Hostname: page-component-84b7d79bbc-dwq4g Total loading time: 0 Render date: 2024-07-26T19:26:22.529Z Has data issue: false hasContentIssue false
  • English
  • Français

Common Cocklebur Competition in Soybeans

Published online by Cambridge University Press:  12 June 2017

W. L. Barrentine
W. L. Barrentine*
Affiliation:
Delta Branch of the Mississippi Agr. and For. Exp. Sta., Stoneville, MS 38776
Get access Rights & Permissions [Opens in a new window]

Abstract

The competitive effects of common cocklebur (Xanthium pensylvanicum Wallr.) on soybeans [Glycine max (L.) Merr. ‘Lee 68′] were studied on Dundee silty clay loam soil from 1970 to 1972. Full-season competition by common cocklebur at 3,300, 6,600, 13,000, and 26,000 plants/ha reduced the 2-year average soybean seed yields 10, 28, 43, and 52%, respectively. Competition from common cocklebur at 100,000 plants/ha for 4, 6, 8, 10, 12, and 16 weeks after soybean emergence reduced soybean seed yields 10, 36, 40, 60, 80, and 80%, respectively. A reduction in soybean stand occurred after 12 or more weeks competition, and an increase in soybean plant height occurred after 10 or more weeks competition. When common cockleburs were removed during the first 4 weeks after soybean emergence, no further removal was required to obtain maximum soybean yield. Bentazon [3-isopropyl-1H-2,1,3-benzothiadiazin-(4)3H-one 2,2-dioxide] at 1.1 to 2.2 kg/ha applied over-the-top of common cockleburs and soybeans was as effective as hand removal in terminating competition provided common cocklebur plants were not flowering.

Type
Research Article
Information
Weed Science , Volume 22 , Issue 6 , November 1974 , pp. 600 - 603
Copyright
Copyright © 1974 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. Davis, R.G., Johnson, W.C., and Wood, F.O. 1967. Weed root profiles. Agron. J. 59:555–558.Google Scholar
2. Eaton, B.J., Feltner, K.C., and Russ, O.G. 1973. Venice mallow competition in soybeans. Weed Sci. 21:89–94.Google Scholar
3. Gossett, B.J. 1971. Cocklebur – soybean's worst enemy. Weeds Today 2:9–11.Google Scholar
4. Holm, L. 1969. Weed problems in developing countries. Weed Sci. 17:113–118.Google Scholar
5. McWhorter, C.G. and Hartwig, E.E. 1972. Competition of johnsongrass and cocklebur with six soybean varieties. Weed Sci. 20:56–59.Google Scholar
6. Shipley, J.L. and Wiese, A.F. 1969. Economics of weed control in sorghum and wheat. Tex. Agr. Exp. Sta. MP 909 8 pp.Google Scholar
7. Staniforth, D.W. and Weber, C.R. 1966. Effects of annual weeds on growth and yield of soybeans. Agron. J. 48:467–471.Google Scholar
8. Thurlow, D.L. and Buchanan, G.A. 1972. Competition of sicklepod with soybeans. Weed Sci. 20:379–384.Google Scholar
9. U.S. Government Printing Office. 1970. Official Grain Standards of the United States. Revised Ed. pp. 8.1–8.6.Google Scholar
10. Waldrep, T.W. and McLaughlin, R.D. 1969. Cocklebur competition and control. The Soybean Farmer 3:26–27, 30.Google Scholar
11. Wheatley, L.E. and Cole, R.H. 1967. Weed competition in soybeans. Proc. Northeast. Weed Contr. Conf. 21:567–574.Google Scholar
12 Wiese, A.F. and Vandiver, C.W. 1970. Soil moisture effects on competitive ability of weeds. Weed Sci. 18:518–519.CrossRefGoogle Scholar
13. Wilson, H.P. and Cole, R.H. 1966. Morningglory competition in soybeans. Weeds 14:49–51.CrossRefGoogle Scholar