HARVEL, Ill. — To the untrained eye, Richard Lyons’ farm looks messy. There are no uniform rows of green against a bare canvas of brown soil. Instead, soybean sprouts, 6 inches tall, spring up through patches of decaying corn stalks and blades of dead cereal rye. But that’s exactly the way Lyons planned it. The techniques on display at his 300-acre family farm have been honed over a ...