| 摘要 |
PROBLEM TO BE SOLVED: To provide a plant cultivation device for adjusting even the internal condition of a plant body according to the adjustment of the external environment condition of the plant body. SOLUTION: This plant cultivation device includes a frame case 1 storing water-containing culture medium matter M, a lighting board 3 radiating light from the upper side to a plant body P to be cultivated in the stored culture medium matter M, an electrode body 2 contacting the culture medium matter M and set in a state of being electrically conducted with the culture medium matter M, and a control part 8 applying negative voltage to the electrode body 2 to put into a negative potential state and supplying electrical current to the lighting board 3 to perform irradiation control. COPYRIGHT: (C)2011,JPO&INPIT
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