Renato de Mello Prado, holds a PhD in Agronomy from São Paulo State University (UNESP), Brazil and did his post-doctorate in Plant Nutrition at Universidad Córdoba, Spain and at Universidad Pública de Navarra, Spain. He is currently Professor at UNESP in Undergraduate and Graduate Studies (Plant Production / Soil Science), CNPq (National Council for Scientific and Technological Development, Brazil) researcher and collaborator in other national and international universities. Supervised and co-supervised more than one hundred master's and doctoral students and more than thirty post-doctors. He has experience in plant nutrition, working in the teaching of the discipline and in the coordination of the Study Group on Plant Nutrition at Unesp (Genplant), which addresses the topics: studies of nutritional disorders, nutrient mobility, leaf nutrition, nutritional efficiency, silicon, leaf diagnosis and nutrition of different cultures. Published more than five hundred scientific articles in indexed journals.Hassan Etesami is an Associate Professor at University of Tehran, Iran. He received a PhD degree in Soil Biology and Biotechnology from University of Tehran, Iran and he has published over 100 peer-reviewed journal articles, according to Scopus database. His research area are microbial ecology, plant-microbe interactions, biofertilizers, integrated management of abiotic stresses, and bioremediation. Dr. Etesami is exploring the mechanisms by which microorganisms (bacteria and fungi) (and their interaction with silicon and biochar) can improve plant tolerance to various environmental stresses mainly salinity, drought and heavy metal stress.A.K. Srivastava received his M.Sc.(Ag) and Ph.D in Soil Science from Banaras Hindu University, and is currently a Principal Scientist (Soil Science) at ICAR-Central Citrus Research Institute. He has extensively pursued research work on different aspects of citrus nutrition like nutrient constraints analysis of citrus orchards by developing DRIS-based soil-plant nutrient diagnostics, orchard efficiency modeling, targeted yield-based site specific nutrient management exploiting spatial variability in soil fertility, citrus rhizosphere specific microbial consortium and soil carbon loading, INM module, fertigation scheduling, nutrient mapping using geospatial tools, nutrient dynamic studies, transformation of soil microbial biomass nutrients within citrus rhizosphere and soil fertility map as decision support tool for fertilizer recommendation.
