This book is intended .is a professional basic text book for under graduate level students of organic farming. At the post graduate level also it will be very useful for students of agriculture in particular and fanning system. In addition the text book will be a valuable reference on farming system for the candidates appearing in competitive examinations including agricultural research services. The text book covers concepts and relevance of organic farming in present context. organic manures, vermi-eomposting. green maturing, re-cycling of organic residues, biofemliiers, soil improvements and amendments, sustainable agriculture and integrated farming system. It Is a comprehensive bask text book on integrated farming system and will specifically meet out the requirements of the students of agronomy courses being taught at the university.