Keith and Brian Berns rarely get a day off in their corn, soybean and rye/triticale rotation. Their separate entity, a cover-crop seed operation, makes sure of it. But the diversified enterprises provide more overall profit potential in volatile marketing environments. The Berns brothers no-till about 2,500 acres outside Bladen, Neb.; about 30% of those are irrigated. Some of both irrigated and dryland acres are used for cover-crop seed production, marketed through Green Cover Seed. The brothers’ company, formed in 2009, markets several lines of legumes, broadleaves, grasses and radishes, turnips and other exotic Brassicas.