For Aaron Wickstrom, keeping his 2,400 dairy herd fed requires triple-cropping on his 1,000 acres of flood and pivot irrigated fields near Hilmar, Calif. To provide silage, he first plants corn by May 1 that’s harvested in August, followed by sorghum that’s harvested as silage in October. He then no-tills a winter cover crop of Italian rye or a mix of wheat, oats and rye.