PROBLEM TO BE SOLVED: To provide a cultivation bed for effectively blocking the light to a liquid surface, preventing massive generation of algae in a liquid, and hardly damaging the root of a seedling.SOLUTION: A cultivation bed 100 includes: a first projecting portion 9 projecting from a side surface 1 provided on a side surface 3 and a side surface 6 to a predetermined thickness among the thicknesses of the cultivation bed 100 a second projecting portion 11 provided in the periphery of a side surface 10 and projecting from a second surface to a thickness except for a predetermined thickness among the thicknesses of the cultivation bed 100 a notch 12 provided in a recessed part 4 and penetrating the cultivation bed 100 a third projecting portion 14 provided in the periphery of the recessed part 4 and a projecting part 5 of a side surface 13 and projecting from a first surface 1 to a predetermined thickness among the thicknesses of the cultivation bed 100 and a fourth projecting portion 16 provided in the periphery of the recessed part 4 and the projecting part 5 of a side surface 15 and projecting from the second surface to the thickness except for a predetermined thickness among the thicknesses of the cultivation bed 100.COPYRIGHT: (C)2014,JPO&INPIT【課題】液面への光を効果的に遮断して、液内への藻の大量発生を防止すると共に、苗の根を痛め難い栽培床を提供する。【解決手段】側面3と側面6に設けられた側面1から栽培床100の厚さのうち所定の厚さまで突出した第一突出部分9と、側面10の周囲に設けられた、第二表面から栽培床100の厚さのうち所定の厚さを除いた厚さまで突出した第二突出部分11と、凹部4に設けられた栽培床100を貫通する切り欠き部12と、側面13の凹部4と凸部5の周囲に設けられた、第一表面1から栽培床100の厚さのうち所定の厚さまで突出した第三突出部分14と、側面15の凹部4と凸部5の周囲に設けられた、第二表面から栽培床100の厚さのうち所定の厚さを除いた厚さまで突出した第四突出部分16と、を有する栽培床100である。【選択図】図1
