| 摘要 |
PURPOSE:To provide a hydroponic culture device capable of sufficiently supply ing roots of a plant with oxygen and promoting growth of the plant simply at a low cost. CONSTITUTION:This hydroponic culture device 10 has a bed 12 and setting panels 36 which retain sowed plants P and is set at the upper part of the bed 12 and a culture solution L is stored in the bed 12 so that roots of the plants P retained by the setting panels 36 are immersed in the culture solution. An ebb and flow tank 16 is formed at one end side of the bed 12 in the longer direction and an ebb and flow wave forming material 84 of a rectangular parrallelepiped is arranged on the ebb and flow tank 16. In this case, a revolving shaft 60 having a male screw part is rotated by driving a motor 88 through pulleys 90 and 86 and a belt 92 and a socket member 74 having a female screw part 75 is vertically moved by the rotation. The ebb and flow wave forming material 84 attached to a rise and fall plate 72 is periodically taken in and out from the ebb and flow tank 16 with vertical movement of the socket member 74. |
