Dr Zed Rengel is Professor of Soil Science and Plant Nutrition at the University of Western Australia. An internationally-renowned expert on plant nutrition, Professor Rengel is co Editor-in-Chief of Crop and Pasture Science, Editor of the Journal of Plant Nutrition, Associate Editor of the Journal of Plant Physiology, as well as being on the editorial board of several other journals. He has published 7 books and more than 400 articles, has held a number of Honorary and Visiting Professorships and been elected a Foreign Fellow of the Croatian Academy of Arts and Sciences. His h-index is 85 (Google Scholar) or 64 (Clarivate Analytics All Databases, Web of Science). John Angus graduated B. Agr. Sc. and PhD from the University of Melbourne. He worked as a Research Scientist at CSIRO Canberra from 1973 until 2010, with visiting scientist positions at the International Rice Research Institute and the Swedish University of Agricultural Science along the way. After retirement he remains an honorary fellow at CSIRO and is also an adjunct professor at Charles Sturt University in Wagga Wagga. He is a fellow of the Australian and American Societies of Agronomy and has served as President of the Agronomy Australia. He was the 2006 recipient of the Australian Medal of Agricultural Science and the 2019 recipient of the Colin Donald medal of Agronomy Australia. Bryan G. Hopkins is a Professor at Brigham Young University and a Certified Professional Soil Scientist. He is the Coordinator for the Soil Science Society of America--North American Proficiency Testing Program. He has degrees from Ricks College, Brigham Young University, and Kansas State University in Agronomy & Horticulture with specialties in soil biophysical chemistry and plant nutrition. He has published dozens of peer reviewed manuscripts and book chapters and hundreds of research reports and given countless presentations. Dr Asher Bar-Tal is a Senior Researcher at the Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO, the Volcani Center) of Israel. In 1987 he earned Ph.D. from The Hebrew University of Jerusalem. From 2011 to 2013 he served as the Chairman of the Department of Soil Chemistry, Plant Nutrition and Microbiology, Institute of Soil, Water and Environmental Sciences, The Volcani Center, ARO. Dr Bar-Tal currently serves as the president of the Israeli Society of Soil Science. His research interests focus on soil chemistry, plant nutrition and fertilization of crops. John Angus graduated B. Agr. Sc. and PhD from the University of Melbourne. He worked as a Research Scientist at CSIRO Canberra from 1973 until 2010, with visiting scientist positions at the International Rice Research Institute and the Swedish University of Agricultural Science along the way. After retirement he remains an honorary fellow at CSIRO and is also an adjunct professor at Charles Sturt University in Wagga Wagga. He is a fellow of the Australian and American Societies of Agronomy and has served as President of the Agronomy Australia. He was the 2006 recipient of the Australian Medal of Agricultural Science and the 2019 recipient of the Colin Donald medal of Agronomy Australia. Bryan G. Hopkins is a Professor at Brigham Young University and a Certified Professional Soil Scientist. He is the Coordinator for the Soil Science Society of America--North American Proficiency Testing Program. He has degrees from Ricks College, Brigham Young University, and Kansas State University in Agronomy & Horticulture with specialties in soil biophysical chemistry and plant nutrition. He has published dozens of peer reviewed manuscripts and book chapters and hundreds of research reports and given countless presentations. Dr Asher Bar-Tal is a Senior Researcher at the Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO, the Volcani Center) of Israel. In 1987 he earned Ph.D. from The Hebrew University of Jerusalem. From 2011 to 2013 he served as the Chairman of the Department of Soil Chemistry, Plant Nutrition and Microbiology, Institute of Soil, Water and Environmental Sciences, The Volcani Center, ARO. Dr Bar-Tal currently serves as the president of the Israeli Society of Soil Science. His research interests focus on soil chemistry, plant nutrition and fertilization of crops.
