| 摘要 |
PROBLEM TO BE SOLVED: To obtain a plant-soaking apparatus that facilitate the immersion of plant- growing panels into the soaking solution by constituting the plant-soaking apparatus with the plant-growing panel that is floated on the liquid surface in the tank filled with the plant-soaking solution, the liquid feeder that feeds the soaking solution into the tank for raising the liquid surface and contrarily takes out the soaking solution from the tank to lower the liquid surface, and a specific locking device. SOLUTION: This plant body-soaking unit comprises a tank filled with the soaking solution, the plant-growing panel 3 that is floated on the liquid surface in the tank, the unit that feeds and takes out the soaking liquid into or out of the tank and the locking unit that locks the plant panel 3 that come down together with the liquid face to the prescribed position of a certain depth so that the panel may not float up. In addition, a tank filled with the soaking solution, the plant-growing panel that can freely lift and sink in this tank and has a vacant room inside, and an apparatus for selectively exchange this vacant room with the liquid and the air and the plant- growing panel is adjusted its weight so that it may float on the liquid face in the vacant room, when the vacant room is filled with the air, and sink down, when the liquid is replaced. |
