PROBLEM TO BE SOLVED: To provide a hydroponic device, while keeping an initial capital investment cost and running costs to be lower, capable of feeding suitable nutrient liquid to plants at different growing stages or different kinds of plants in each of cultivation beds, and not expanding disease as much as possible even if the disease infests the plants.SOLUTION: This hydroponic device having cultivation beds 1, flowing solution 3 from rear to front and having a float plate 2 on the solution 3 is provided by forming a water-discharging part 4 for discharging the solution 3 and falling it down at the front part, further installing a falling water-receiving part 5 for receiving the falling down solution 3, installing a circulation pump 6 for pumping up the water at the bottom part of the water-receiving part 5 and sending it to rear direction, a pipe 7 connected with the circulation pump 6, and an ejection port 8 at the tip end of the pipe for discharging the solution 3 at the inside of rear part of the cultivation beds 1. A solution circulating device consisting of the water-discharging part 4, falling water-receiving part 5, circulation pump 6, pipe 7 and ejection port 8 is provided for each of the cultivation beds 1.COPYRIGHT: (C)2013,JPO&INPIT【課題】初期設備投資費用、ランニングコストを低廉に抑えつつ、栽培ベッド毎に異なる生育段階にある植物や異なる種類の植物に適宜の養液を供給することが可能であって、仮に植物に病気が発生した場合であっても、できるだけ病気が拡大しない水耕栽培装置の提供。【解決手段】後方より前方に溶液3を流すと共に溶液3上にフロート板2を敷設した栽培ベッド1において、前部に溶液3を排出して落下させる排水部4を形成し、さらに落下した溶液3を受ける落下水受け部5を設け、落下水受け部5の底部の水を汲み上げて後方に送水する循環ポンプ6及び循環ポンプ6に連結したパイプ7を設けると共に栽培ベッド1後部内側において溶液3を排出するパイプ先端の吐出口8を設け、前記排水部4、落下水受け部5、循環ポンプ6、パイプ7、吐出口8からなる溶液循環装置を、栽培ベッド1毎に別個に設けた水耕栽培装置。【選択図】図1
