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Competition of Florida Beggarweed and Sicklepod with Peanuts I. Effects of Periods of Weed-free Maintenance or Weed Competition

Published online by Cambridge University Press:  12 June 2017

E. W. Hauser ,
G. A. Buchanan  and
W. J. Ethredge
E. W. Hauser
Affiliation:
U.S. Dep. of Agr., Coastal Plain Exp. Sta., Tifton, GA 31794
G. A. Buchanan
Affiliation:
Dep. of Agron., Auburn Univ., Auburn, AL 36830
W. J. Ethredge
Affiliation:
S.W. Br. Exp. Sta., Plains, GA 31780
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Abstract

Peanut (Arachis hypogaea L. ‘Tifspan’ or ‘Florunner’) yields were not reduced when the crop was maintained free of Florida beggarweed [Desmodium tortuosum (Sw.) DC.] or sicklepod (Cassia obtusifolia L.) for 4 weeks after crop emergence and when vigorous crop growth was maintained for the remainder of the season. Sometimes weed-free maintenance for only 2 weeks resulted in near-normal yields, which indicated that the canopy of peanut leaves effectively suppressed the weeds. Conversely, these weeds had to compete with peanuts for more than 10 weeks before crop yield was reduced. Weeds that overtopped the peanuts at harvest emerged during the first 6 weeks after planting.

Type
Research Article
Information
Weed Science , Volume 23 , Issue 5 , September 1975 , pp. 368 - 372
Copyright
Copyright © 1975 by the Weed Science Society of America 

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References

Literature Cited

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