| 摘要 |
PROBLEM TO BE SOLVED: To provide a new apparatus for nutritive culture by considering roots of a plant for its own standing and roots for absorption of nutrient, making the optimum environment suitable for the function of the roots, not causing oxygen deficiency of a plant, making a plant strong in change of water temperature and change of concentration of acid and alkali, high in standing properties. SOLUTION: This apparatus for nutritive culture is equipped with current water parts 5 arranging channel-type members 2 having sidewalls different in height in parallel while making a lower wall exist inside, a water storage part 7 for storing water dropped from water falling parts 6 laid at the downstream side of the current water parts 5, watering cloths 8 covering the tops of low walls of the channel-type members 2 and partially immersed in the current water parts 5, a roof plate 9 hung between the tops of high walls of the channel-shaped members 2 and having through holes for setting a solid medium on the watering cloths 8 covering the top of the low walls and a circulating device 12 for returning water drawn up from the water storage parts 7 to the upstream side of the current water parts 5. |
