PROBLEM TO BE SOLVED: To provide a bed for nutriculture capable of appropriately adjusting water content and temperature in solid culture medium, and improving yield of plant.SOLUTION: Moisture vapor permeability of a cover sheet for housing a nutritious liquid holding body (solid culture medium) of bed for nutriculture is adjusted to 500 g/(m24 hours) or more, and a region having less than 90% of reflective index in a visible light region is formed in the sheet. The cover sheet may include a moisture-permeable waterproof sheet having 500 g/(m24 hours) or more of moisture vapor permeability and 1 kPa or more of waterproof pressure. The moisture-permeable waterproof sheet may include: a porous layer which includes polyethylene-based resin and has 0.1 to 15 μm of an average pore diameter and 10 to 100 μm of an average thickness； and a reinforcing layer which includes long-fiber nonwoven fabric and has 10 to 100 g/mof fabric weight.SELECTED DRAWING: None【課題】固形状培地内の水分及び温度を適度に調整でき、かつ植物の収穫量も向上できる養液栽培用ベットを提供する。【解決手段】養液栽培用ベットの養液保持体（固形培地）を収容するためのカバーシートの透湿度５００ｇ／（ｍ２・２４時間）以上に調整し、かつ可視光域の反射率が９０％未満の領域を形成する。このカバーシートは、透湿度が５００ｇ／（ｍ２・２４時間）以上であり、かつ防水圧は１ｋＰａ以上の透湿防水シートを含んでいてもよい。前記透湿防水シートは、ポリエチレン系樹脂を含み、かつ０．１～１５μｍの平均孔径及び１０～１００μｍの平均厚みを有する多孔質層と、長繊維不織布を含み、かつ１０～１００ｇ／ｍ２の目付を有する補強層とを含んでいてもよい。【選択図】なし
