Northwest and Allee Research and Demonstration Farm
Corn planting is one of the most critical operations of the season. Correct seed-soil contact is important in order to optimize yields.
Iowa State University
Fawcett, Jim; Hanna, H. Mark; Sievers, Josh; and Koopman, Zack, "On-Farm Corn Planter Trials" (2015). Iowa State Research Farm Progress Reports. 2125.