Skip to main content
- Founding Editor-in-Chief, Crops. Open Access Journal, MDPI, 2021-present.
- Editor, Agronomy Open Access Journal, Editorial Board, MDPI, 2018-present.
- Project Director, CenUSA Bioenergy, USDA-NIFA-AFRI Coordinated Agricultural Project, 2010-2017.
- Board of Directors, American Society of Agronomy, 2002-05, 2006-10. President, 2008.
- Council of Scientific Society Presidents, 2002-04, 2006-09.
- Consultant-evaluator for the Program to Evaluate and Advance Quality, The Higher Learning Commission of the North Central Association of Colleges and Schools, 2005-present.
- Systems Portfolio Appraiser for the Academic Quality Improvement Program, The Higher Learning Commission of the North Central Association of Colleges and Schools, 2005-present.
- Board of Directors, Council for Agricultural Science and Technology, 2004-05.
- Board of Directors, Crop Science Society of America, 2002-05. President 2004.
- Scientific Quality Review Panel, USDA-ARS, 2002.
- Harry J. Larsen/Hydro Memorial Scholarship Committee, ASA, 2002-03.
- Founding Editor, Crop Management, 2001-02.
- Crop Science Visibility and Identity Committee, CSSA, 2001-02.
- Senior Editor, Plant Health Progress, 2000-01.
- Symposium Committee, Co-chair. Distance Education in Agronomy: New Opportunities for Life-long Learners, Divisions A-1, A-4, and A9, American Society of Agronomy, 1999-2000.
- Renaissance Initiative Coordinating Team (C235), Crop Science Society of America, 2000-02.
- Monographs Committee (ACS325), American Society of Agronomy, 1995-98.
- Editor, CSSA Special Publication, Native Warm Season Grasses: Research Trends and Issues, (ACS322), 1995-99.
- Program Planning Committee, Native Warm Season Grass Conference and Expo, 1995-96.
- Feasilbility Committee for Monograph on Silage (ACS394.38), Chair, American Society of Agronomy, 1994-95.
- Technical Editor, Agronomy Journal, 1993-97.
- Associate Editor, Crop Science, 1993-94.
- Editor, CSSA Special Publication, Post-Harvest Physiology and Preservation of Forages, Crop Science Society of America, 1992-95.
- Organization, Policy, and Bylaws Committee (A201), American Society of Agronomy, 1992-95.
- Annual Meeting Program Planning Committee, Crop Science Society of America, 1991-92.
- Board of Directors, Crop Science Society of America, 1990-92.
- Crop Quality and Utilization, Division C6, Chair, Crop Science Society of America, 1990-92.
- Associate Editor, Agronomy Journal, 1989-93, 2014-present.
- Forage, Grassland, and Range Resource Committee (ACS824), American Society of Agronomy, 1988-90, 1992-94.
- Special Liaison Representative to American Society of Animal Science (ACS 628), American Society of Agronomy, 1988-90.
