Dr. Hassan Etesami is a research scientist with 20 years of research experience in soil biology and biotechnology, and obtained his doctor’s degree from the Department of Soil Science, University College of Agriculture & Natural Resources, University of Tehran, Iran. He has a special interest in developing biofertilizer and biocontrol agents that meet farmers’ expectations. He has coauthored over 120 publications in different areas including biofertilizers and biocontrol. Currently, he focuses on using of PGPR, AMF and Silicon to alleviate environmental stresses in plants. Presently, he is in the faculty of the Department of Soil Science at the University of Tehran, Iran.