Using Biodiversity to Link Agricultural Productivity with Environmental Quality: Results From Three Field Experiments In Iowa.
Matt Liebman, Department of Agronomy, Iowa State University, Ames, IA, Matthew Helmers, Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA, Lisa A. Schulte, Department of Natural Resources Ecology and Management, Iowa State University, Ames, IA and Craig A. Chase, Iowa State University Extension, Ames, IA