PROBLEM TO BE SOLVED: To provide a plant raising technology using both sunshine and artificial light, and capable of further improving productive efficiency. SOLUTION: A plant raising system comprises using both sunshine and artificial light so as to raise plants in hydroponics. The plant raising system has a raising tower (2) which has a hollow cylindrical form, is rotatable around an axis (P), is nearly vertically arranged in a standing condition to irradiate sunshine, and has a cultivation bed (10) where plants are planted, a mist nozzle (3) which sprays liquid fertilizer to plant roots exposed to the internal circumference side of the cultivation bed (10), and a raising lamp (4) which sequentially irradiates artificial light from a fixed direction to plants set on the cultivation bed (10) with the rotation of the cultivation bed (10). COPYRIGHT: (C)2008,JPO&INPIT
