| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydroponics method and a hydroponics apparatus capable of finely managing a cultivation condition value of a plant while maintaining a cultivation condition for increasing a COconsumption amount of the plant as fully as possible.SOLUTION: In the case where determination is made that a COconsumption amount AC increased on determination steps S11,S11A, a changing step S3 is executed by using a predetermined value PV. On the other hand, in the case where determination is made that the COconsumption amount AC decreased on the determination steps S11,S11A, the changing step S3 is executed by using a predetermined value PV having an opposite positive/negative sign from the predetermined value PV. In the case where a cultivation condition value X changed by using the predetermined value PV on the changing step S3 is a predetermined upper limit value UL or more, the cultivation condition value X is replaced by the upper limit value UL. On the other hand, in the case where the cultivation condition value X changed by using the predetermined value PV on the changing step S3 is a predetermined lower limit value LL or less, the cultivation condition value X is replaced by the lower limit value LL. |
