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)


"Corn is getting too tough for us and we had many problems planting through the trashy residue. We heard about your product and how it chops the stalks. We put the whole kit on both of our 6-row heads with stalk stompers. We know we’ll save a pass in the spring. They pay for themselves!"

- Allen Peters, Eastern PA