ILLUMINATION DEVICE FOR PLANTS, CULTIVATION SHELF, PLANT FACTORY, AND PLANT CULTIVATION METHOD

摘要

PROBLEM TO BE SOLVED: To efficiently irradiate plants with light for promoting growth while lightening psychological burden to an operator.SOLUTION: Synthetic light of emitting light from an illumination part for growth and emitting light from an auxiliary illumination part has a first peak of photon flux in a wavelength of 400 nm or more and 500 nm or less, and has a second peak of photon flux in a wavelength of 600 nm or more and 700 nm or less. Photon flux of each wavelength in 500 nm or more and 600 nm or less in the synthetic light is smaller than the photon flux of the first peak and the second peak.