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Not AvailableMost of the crop residues, agro-industrial wastes and agricultural by-products create management problems to farmers in agronomic practices in fields. If these materials, will convert into biochar by pyrolysis technique, then it may be a significant opportunity for maintaining soil health as well as crop productivity. Biochar positively affect the physical, chemical and biological properties of soil, but, effects were varied from soil to soil. Physical and chemical characteristics of biochar depend upon types of feed stocks and pyrolysis conditions. Biochar production on a large scale is a major constraint in adoption of this technology, because of non- existence of any sustainable technology. There is need of future research for promoting the use of biochar on large scale. It is essential to make low-cost and eco-friendly production unit of biochar fo r farmers to exploit potential of biochar.Not Availabl