As temperatures warm this spring, cover crop termination is on the to-do list for some Iowa fields. Killing cover crops with herbicides is the most common termination method. The effectiveness of herbicides at terminating a cover crop depends primarily on three things:
1. Cover crop species and growth stage
2. Herbicide and rate used
Iowa State University
Anderson, Meaghan J. B.; Vittetoe, Rebecca K.; and Hartzler, Robert G., "Terminating Cover Crops This Spring" (2020). Integrated Crop Management News. 2614.
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