When it’s time to plan your cover crops for weed suppression, choosing the right planting timing as well as the right type of cover crop is crucial for success. It’s also wise to think ahead of time when to terminate the cover crop, since high biomass levels are required to enhance weed suppression. In this video, Dr. Norsworthy looks at terminating a cereal rye cover crop at 2, 4 and 6 weeks prior to planting soybean and the effects on weed suppression. See this and what residual herbicides could be providing to minimize weed emergence and selection for herbicide resistance when combined with cover crops.
Researcher: Dr. Jason Norsworthy, University of Arkansas
Edits: Claudio Rubione, University of Delaware