Microbes are a good indicator of soil health. Plant growth-promoting microbes protect plants from the stresses of water, salt, metal, biotic, etc. and they are well known for strategically modulating the plant mechanisms to defend and mitigate environmental stresses. Taking a multidisciplinary approach, this volume explores the role of plant microbes in ecological and agricultural revitalization beyond normal agriculture practices and offers practical and applied solutions for the restoration of degraded lands to fulfill human needs with food, fodder, fuel and fiber. Provides a single comprehensive platform for soil scientist, agriculture specialists, ecologists, and related disciplines.