1990. Mutual influence of seedling johnsongrass (Sorghum halepense), sicklepod (Cassia obtusifolia), and soybean (Glycine max). Weed Sci. 38:139–147.Google Scholar
19. Stoller, E. W., Harrison, S. K., Wax, L. M., Regnier, E. E., and Nafziger, E. D. 1987. Weed interference in soybeans (Glycine max). Rev. Weed Sci. 3:155–181.Google Scholar
20. Swanton, C. J. and Weise, S. F. 1991. Integrated weed management: rationale and approach. Weed Technol. 5:657–663.Google Scholar
21. Upfold, R. A. and Olechowski, H. T. 1988. Soybean production Publication 173. Ontario Ministry of Agriculture and Food. Toronto ON, Canada. 16 pp.Google Scholar
22. Weaver, S. E. and Tan, C. S. 1983. Critical period of weed interference in transplanted tomatoes (Lypersicon esculentum): growth analysis. Weed Sci. 31:476–481.CrossRefGoogle Scholar
23. Woolley, B. L., Swanton, C. J., Michaels, T. E., and Hall, M. R. 1992, The critical period of weed control in white bean, Phaseolus vulgaris . Weed Sci. (submitted) Google Scholar
24. Zimdahl, R. L. 1987. The concept and application of the critical weed free period. Pages 145–155 in Altieri, M. A. and Liebman, M., eds. Weed Management in Agroecosystems: Ecological Approaches. CRC Press, Inc., Boca Raton, FL.Google Scholar
25. Zimdahl, R. L. 1980. Weed-Crop Competition—A Review. Int. Plant Prot. Ctr., Oregon State Univ., Corvallis, OR. Pages 83–93.Google Scholar