Principles of Organic Farming is a practical oriented text to organic crop management that provides background information as well as details of ecology-improving practices. This book is meant to give the reader a holistic appreciation of the principles and importance of organic farming and to suggest ecologically sound practices that help to develop and maintain sustainable agriculture. This book represents a current and updated look at what we know about organic farming practices and systems, primarily from the Indian perspectives. This book is intended as a professional basic textbook for undergraduate level students and will specifically meet out the requirement of the students of organic farming being taught in all the agricultural universities across the globe. In addition, the purpose of this work is to spread the basic concepts of organic farming in order to; guide the production systems towards a sustainable agriculture and ecologically safe, obtain harmless products of higher quality, contribute to food security, generating income through the access to markets and improve working conditions of farmers and their neighborhoods. This book provides attention of one and all concerned to promote organic farming as a measure to provide the elites to posterity and to save our farm land that inherited from forefathers from being degraded and made in to wastelands through our excessive interventions.