George Washington Carver and Henry A. Wallace

"Because of his friendship with my father, George Carver often took me with him on botany expeditions, and it was he who first introduced me to the mysteries of plant fertilization."
--H. A. Wallace

Current Research Group

  • Mr. Joshua (Joey) Budi, M.S. student, Sustainable Agriculture and Plant Pathology and Microbiology (co-supervised with Dr. Leonor Leandro).
  • Ms. Lydia English, M.S. student, Sustainable Agriculture.
  • Dr. Farnaz Kordbacheh, Post-doctoral Scientist.
  • Dr. Matt Liebman, Professor of Agronomy and H.A. Wallace Chair for Sustainable Agriculture.
  • Ms. Huong Nguyen, Ph.D. student, Sustainable Agriculture.
  • Ms. Hanna Poffenbarger, Ph.D. student, Soil Science and Sustainable Agriculture (co-supervised with Dr. Michael Castellano).
  • Mr. David Weisberger, Ph.D. student, Crop Production and Physiology.
  • Mr. Matt Woods, Agricultural Specialist.
  • Mr. Tim Youngquist, Agricultural Specialist.

Former Graduate Students and their current positions

  • Dr. Michael Cruse (M.S. 2009), Extension Educator, University of Minnesota-Extension, Preston and Caledonia, MN.
  • Dr. Adam Davis (M.S. 1998, Ph.D. 2002), Research Ecologist, USDA-Agricultural Research Service-Global Change and Photosynthesis Research Unit, Urbana, IL.
  • Dr. Ranae Dietzel (Ph.D. 2014), Postdoctoral Scientist, Department of Agronomy, Iowa State University, Ames, IA.
  • Dr. Elizabeth Dyck (Ph.D. 1994), Director, Organic Growers' Research and Information-Sharing Network, Bainbridge, NY.
  • Dr. Robin Gómez (Ph.D. 2012), Associate Professor, Weed Science and Cropping Systems, Universidad de Costa Rica, San José, Costa Rica.
  • Ms. Rhonda Graef (M.S. 2004), Biological Laboratory Technician, USDA-Agricultural Research Service-National Soil Erosion Lab, West Lafayette, IN.
  • Dr. Andrew H. Heggenstaller (M.S. 2005, Ph.D. 2008), Encirca Services Commercial Unit Lead, Dupont Pioneer, Minneapolis, MN.
  • Ms. Sarah Hirsh (M.S. 2012), Ph.D. candidate, Department of Environmental Science and Technology, University of Maryland, College Park, MD.
  • Dr. Jean-Luc Jannink (M.S. 1995), Research Geneticist, USDA-Agricultural Research Service-Plant, Soil, and Nutrition Research Lab, Ithaca, NY.
  • Dr. Meghann E. Jarchow (Ph.D. 2012), Assistant Professor, Department of Biology and Sustainability Program Leader, University of South Dakota, Vermilion, SD.
  • Dr. Carlos A. Khatounian (Ph.D. 2004), Professor, Produção Vegetal, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, Brazil.
  • Dr. Terrance Loecke (M.S. 2002), Assistant Professor, Kansas Biological Survey and Environmental Studies Program, University of Kansas, Lawrence, KS.
  • Ms. Barbara Murphy (M.S. 1992), Academic Advisor, Year Round Agriculture Initiative, South Paris, ME.
  • Dr. Megan E. O'Rourke (M.S. 2005), Assistant Professor, Department of Horticulture, Virginia Polytechnic Institute and State University, Blacksburg, VA.
  • Dr. Will Osterholz (Ph.D. 2016, co-supervised with Dr. Michael Castellano), Post-doctoral scientist, Department of Agronomy, University of Wisconsin–Madison, Madison, WI
  • Dr. Valentín Picasso (Ph.D. 2008, co-supervised with Dr. E. Charles Brummer), Assistant Professor, Department of Agronomy, University of Wisconsin–Madison, Madison, WI.
  • Dr. Pablo Torres-Lima (M.S. 1994), Professor, Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana, Coyoacán, Mexico.

Former Post-doctoral Scientists and their current positions

  • Dr. Eric Gallandt (1994-1997), Professor, Department of Plant, Soil, and Environmental Sciences, University of Maine, Orono, ME.
  • Dr. Fabián Menalled (2001-2004), Professor, Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT.
  • Dr. Paula Westerman (2004-2007), Scientist, Faculty of Agricultural and Environmental Sciences, Group Crop Health, University of Rostock, Rostock, Germany.
  • Dr. Carol Williams (2005-2009), Research Scientist, Center for Agroforestry, University of Missouri, Columbia, MO.

Former Staff

Ms. Marcia Minear, Administrative Specialist

In Remembrance

David N. Sundberg died unexpectedly in his sleep on 4 May 2014. Dave was born in Storm Lake, IA, and grew up working with his father on their family farm near Linn Grove. He graduated with B.S. and M.S. degrees in agronomy from ISU, and was employed as an Agricultural Specialist in the Department of Agronomy for 32 years. He was a vital member of our research group, leading activities in the field and lab. His attention to detail, careful planning, knowledge of farming practices, and hard work were essential to the successes achieved in projects undertaken by our team. His love of farming and Iowa land was apparent throughout his life. Dave is survived by his wife, Nancy, and two children, Michael and Hanna.