under the Indian Council of Agricultural Research, New Delhi. He received his M.Sc. in 2010 from IARI, New Delhi along with a gold medal for his outstanding contribution. He joined the Agricultural Research Service (ARS) in 2011 as a scientist. He completed his Ph.D in 2020 from Visva Bharati University in Soil Science and Agricultural Chemistry and worked on integrated organic nutrient management. He has published 27 national and 40 international research articles, 10 review articles in national and international journals, 30 popular articles, 28 extension folders, 2 books, and 25 book chapters in edited books. He received a DST-INSPIRE fellowship in 2010 from DST, Govt. of India. He has been awarded the best scientist award by the ICAR RC for the NEH Region, Umiam, Meghalaya in 2018. He received six young scientist awards and 3 best oral presentation awards from different reputable societies. He was the Principal Investigator (PI) of different externally funded projects like DST, DBT, NMHS, ICAR etc. He has been involved in the research on carbon sequestration, soil fertility management, soil acidity reclamation, and organic nutrient standardization of major hill crops. Contents Preface XIII Section 1 Organic Farming Chapter 1 Role of Organic Farming in Agriculture Section 1