Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-10T14:54:58.244Z Has data issue: false hasContentIssue false
  • English
  • Français

Soybean (Glycine max) Growth as Affected by Weed Removal, Cultivar, and Row Spacing

Published online by Cambridge University Press:  12 June 2017

O. C. Burnside
O. C. Burnside*
Affiliation:
Dep. Agron., Univ. of Nebraska, Lincoln, NE 68583
Get access Rights & Permissions [Opens in a new window]

Abstract

The influence of weed removal, cultivar, and row spacing on soybean [Glycine max (L.) Merr.] yields was determined for 3 yr at the western edge of the soybean production area in the Great Plains in order to establish the critical weed-control periods. Early weed removal aided soybean stand establishment, and there was an inverse relationship between soybean stand and production of weed top-growth. Soybean seed weight and numbers per plant both increased as weed growth decreased. The soybean variety ‘Amsoy 71’ was more competitive than ‘Beeson’ to both early and late emerging weeds. Soybeans weeded at 2 through 4 weeks after planting did not show significantly reduced soybean yields from later emerging weeds. Thus, weed control the first month after planting is the most critical in obtaining high soybean yields.

Keywords

Competitioneconomic threshold levelinterferenceseed weightweed yields
Type
Research Article
Information
Weed Science , Volume 27 , Issue 5 , September 1979 , pp. 562 - 565
Copyright
Copyright © 1979 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. Ambrose, L. G. and Coble, H. D. 1975. Fall panicum competition in soybeans. Proc. South. Weed Sci. Soc. 28:36.Google Scholar
2. Barrentine, W. L. 1974. Common cocklebur competition in soybeans. Weed Sci. 22:600–603.Google Scholar
3. Burnside, O. C. and Colville, W. L. 1964. Soybean and weed yields as affected by irrigation, row spacing, tillage, and amiben. Weeds 12:109–112.Google Scholar
4. Burnside, O. C. and Wicks, G. A. 1969. Influence of weed competition on sorghum growth. Weed Sci. 17:332–334.Google Scholar
5. Burnside, O. C. 1972. Tolerance of soybean cultivars to weed competition and herbicides. Weed Sci. 20:294–297.Google Scholar
6. Burnside, O. C. and Moomaw, R. S. 1977. Control of weeds in narrow-row soybeans. Agron. J. 69:793–796.Google Scholar
7. Dowler, C. C. and Parker, M. B. 1975. Soybean weed control systems in two southern coastal plain soils. Weed Sci. 23:198–202.Google Scholar
8. Eaton, B. J., Feltner, K. C., and Russ, O. G. 1973. Venice mallow competition in soybeans. Weed Sci. 21:89–94.Google Scholar
9. 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.Google Scholar
10. Hinson, K. and Hanson, W. D. 1962. Competition studies in soybeans. Crop Sci. 2:117–123.Google Scholar
11. Knake, E. L. and Slife, F. W. 1965. Giant foxtail seeded at various times in corn and soybeans. Weeds 13:331–334.Google Scholar
12. McWhorter, C. G. and Hartwig, E. E. 1972. Competition of johnsongrass and cocklebur with six soybean varieties. Weed Sci. 20:56–59.CrossRefGoogle Scholar
13. McWhorter, C. G. and Barrentine, W. L. 1975. Cocklebur control in soybeans as affected by cultivars, seeding rates, and methods of weed control. Weed Sci. 23:386–390.CrossRefGoogle Scholar
14. Moolani, M. K., Knake, E. L., and Slife, F. W. 1964. Competition of smooth pigweed with corn and soybeans. Weeds 12:126–128.Google Scholar
15. Staniforth, D. W. and Weber, C. R. 1956. Effects of annual weeds on the growth and yield of soybeans. Agron. J. 48:467–471.Google Scholar
16. Staniforth, D. W. 1958. Soybean-foxtail competition under varying soil moisture conditions. Agron. J. 50:13–15.Google Scholar
17. Staniforth, D. W. 1962. Responses of soybean varieties to weed competition. Agron. J. 54:11–13.CrossRefGoogle Scholar
18. Thurlow, D. L. and Buchanan, G. A. 1972. Competition of sicklepod with soybeans. Weed Sci. 20:379–384.Google Scholar
19. Wax, L. M. and Pendleton, J. W. 1968. Effect of row spacing on weed control in soybeans. Weed Sci. 16:462–465.Google Scholar
20. Weber, C. R. and Staniforth, D. W. 1957. Competitive relationships in variable weed and soybean stands. Agron. J. 49:440–444.CrossRefGoogle Scholar
21. Watson, H. P. and Cole, R. H. 1966. Morningglory competition in soybeans. Weeds 14:49–51.Google Scholar