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Professional Activities

  • 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.