In 2011/2012, 2012/2013 and 2013/2014, we grew red clover in an organic soybean-winter wheat-corn rotation near Mead, NE with the goal of providing N to the following corn crop. The results from the drought year 2012/13 are not included because red clover failed to grow. We compared red clover to a control that did not receive N fertilizer but was disked 2 to 3 times to keep it weed-free. Soils at this site are silty clay loam.