PROBLEM TO BE SOLVED: To provide a method for applying a soil-conditioning material, which does not inhibit the growth of plants such as field crops, when saccharification residues or distillation residues obtained in an ethanol-producing process are used as the soil-conditioning material.SOLUTION: The method for applying the soil-conditioning material, comprising separating saccharification residues contained in a saccharification solution, recovering distillation residues left after distilling a fermentation solution, and applying the saccharification residues or the distillation residues to soil as the soil-conditioning material, when saccharifying a substrate comprising a biomass with a saccharification enzyme, fermenting the obtained saccharification solution to obtain a fermentation solution, and then distilling the fermentation solution to produce ethanol, is characterized by keeping the soil in an oxidization state for an effective accumulated temperature of 20-1,500°C/day, after the application of the soil-conditioning material.COPYRIGHT: (C)2012,JPO&INPIT【課題】エタノール製造過程で得られる糖化残渣又は蒸留残液を土壌改良材として用いるときに、農作物等の植物の生育を阻害することのない施用方法を提供する。【解決手段】バイオマスからなる基質を糖化酵素により糖化処理し、得られた糖化溶液を発酵処理して発酵溶液を得た後、発酵溶液を蒸留してエタノールを製造するときに、糖化溶液に含まれる糖化残渣を分離すると共に、発酵溶液の蒸留後に残された蒸留残液を回収し、糖化残渣又は蒸留残液を土壌改良材として土壌に施用する。前記土壌改良材を施用した後、20~1500℃日の有効積算温度の間、土壌を酸化状態に維持する。【選択図】 図1
