• Extending and diversifying a crop rotation to include a small grain presents farmers with the opportunity to also include a forage legume that could possibly reduce the need for synthetic N fertilizer. • Cooperator Tim Sieren grew corn in rotation following cereal rye frostseeded with red clover and corn in rotation following cereal rye alone. • Tim also applied a low and high N rate to the corn following rye + red clover and the corn following rye alone.