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Characterizing Weed Community Seedling Emergence for a Semiarid Site in Colorado

Published online by Cambridge University Press:  12 June 2017

R. L. Anderson
R. L. Anderson*
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Akron, CO 80720
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Abstract

This study characterized the emergence pattern of a weed community of 16 species between April 1 and August 31 over a 7-yr period. Weed seedlings were counted weekly in quadrats established in winter wheat stubble within no-till and conventional-till production systems. Weed emergence showed two peaks, the first between April 25 and May 9, and the second between May 30 and June 13. Tillage did not affect the weed community emergence pattern. Knowledge of weed community emergence pattern in conjunction with crop simulation models could be used to suggest cultural practices such as optimal planting dates that favor a crop over weeds, and possibly reduce herbicide use for within-crop weed control.

Keywords

Winter wheat, Triticum aestivum L.Crop modelscultural practicesintegrated weed management systemslow-herbicide-input production systems
Type
Research
Information
Weed Technology , Volume 8 , Issue 2 , June 1994 , pp. 245 - 249
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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