| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a completely controlled plant growing factory which efficiently uses discharge water used in land-based fresh water fish cultivation while preventing the discharge water from directly flowing into rivers and lakes. <P>SOLUTION: According to the structure of the completely controlled plant growing factory, four-staged cultivating beds 12 are arranged on a cultivating stand 10, and LEDs 14 as artificial light sources are arranged over each of the cultivating beds 12. Then a tank 21 is arranged under the lowermost cultivating bed 12. A culture solution in the tank 21 forms a part of a circulation channel for feeding culture solution to the cultivating bed 112, and fresh water fish is cultivated in the tank 21. <P>COPYRIGHT: (C)2008,JPO&INPIT |
