Agronomy Library > Annual Weeds

Integrated Weed Management in No-till
Author: Dr. Bob Blackshaw
Date Created: November 27, 2008
Last Reviewed: November 27, 2008
Dr. Bob Blackshaw - Weed Scientist, Agriculture and Agri-Food Canada - Lethbridge, AB Integrated Weed Management in No-Till Successful long-term weed management requires a shift away from simply controlling weeds with herbicides to agricultural production systems that are redesigned to manage weeds at all stages of their life cycle. These production systems should restrict weed emergence, reduce weed growth and reproduction, and minimize weed interference with crops. Zero tillage is a key component of such improved cropping systems because weed seed death is higher, weed emergence is lower, and healthier crops are more competitive with weeds. Other practices such as diversified crop rotations, higher crop seeding rates, competitive cultivars, and strategic fertilizer management will further reduce weed populations over time. Examples of integrated management systems for troublesome weeds such as foxtail barley and downy brome will be given.  Click the pdf for the complete presentation