Nathan Brause thinks he should have listened to his forebears. The Sulphur Springs, Ohio, no-tiller inherited a farm that featured a three-crop rotation of corn, soybeans and wheat that had been in no-till when his grandpa farmed the land.

Tillage radishes aren't the only cover crop you’ll find growing on Steve Groff’s farm this year. The no-tiller of Cedar Meadow Farm in Lancaster County, Pa., is on a quest to find the next great cover crop for no-tillers.