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Giant Foxtail Seeded at Various Times in Corn and Soybeans

Published online by Cambridge University Press:  12 June 2017

E. L. Knake
Affiliation:
Department of Agronomy, University of Illinois, Urbana
F. W. Slife
Affiliation:
Department of Agronomy, University of Illinois, Urbana
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Abstract

Giant foxtail (Setaria faberii Herrm.) was seeded the day the crop was planted and 3, 6, 9, and 12 weeks later. Foxtail that began growing with the crop and was left to maturity reduced corn yields 13% and soybean yields 27%. Foxtail seeded 3 weeks or later after the crop was planted did not cause yield reductions in corn or soybeans. Although not competitive, foxtail seeded 3 weeks after corn was planted produced 500 pounds of dry matter per acre, and all seedings in corn produced seed. Soybeans produced more shade than corn, and foxtail from the 3-week or later seedings in soybeans produced little or no dry matter or seed.

Type
Research Article
Information
Weeds , Volume 13 , Issue 4 , October 1965 , pp. 331 - 334
Copyright
Copyright © 1965 Weed Science Society of America 

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References

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