“…As a result, combining biochar with vermicompost may be a potential way to reducing N which is another type of OA, can help to enhance soil structure and nutrient availability to growing crops, reducing the demand for mineral fertilizer and thereby lowering GHG emissions [85]. Green manure crops such as Cowpea, Sesbania, Azzola, and Mungbean had a high ability to reduce N 2 O in rice fields [86]. Because of the gradual release of nitrogen from decaying green manure residue, plant uptake efficiency and crop production can be better aligned, while N leaching losses are decreased.…”