Benefits of Crop Rotation (IMAGE) University of New Hampshire Caption Former UNH postdoctoral student Lisa Tiemann and former UNH undergraduate student Michael Casazza work in Dr. Stuart Grandy's lab on a project to determine how soil structure is responding to agricultural diversity. Credit Credit: Stuart Grandy/UNH. Usage Restrictions None License Licensed content 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.