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가축분에 몇가지 석회 화합물 처리에 의한 질소손실 경감과 NH<sub>3</sub> 가스 발생 감소에 미치는 영향
朴昶圭 ( Park Chang - Kyu ),梁莊錫 ( Yang Jang - Souck ),趙光來 ( Cho Kwang - Rae ),元善伊 ( Won Seon - Yi ) 한국유기농업학회 2000 韓國有機農業學會誌 Vol.8 No.2
To reduce loss of nitrgen and generation of ammonia gas during composting, poultry manure and sawdust were mixed at the equivalent ratio and calcium chloride, fused superphosphate and vermiculite were added. Ammonia and sulfurous gas during composting, and NH<sub>4</sub>-N and NO<sub>3</sub>-N contents of composts were periodically measured. With the treatments of 0.5~3% calcium chloride and 3% fused superphosphate, ammonia and sulfurous gas during composting significantly decreased, and especially generation of gases sharply reduced and a increase of calcium chlorde. Extractable NH<sub>4</sub>-N content in composts treated with calcium chloride and fused superphosphate were high but extractable NO<sub>3</sub>-N markedly decreased. In conclusion, the results suggest that it is necessary the additon of 1~3% calcium chloride or 3% fused superphosphate to reduce loss of nirogen and generation of offensive odor during composting of poultry manure mixed with sawdust.