| 摘要 |
PURPOSE:To remarkably reduce labor for cultivating operation by providing a construction for feeding a culture solution from a liquid feed pipe to a cultivation bed movable by rotation and stopping the liquid feed in rotation. CONSTITUTION:A cultivation bed (A) is provided with protruding parts 200 and horizontally movable. The protruding parts 200 contact and separate from a contact rod 140 by moving the cultivation bed (A). The contact rod 140 is lifted in contact with the protruding parts and lowered in separating therefrom. A piston 130 provided in the contact rod opens or closes a nozzle hole 111 when vertically moving the contact rod. The nozzle hole 111 communicates with the liquid feed pipe in opening thereof and interrupts communication in closing thereof. Thereby, when the nozzle hole 111 is opened, liquid feed can be carried out. When the nozzle hole is closed, the liquid feed is stopped. |
