On December 2, GMKJ LED learned from relevant channels that the standard proposal "Technical Requirements for Facility Plant Lighting System UV LED Supplementary Light" submitted by the Institute of Environment and Sustainable Development of the Chinese Academy of Agricultural Sciences to the CSA Standards Committee (CSAS) was managed The committee voted and the technical advisory committee reviewed and passed, the standard was formally approved and the CSA group standard number T/CSA 080 was determined.
It is understood that light is the basic environmental factor for plant growth and development. Light not only supplies energy for plant growth through photosynthesis, but is also an important regulator of plant growth and development. Supplementing artificial light or irradiating plants with artificial light can promote plant growth, increase yield, improve product form, color, and functional ingredients, and reduce the occurrence of pests and diseases.
At present, in the hot plant lighting factory model, the LED light source is mainly composed of visible light in the red (600nm-700nm) and blue (400nm-500nm) bands, because photosynthesis has the highest quantum conversion efficiency in this band. In addition to the visible light that directly provides energy for photosynthesis, the normal growth of plants also requires signal spectrum to participate in the adjustment of its quality formation or other growth processes.
Ultraviolet light (280nm-400nm) is considered to be the key spectrum for the formation of plant quality. The use and adjustment of ultraviolet light in plant lighting factories is very important to ensure high quality and high yield. The application of artificially controlled ultraviolet (UV) light sources to supplement UV radiation technology can reduce chemical methods that lead to plant growth and improve plant quality, such as increasing antioxidants in vegetables Increase the accumulation of secondary metabolites in medicinal products, accelerate the synthesis and accumulation of color-developing substances in flower leaves and petals, etc.
At present, there is no standard or specification requirement related to the ultraviolet LED light source of artificial light plant factories. The formulation of this standard is expected to promote the healthy development of the industry. "LED supplementary light technical requirements" standard formulation work.
