Organic farming:- Organic farming is a technique of growing crops and rearing of livestocks naturally. It means that it focuses on the use of biological materials such as organic manure, green manure, farmyard manure, etc to produce agricultural products and avoid the use of synthetic chemical fertilizers to maintain soil fertility and ecological balance thereby reducing pollution and westage. According to USDA(United State department of agriculture), it is a system which avoid or largely excludes the use of synthetic inputs such as chemical fertilizers, pesticides, herbicides, plants hormone, etc and to the maximum extent depend upon crop rotation, crop residue, animal manure and biological system of nutrients mobilization and plant protection. According to FAO, "organic farming is an unique production management system which promotes and enhances agro ecosystem health including Bio-diversity, biological cycles and soil biological activities and this is accomplished by using...