Potassium Fertility Research and Education

Jeffrey J. Volenec

Jeffrey J. Volenec, Professor
Department of Agronomy, Purdue University,
915 West State St., West Lafayette, IN 47907-2054
Telephone: (765) 494-8071
FAX: (765) 496-2926
E-Mail: jvolenec@purdue.edu

Education

B.S. Agronomy-Natural Science, 1978, University of Wisconsin, Madison
M.S. Crop Physiology, 1980, University of Missouri, Columbia
Ph.D. Crop Physiology, 1983, University of Missouri, Columbia

Positions Held

1975-1979 Undergraduate Research Assistant, Univ. of Wisconsin, Madison
1979-1983 Graduate Research Assistant, University of Missouri, Columbia
1983-1987 Assistant Professor, Agronomy Dept, Purdue University
1987-1992 Associate Professor, Agronomy Dept., Purdue University
1992-pres. Professor, Agronomy Dept., Purdue University
1992-pres. Assistant Head, Agronomy Dept., Purdue University

Membership in Professional Societies

American Society of Agronomy
Crop Science Society of America
American Society of Plant Physiologists
Sigma Xi
Gamma Sigma Delta
American Association for the Advancement of Science
Indiana Forage Council
American Forage and Grassland Council
Council for Agricultural Science and Technology

Extension/Technical Publications on Potassium

Li, R., B.C. Joern, and J.J. Volenec. 1995. Interaction of nitrogen and potassium nutrition on growth and root physiology of alfalfa. p. 10. In: Proc. Central Alfalfa Improvement Conf., June 18-20, 1995. Spearfish, SD.

Volenec, J.J., B.C. Joern, and S.M. Cunningham. 1999. Effects of potassium nutrition on carbohydrate and protein metabolism in alfalfa roots. p.77-82. In: Oosterhuis, D.M. and Berkowitz, G.A. (editors), Frontiers in Potassium Nutrition: New Perspectives on the Effects on Potassium on Physiology of Plants. CSSA Special Publ. Ref. No.#99061.

Berg, W.K., S.M. Cunningham, B.C. Joern, K.D. Johnson, S.M. Brouder, and J.J. Volenec. 1999. Potassium and phosphorus nutrition of alfalfa: a preliminary look at impact on yield components and root physiology. Better Crops No. 83:10-11.

Berg, W.K., J.J. Volenec, B.C. Joern, S.M. Cunningham, K.D. Johnson, and S.M. Brouder. 2000. Impact of potassium and phosphate nutrition on alfalfa yield components, forage quality and root physiology. p. 70 to 78, In: Proc. Iwate Univ. Workshop on Nutrient Use in Plant Ecosystems.

Berg W.K., S.M. Brouder, B.C. Joern, and J.J. Volenec. 2002. Enhancing alfalfa production through improved phosphorus and potassium management. North Central Extension-Industry Soil Fertility Conference Proceedings. pg 46-52.

Berg W.K., S.M. Brouder, B.C. Joern, and J.J. Volenec. 2002. Enhancing alfalfa production through improved phosphorus and potassium management. Eastern Canada Agronomy Workshop Proceedings.

Berg W.K., S.M. Brouder, K.D. Johnson, B.C. Joern, and J.J. Volenec. 2002. Phosphorus and potassium effects on alfalfa growth, nutrient accumulation, and persistence. 2002 Forage and Grassland Council National Meeting Proceedings. pg 76-79.

Berg W.K., S.M. Brouder, B.C. Joern, K.D. Johnson, and J.J. Volenec. 2003. Enhancing alfalfa production through improved potassium management. Better Crops. 87, 8-11.

Berg W.K., S.M. Brouder, B.C. Joern, K.D. Johnson, and J.J. Volenec. 2003. Improved phosphorus management enhances alfalfa production. Better Crops. 87:20-23.

Berg, W. K. , B. C. Joern, K. D. Johnson, S. M. Brouder and J.J. Volenec. 2003. Physiological Links of Growth Stage and Nutrient Needs - Alfalfa. Fluid Fertilizer Foundation. Scottsdale AZ. 20:27-35.

Berg, W.K., and J.J. Volenec. 2003. Not all alfalfa care thumbrules may be true. Hoard’s Dairyman 148:342.

Berg, W.K., and J.J. Volenec. 2003. Forage fertilizer algebra. Forage Diagnostic Training. Sept. 2003. 6 pp.

Berg, W.K., and J.J. Volenec. 2003. Improving phosphorus and potassium fertilizer efficiency of alfalfa. Purdue Hay Day, June 2003. 5 pp.

Refereed Journal Articles on Potassium

Li, R., J.J. Volenec, B.C. Joern, and S.M. Cunningham. 1996. Seasonal changes in nonstructural carbohydrates, protein, and macronutrients in roots of alfalfa, red clover, sweetclover, and birdsfoot trefoil. Crop Sci. 35:617-623.

Li, R., J.J. Volenec, B.C. Joern, and S.M. Cunningham. 1997. Effects of potassium and nitrogen nutrition on carbohydrate and protein metabolism in alfalfa roots. J. Plant Nutrition 20:511-529.

PowerPoint Presentations on Potassium

Potassium Nutrition of Alfalfa. Diagnostic Training Center. West Lafayette, IN, Sept. 2002.

Enhancing Alfalfa Production Through Improved Phosphorus and Potassium Management. PPI-sponsored Fertility Workshop, Ottawa, Canada, Nov. 2002.

Physiological Links of Growth Stage and Nutrient Needs: Alfalfa. Fluid Fertilizer Foundation. Scottsdale AZ, Feb. 2003.