This book has been designed to cover undergraduate syllabus of Organic Farming as per ICAR 5th Deans Committee report. It covers the entire syllabus in one compact volume of 11 chapters viz. introduction of organic farming, principles of organic farming, concept of organic farming, certification, labelling and accreditation process, soil improvement and amendments, weed management in organic farming, organic manure, vermicompost, integrated disease and pest management, marketing and exports of organic products and biopesticides. Related terms have been provided at the end for the ready reference of readers. The present book has been recommended as a core subject in the curriculum of B.Sc. (Agriculture) course of the agricultural universities. This book would be immensely useful to students, teachers, researchers, progressive farmers and extension workers working in the field of crop science, agronomy and organic farming.