Managing cover crops before corn focus of MU Strip Trial Program

COLUMBIA, Mo. – University of Missouri Extension is looking for farmers to participate in cover crop trials as part of the “MU Certified” Strip Trial Program.MU Extension nutrient management specialist John Lory, who leads the program, said this year’s farmer panel approved trials focused on improving management of cover crops, particularly ahead of corn.“The farmer panel has encouraged us to work with farmers who have success with cover crops so we can learn and document what works,” Lory said.The strip trial program uses on-farm research to help farmers improve profits and maintain the environment. A local extension person will work with the farmer to lay out a trial that works with the farmer’s equipment and provide guidance throughout the trial. Drones will survey fields throughout the year to monitor residue over winter and crop condition during the growing season. Every fall the program sends the farmer results from their farm and from other trial participants.Cover crop strip trial options for planting this fallCover crop comparison ahead of cornLory seeks farmers who have success with cover crops ahead of corn. The farmer controls all management, including the type of cover crop, seeding rate, planting method and timing, and termination method and timing. This is compared to a no-cover control. The trial tracks the impact of treatment on residue cover and corn yield.Cover crop management to maximize residue after soybeanThis two-year trial tests a strategy to increase residue ahead of soybean as a way to increase residue after soybean. This strategy does not require planting a cover crop directly before corn. Cover crop treatments are established this fall on fields to be planted to soybean and will be tracked through the corn crop in 2022. Participants will use a winter small grain such as cereal rye as the cover crop this fall. The farmer chooses the cover crop termination date, but late termination such as planting soybean “into the green” also is preferred.Seeding rate of cover crop ...