| 摘要 |
A float (2) equipped with a pair of positive and negative electrodes (4, 4) is floated on an electrolyte (8) so that the electrodes (4, 4) may move up and down in accordance with the change of the level of the electrolyte (8). This prevents variations of electrolytic conditions such as changes in effective electrode area in contact with the electrolyte (8), and ensures stable electrolysis. Electrolysis of water is carried out by using an electrolytic apparatus that comprises an electrolytic bath (7), a water supply pipe and a drain pipe fitted to the electrolytic bath (7) and a pair of electrodes (4, 4) including a carbonaceous positive electrode, and the electrolyzed water containing carbon dioxide is sprayed for growing terrestrial plants. When the quantity of electrolyzed water decreases due to consumption, water is filled through the water supply pipe and electrolysis is repeatedly conducted. The supply of carbon dioxide solution accelerates photosynthesis in terrestrial plants such as agricultural and horticultural plants and their growth is insured. |
