COLUMBUS, Ohio -- Planting continuous corn may promote greater weed control problems, but growers can stave off any serious issues as long as they follow the best management strategies for their situation.
"Rotation of crops has historically resulted in greater diversity in herbicide use. Planting a monoculture of corn, or even soybeans, can result in greater weed problems over the long term, due to the propensity for overuse of certain herbicides that weeds can become resistant to," said Mark Loux, an Ohio State University Extension weed specialist. "However, we are not convinced that the planting of continuous corn really poses more serious issues for weed management, compared with a crop rotation, as long as appropriate weed management strategies are used."
Loux offers the following considerations for weed management in a continuous corn system to most effectively control tough weeds and minimize selection for herbicide resistance.
For more information on managing weeds in continuous corn systems, or to learn more about continuous corn production, log on the OSU Extension Agronomy Crops Team Web site.
SOURCE: Ohio State news release.