| 摘要 |
PROBLEM TO BE SOLVED: To improve practicability of a plant cultivation system that cultivates plants inside a building by using a culture solution.SOLUTION: There is provided a plant cultivation system in which plants are cultivated by circulating a culture solution contained in a culture solution pan 20, the system comprising: i) a first nanobubble supply device 96 for supplying, in a circulation path 82, nanobubbles of an oxygen-containing gas to the circulating culture solution; and ii) a second nanobubble supply device 104 for supplying, in a water feeding path 98, nanobubbles of an oxygen-containing gas to the feeding water. By the two kinds of nanobubble supply devices, the nanobubbles are added not only to the circulating culture solution but also the nanobubbles are added to the feeding water. Thus the culture solution in the culture solution pan can be kept in a good condition with considerable efficiency. |
