Leaf Stage in Clover (image) American Society of Agronomy Share Print E-Mail Caption Corn growing in the living mulch system. Clover continues to grow until the corn is tall enough to intercept about 40 percent of the incidental light. Credit Nick Hill Usage Restrictions Please use with story only Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.