Authors and topics confirmed, but exact titles not finalized
What are key issues in human and animal potassium nutrition? Michael Stone & Connie Weaver, Purdue University
What can long-term research experiments teach us about potassium management? Keith Goulding, Rothamstead Resesarch, U.K.
What conditions favor loss of bioavailable potassium and how much is lost? Marta Alfaro, National Institute of Agriculture, Chile
How do potassium inputs and outputs compare for different cropping systems and geopolitical boundaries? Kaushik Majumdar, IPNI Vice President
How and to what extent does potassium affect use efficiency of water, energy, and other nutrients? Jeff Volenec, Purdue Univ. How and to what extent does potassium mitigate biotic and abiotic stresses on plants? Ismael Cakmak, Sabanci University, Turkey
What are the lifetimes of the various global reserves of potassium? Michael Rahm, Vice President, Mosaic Co.
How are crops impacted by the choice of potassium source? Robert Mikkelsen, IPNI Vice President
How can we improve the quantification of plant-available potassium in the soil? Sylvie Brouder, Purdue University
How can factors influencing soil potassium acquisition by crop roots be used to improve potassium rate recommendations? John Kovar, USDA, Agric. Research Service How can recognition of multiple soil potassium pools with dissimilar access among crop species be used to improve potassium rate recommendations? Michael Bell, University of Queensland, Australia
How can resins be utilized to improve potassium rate recommendations? Heitor Cantarella, Agronomic Institute of Campinas, Brazil
How can cycling of potassium from crop and other organic residues be integrated into potassium rate recommendations? Ciro Rosolem, Sao Paulo University, Brazil How closely is potassium mass balance related to soil test changes? Dave Franzen, North Dakota State University
How do mineralogy and soil chemistry impact how closely potassium soil test changes are related to mass balance? Michel Ransom, Kansas State University
Why and to what extent do various crops differ in their recovery efficiency of potassium? Zed Rengel, University of Western Australia
What are the genetic effects on potassium uptake and plant metabolism? Philip White, James Hutton Institute, UK
How can potassium be managed to improve the synchrony of soil supply and plant demand? Still being confirmed
What is the potassium recovery efficiency of the cropping system as a whole, considering the crops grown and when applications are made? Still being confirmed
About the Author: Dr. T. Scott Murrell is Principal Scientist for the African Plant Nutrition Institute in Ben Guerir, Morocco. He is also an adjunct faculty member at both Purdue University and Mohammed VI Polytechnic University, and Fellow of the American Society of Agronomy. Previously, he was the Potassium Program Director for the International Plant Nutrition Institute after serving as the Northcentral Director of the Potash & Phosphate Institute. He has spent much of his career synthesizing scientific research to create educational products and programs that facilitate adoption of improved crop nutrient management practices. He has also designed multi-country experiments and the common research protocols and data standards needed to operationalize them. He received his Master of Science in Soil Fertility at Purdue University and his PhD in Soil Science at Texas A&M University.
Dr. Robert L. Mikkelsen is currently the Director of Communications for the African Plant Nutrition Institute. Prior to this position, he served as Vice President and Director for the International Plant Nutrition Institute. Dr. Mikkelsen was previously a Professor of Soil Science at North Carolina State University and also worked as a Research Scientist with the Tennessee Valley Authority at the National Fertilizer Development Center. Dr. Mikkelsen earned his B.S. degree from Brigham Young University and his Ph.D. degree in Soil Science from the University of California. Dr. Mikkelsen has received teaching awards and multiple professional awards from leading scientific organizations in soil science, agronomy, and horticulture.
Gavin Sulewski is editor for the African Plant Nutrition Institute (APNI). Prior to joining APNI, he served as editor (2011-2019) for the International Plant Nutrition Institute (IPNI) and its quarterly magazine Better Crops with Plant Food. Previously he worked as an agronomist for both IPNI and its predecessor the Potash & Phosphate Institute (1996-2011). Within these institutes he has spent his career collaborating with agricultural scientists on the development of educational information and resources for the benefit of international agriculture. He obtained his B.Sc. in Agronomy and M.Sc. in Soil Science from the University of Saskatchewan, Canada.
Dr Robert Norton holds agriculture and education qualifications and a PhD in crop agronomy. He managed and delivered research and education programs at Longerenong Agricultural College and The University of Melbourne (1981-2009), including large collaborative projects on crop adaptation, plant nutrition, climate change and grains agronomy. He was the Regional Director (Australia and New Zealand) for the International Plant Nutrition Institute (2009-2017) and now undertakes national and international consultancies in soil science and plant nutrition. He is the author of 150 refereed book chapters, journal and conference papers as well as another 350 conference and extension articles.
Dr. Michael L. Thompson is a professor in the Agronomy Department at Iowa State University in Ames, Iowa, USA. With a BS from University of Illinois (1974) and a PhD from Ohio State University (1980), he has taught courses in soil genesis, clay mineralogy, micromorphology, soil-plant relationships, organic chemistry, soil and water chemistry, and ethics in science. His research program centers on soil processes that favor stability, transformations, and movement of nutrients, organic matter, and anthropogenic contaminants in soils. He is a fellow of the Soil Science Society of America, the American Society of Agronomy, and the American Association for the Advancement of Science.
