Evaluation of Cover Crops Drill Interseeded into Corn Across the Mid-Atlantic Region

摘要: Cover crop adoption remains low in the mid-Atlantic United States despite potential conservation and production benefits. The short growing season window after corn (Zea mays L.) is a primary limiting factor. A high-clearance grain drill was recently developed to allow for cover interseeding into standing cash crops. Experiment 1 tested viability of crops at V5 growth stage across multiple locations. 2 timing (V2–V6 stage) on yield Pennsylvania. At 16 locations throughout Maryland, Pennsylvania, New York, we evaluated fall spring biomass effect yield. treatments included annual ryegrass [Lolium perenne L. ssp. multiflorum (Lam.) Husnot]), mixture legume species, an ryegrass–legume mixture. Each treatment successfully established yet highly variable. Across locations, produced highest mean aboveground spring. Spring interseeded generally increased compared with biomass. Interseeded did not affect yields host during year establishment indicated that before V3 reduced yields. We recommend or V4 prevent competition corn. Our results highlight drill-interseeding as strategy increasing adoption.