Integrated Crop Management News
 

Document Type

Article

Publication Date

5-28-2001

Abstract

The critical period of competition defines how long weeds can compete with crops before affecting yields. Two critical periods are defined. The first involves weeds that emerge at the same time as the crop and compete until a postemergence strategy is applied. These weeds have the greatest potential to affect crop yields and are the focus of this article. The second critical period involves weeds that emerge after crop emergence. As the interval between crop and weed emergence increases there is less likelihood that the weeds will impact yields.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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