PROBLEM TO BE SOLVED: To provide a hydroponic apparatus and a hydroponic method in which cultivation is carried out while movably floating a cultivation bed on a culture solution, and a root of a cultivated product can ingest nutrients and oxygen dissolved in the culture solution, and furthermore, oxygen can be directly taken from the contact air, and the cultivation bed can be repeatedly used by cutting irradiation of cultivation light to the culture solution and eliminating propagation of algae.SOLUTION: The hydroponic apparatus includes: a cultivation tank 10 for storing the culture solution while maintaining a required liquid depth culture solution supply management means 20 for supplying a culture solution into the cultivation tank 10 air supply means 30 for supplying air into the culture solution and a cultivation bed 40 having a fix planting hole 41a, holding a root base by inserting a root of a cultivated product P through the fix planting hole 41a, and floating on the culture solution in the cultivation tank 10. The cultivating bed 40 has: a fix planting member 41 having a settling hole 41a and a floating part 42 provided on the lower surface of the planting member 41. During cultivation, the upper part of the root floats in a state of contacting the air, and the hydroponic apparatus is a continuous body of a connection structure during the cultivation, in which, cultivation light irradiating the liquid surface of the culture solution is shielded.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】栽培床を移動容易に培養液に浮かべて栽培し、栽培物の根が、培養液中に溶存する養分と酸素を摂取できさらに接触空気から酸素を直接摂取でき、栽培光の培養液への照射をカットし藻の繁殖を無くして栽培床の反復使用が可能である水耕栽培装置および水耕栽培方法を提供すること。【解決手段】所要の液深を保って培養液を貯留する栽培槽10と、栽培槽10内に培養液を供給する培養液供給管理手段20と、培養液中に空気を供給する空気供給手段30と、定植孔41aを有し、定植孔41aに栽培物Pの根を挿通して根基部を保持し栽培槽10内の培養液に浮かぶ栽培床40と、を備え、栽培床40は、定植孔41aを有する定植部材41と、定植部材41の下面に設けられた浮子部42とを有し、栽培中は、根の上部が空気に接触する状態に浮かび、かつ、培養液の液面に照射する栽培光を遮蔽する状態になる栽培中において接続構造の連続体である。【選択図】図1
