Asst. Prof. Dr. Kritchaya Issakul is a Lecturer in the School of Energy and Environment, University of Phayao, Thailand. He earned his Ph.D. in Agricultural Sciences from the University of Göttingen, Germany, in 2007. His academic training and professional experience focus on the application of natural products and biological resources for sustainable and environmentally friendly agriculture. His research interests include natural product utilization, soil–plant–microbe interactions, microbial-based soil amendments, and sustainable crop production systems. He is actively involved in both teaching and research in agricultural and environmental sciences, with a particular emphasis on developing biologically based approaches to improve soil fertility and crop performance.