Prof. Dr. Luit J. De Kok, born May 12, 1952 in Scheemda, The Netherlands; MSc and PhD in Plant Physiology at the University of Groningen, The Netherlands. Associate Professor at the Laboratory of Plant Physiology, University of Groningen. Honorary Principal Fellow, Department of Forest and Ecosystem Science, Creswick, University of Melbourne, Australia (2006-2016); Vice President of the International Scientific Centre of Fertilizers (CIEC) in Shenyang, P.R. China.