PROBLEM TO BE SOLVED: To provide a method for storing a soil or the like that is a raw material for production of a culture soil used in farming. gardening and the like, which prevents generation of mold and moss and can also suppress generation of weed, by a light-shielding sheet having waterproofness and air permeability.SOLUTION: A light-shielding sheet is formed by laminating a porous polyolefin sheet (A) containing a light-shielding pigment on a moisture-permeable waterproof sheet (B) having moisture vapor permeability of 100 g/m2 24hr or more. A method for storing a culture soil using the light-shielding sheet can suppress generation of mold and moss and generation of weed in the culture soil for a long period of time.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】防水性、透気性を有する遮光性シートにより、カビやコケの発生を防ぎ、かつ雑草の発生も抑えることができる稲作や園芸用等で用いられる培土の製造の原料である土壌等を保管する方法を提供すること。【解決手段】透湿度が100g/m2・24hr以上の透湿防水シート(B)に遮光性の顔料を含む多孔質ポリオレフィンシート(A)を積層させた遮光性シート。この遮光性シートを用いた培土の保管方法により、培土を長期間、カビ、コケの発生、及び、雑草の発生を抑えることができる。【選択図】なし
