Marion Calmer: The Narrow Row Corn Visionary

Calmer BT Chopper Commercial 2015

Dr. Fred Below on Cornstalk Residue Management

Planting Into Residue 2015

Planting Into Residue 2

Calmer BT Chopper Demonstration

Trash Reduction Kit from Calmer Corn Heads

Calmer BT Chopper® Kit Field Video

Calmer crushing knife rolls for corn heads by FIN-TV

Calmer Corn Heads Owner Makes Huge Impact


Calmer Showcases Worlds First 30-Row, 12 inch Corn Head


2013 Illinois Soybean Summit - Marion Calmer (Keynote Speaker)


"I've been running Calmer's Trash Reductions Kits since 2004 and have never had to stop for trash. Never having to stop once in all that time, I feel has increased my productivity 25%-30% due to the combine not having to sort through all that trash. It's incredible running 6 mph while picking 200 b/u corn!"

- Mendell Elson, Miami, MO