Dr. Tongmin Sa?is a Professor of Agricultural Chemistry at Chungbuk National University, South Korea and a Full Member of?the Korean Academy of Science & Technology (KAST). He has served as the President of The Korean Society of Soil Science & Fertilizer (KSSSF), Vice President of the International Scientific Center for Fertilizer (CIEC, Asia), and the Dean of the College of Agriculture, Life and Environmental Sciences, Chungbuk National University. He has written 26 book and book chapters and published over 360 articles in prestigious journals. He obtained his doctoral degree major in Plant Physiology/Microbiology from the Department of Soil Science, North Carolina State University. He collaborates with international scientists in studying the microbial community profiles associated with major food crops grown around the globe. This will enable the global scientific community to understand the effect of eco-geographical distribution of plant-microbiome and engineer efficient bioinoculants for better crop productivity.