PLANT LIGHTING SYSTEM AND PLANT PRODUCTION ROOM WITH APPLICATION OF SUCH PLANT LIGHTING SYSTEM

摘要

1. A lighting system comprising a lighting device comprising a plurality of light sources for use in a plant production room containing said lighting device, the light sources being configured to illuminate crops used in plant growing light within said plant production room, the lighting system further contains a control unit that is configured to adjust the light intensity I am from local light at a location within the plant production facility, the local light being the sum of the light used in plant growing and optional light coming from an optional other light source at the location, and the control unit is configured to prevent a change in the density of the photosynthetic photonic the local light flux at a location within the plant for production on average more than 50 μmol / s / mza an predetermined time period selected from a range equal to or less than 5 minutes by controlling the contribution of light used in crop production to local light, the density of the photosynthetic photon flux of local light being determined as the total number of photons within the wavelength range of 400-800 nm per second per unit of local area receiving light. 2. The lighting system according to claim 1, wherein the control unit is configured to prevent a change in the density of the local photosynthetic photon flux