| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydroponic device capable of suppressing spread of a disease occurring in a plant body into another plant body.SOLUTION: A hydroponic device includes: at least cultivation tanks 30A and 30B for growing a plant body 100; a plurality of plant support parts 7A and 7B for supporting the plant body 100; a plurality of nutritious liquid supply parts 3A and 3B for supplying a nutritious liquid; a plurality of first opening/closing valves 4A and 4B; a plurality of nutritious liquid discharge parts 5A and 5B for discharging the nutritious liquid; a plurality of second opening/closing valves 6A and 6B; a plurality of pH value detection parts 8A and 8B for detecting a pH value of the nutritious liquid 110; a container part 20 for storing the nutritious liquid discharged from the nutritious liquid discharge parts 5A and 5B; nutritious liquid circulation parts 2A and 2B for supplying the nutritious liquid from the container part 20; and a control part for controlling the opening/closing operation of the first opening/closing valves 4A and 4B and the second opening/closing valves 6A and 6B according to the pH value detected by the pH value detection parts 8A and 8B. |
