Waste Management From Agricultural Field

Abstract

Prioritizing the 4Rs of reduce, reuse, recycle, and recover offers the most effective waste management approach. Several ideas to utilize agricultural wastes include biogas production, biochar production, composting, supplementary feed for animal and eco-friendly material construction. Biogas which is a renewable fuel and is produced by anaerobic fermentation of organic matter. It is primarily composed of methane, the key component of natural gas, along with carbon dioxide and trace amounts of other gases. Biochar is the process in which crop residues can be reborn through pyrolysis or other processes. This valuable soil amendment enhances fertility, water retention, and nutrient holding capacity. Composting with crop residues has a long history. Traditionally, farmers pile leftover crops in dung pits, where they decompose and become a valuable resource. The by-products produced from agricultural waste can be used as supplement to animal feed. Agricultural waste can also be used in making eco-friendly building materials such as bricks, panels, etc.