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Effect of Weeds on Soybean Yield and Harvesting Efficiency

Published online by Cambridge University Press:  12 June 2017

W. R. Nave  and
L. M. Wax
W. R. Nave
Affiliation:
Plant Sci. Res. Div., Agr. Res. Ser., U. S. Dep. of Agr., Univ. of Ill., Urbana, Illinois 61801
L. M. Wax
Affiliation:
Plant Sci. Res. Div., Agr. Res. Ser., U. S. Dep. of Agr., Univ. of Ill., Urbana, Illinois 61801
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Abstract

A reduction in soybean (Glycine max (L.) Merr.) yield of 25% (1968) to 30% (1969) resulted from one smooth pigweed (Amaranthus hybridus L.) per ft in 30-inch rows. A giant foxtail (Setaria faberii Herrm.) infestation of one plant per ft in 30-inch rows reduced yield 13% in 1969. Harvesting before weeds were desiccated resulted in significant threshing and separating losses as speed was increased from 1 to 2 and 3 mph. Stubble, lodging, and stalk losses were more than double in the pigweed and foxtail plots when compared to the weed-free plots after weeds were desiccated by frost.

Type
Research Article
Information
Weed Science , Volume 19 , Issue 5 , September 1971 , pp. 533 - 535
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

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