This edited book deals with latest comprehensive information on conventional and high throughput techniques and technologies that are recently used to study plant microbial interface for agricultural research and enhancing plant productivity. Plant microbiota are important for many plant growth promotion activity and agricultural productivity and are sustainable green technology for enhancing agricultural productivity under changing environment. The book covers recent information about the plant associated microbiota and their ecology. It discusses technologies to isolate and test microbiota inhabiting in different portion of plants. The book explores the conventional methods as well as the most recently recognized high throughput technologies which are important for productive agroecosystems to feed the growing global population. This book is of interest to teachers, researchers, microbiologist, plant and environmental scientist and those interested in environment stewardship around the world. Also the book serves as additional reading material for undergraduate and graduate students of agriculture, forestry, ecology, soil science, and environmental sciences and policy makers to be a useful to read.