Soybean yields can be stubbornly stagnant for some farmers, but Bryan Severs has found a way to break through the yield barrier. The Potomac, Ill., grower, who no-tills non-GMO soybeans and strip-tills corn across 5,000 acres, shares his program for raising high-yielding soybeans as his farm shoots for 75 bushels an acre in every field, every year.