This book entitled “Fundamentals of Biofertilizers” has been created to provide the readers with a concise but comprehensive account of all the issues pertaining to biofertilizers and certain aspects of organic farming. The basic contents of the book include – plant growth and nutrition biofertilizers different microbial associations production of inoculum organic farming green manure compost production techniques and recycling of waste. The book may serve as a valuable source of information for all sections of the society.