PROBLEM TO BE SOLVED: To provide a novel artificial soil which makes it possible to grow plants favorably without using a chemical fertilizer.SOLUTION: An artificial soil contains a polyvinyl acetal resin porous body.COPYRIGHT: (C)2014,JPO&INPIT【課題】化学肥料を使用しなくても植物の生育に優れる新規人工土壌を提供する。【解決手段】ポリビニルアセタール樹脂多孔質体を含有する人工土壌。【選択図】図1