Crop Fields in Heilongjiang, China (IMAGE) Michigan State University Caption Researcher Jing Sun and Ph.D. candidate Anna Herzberger examine the soil in Chinese fields most commonly now used to grow corn. Credit Sue Nichols, Michigan State University Center for Systems Integration and Sustainability Usage Restrictions With credit. 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.