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- Giant of Progress in Forage and Grazingland Agriculture, CSSA Division C6 (Forage and Grazinglands)
- Interdisciplinary Team Research Award, Iowa State University, 2024.
- W.A. Albrecht Earth Day Lectureship, School of Natural Resources, University of Missouri, 2022.
- Carl Sprengel Agronomic Research Award, American Society of Agronomy, 2019.
- Arden R. Campbell Award, Department of Agronomy, Iowa State University, 2018.
- Distance Education Teaching Award, College of Agriculture and Life Sciences, Iowa State University, 2018.
- Pioneer Hi-Bred Agronomy Professorship, Iowa State University, 2017-20.
- Martin and Ruth Massengale Lectureship, Crop Science Society of America, 2016.
- Agronomic Service Award, American Society of Agronomy, 2011.
- ASA Distinguished Service Award, American Society of Agronomy, 2011.
- Fellow, American Association for the Advancement of Science, 2008.
- Team Award, presented to the Master of Science in Agronomy Distance Education Program by the College of Agriculture, Iowa State University, 2007.
- Innovator Award, Presented to the Master of Science in Agronomy Distance Education Program by the Iowa Distance Learning Association, 2006.
- Senior Research Fellowship, AgResearch Grasslands, 1998.
- Fellow, Crop Science Society of America, 1996.
- Raymond and Mary Baker Agronomic Excellence Award, Iowa State University, 1996.
- Fellow, American Society of Agronomy, 1995.
- Young Crop Scientist Award, Crop Science Society of America, 1993.
- Point of Light Award, USDA, 1991.
- Merit Award, American Forage and Grassland Council, 1991.
- Outstanding Young Scientist, American Forage and Grassland Council, 1982.
- Wall Street Journal Student Achievement Award, Arizona State University, 1979.
- Cowden Agricultural Scholarship, Arizona State University, 1978.
