Greg Roth, a professor at Penn State University, explains how interseeding is a system designed to help establish cover crops in areas where cover crop establishment is not that feasible because of a late harvest and short season. With this system, cover crops are interseeded early in the season, but provide minimal competition to the corn. The interseeder is designed to be able to apply sidedress N fertilizer and a post-emergent herbicide while seeding the cover crop, eliminating the need for additional trips across the field and reducing the cost of seeding the cover crop.
Circleville, Ohio, no-tiller Ryan Wilson discusses the setup for the family's John Deere MaxEmerge no-till corn planter, which includes cast iron closing wheels, Martin row cleaners and Precision Planting's 20/20 AirForce system. They apply about 30 pounds per acre of nitrogen at planting to ensure corn seedlings have enough N after following the cereal rye cover crop.