| 摘要 |
PROBLEM TO BE SOLVED: To raise plants by utilizing LED composite light beams having a wavelength light beam of LED adapted for plant types, short-day plants, medium-day plants, long-day plants.SOLUTION: A composite light beams utilization method in which plants are irradiated with composite light beams of green light, yellow light and red light at night or dark time, and growth of the plants is controlled by their types by an apparatus having the composite light beams. |
