About the Authors

Adam S. Davis
United States Department of Agriculture/Agricultural Research Service, Global Change and Photosynthesis Research Unit, Urbana, Illinois, United States of America

Jason D. Hill
Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, Minnesota, United States of America

Craig A. Chase
Leopold Center for Sustainable Agriculture, Iowa State University, Ames, Iowa, United States of America

Ann M. Johanns
Department of Economics, Iowa State University Extension and Outreach, Osage, Iowa, United States of America

Matt Liebman
Department of Agronomy, Iowa State University, Ames, Iowa, United States of America

Corresponding Author

adam.davis@ars.usda.gov

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ASD ML. Performed the experiments: CAC AMJ ML. Analyzed the data: ASD JDH CAC AMJ ML. Contributed reagents/materials/analysis tools: ML. Wrote the paper: ASD JDH ML.