DYNAMIC LIGHT RECIPE FOR HORTICULTURE

摘要

A lighting system and method for the growing of a plant seedling is disclosed, including at least one light source (30) for illuminating the plant seedling (39) with grow light during growth stages of the plant seedling growth process, and a controller for the controlling the spectral power distribution of the grow light emitted from the light source (30) such that the grow light in at least some growth stages of the plant seedling growth process comprises more energy in the blue wavelength range than in other growth stages of the plant seedling growth process. In use cases where the grow light is supplementing available daylight, an additional sensor (33) may be used to measure the amount and spectral composition of daylight and control the grow light such that spectral power distribution of total light received by the plant seedling is controlled accordingly.

主权项

1. A method for growing plant seedlings comprising the steps of:
providing at least one plant seedling; determining a growth stage of the at least one plant seedling, wherein a growth stage is a phase in a development process of the at least one plant seedling; controlling the spectral composition of a grow light for illuminating the at least one plant seedling, based on the determined growth stage; and illuminating the at least one plant seedling with the grow light, where the step of controlling the spectral composition of the grow light comprises providing additional blue light in a chronologically earlier growth stage compared to a chronologically later growth stage.