Biofertilizers are important components of integrated nutrient management. They are cost effective, ecofriendly and a renewable source of plant nutrients to supplement chemical fertilizers in sustainable agricultural systems in India. This book is written with the objective of improvement of tree legumes using bioinoculants. This book provides in-depth coverage of Rhizobium and AM fungi interaction, tree legumes and impact of supplemental inorganic fertilizers. It examines the role of microbes in growth promotion, bioprotectors, bioremediators and presents protocols and practical strategies for using microbes in sustainable agriculture. An abundance of helpful charts, tables, and figures make complex information easy to access and understand. This book also explains the important issues surrounding microbial biofertilizers, including: the Rhizobium-host-arbuscular mycorrhizal" tripartite relationship, mycorrhiza as a nutrient mobilizers, soil fertility enhancers and stress reducers. The use of biofertilizers is already growing rapidly. This book is designed for the information needs of current and future biotechnologists, microbiologists, botanists, agronomists, environmentalists.