Different wavelengths of light have different effects on plant photosynthesis. The light required for plant photosynthesis has a wavelength of about 400-700nm. 400-500nm (blue) light and 610-720nm (red) contribute the most to photosynthesis. Blue light helps plant photosynthesis, which can promote green leaf growth, protein synthesis, and fruit formation; red light can promote plant rhizome growth, help flowering and fruiting and prolong flowering, and increase yield!
The characteristics of LED plant lights: rich wavelength types, just in line with the spectral range of plant photosynthesis and light morphology; narrow half-width of the spectrum wave width, can be combined as needed to obtain pure monochromatic light and composite spectrum; it can concentrate light of specific wavelengths and illuminate in a balanced manner Crops; not only can regulate the flowering and fruiting of crops, but also control the plant height and nutrient content of the plants; the system generates less heat and occupies a small space. It can be used in a multi-layer cultivation three-dimensional combination system to achieve low heat load and miniaturization of production space.
Due to its remarkable characteristics, LEDs are very suitable for plant cultivation in a controlled facility environment, such as plant tissue culture, facility gardening and factory seedlings, and aerospace ecological life support systems. As the fourth-generation new lighting source, LED has many characteristics that are different from other electric light sources, which also makes it the first choice for energy-saving and environmentally friendly light sources. The LED used in the field of plant cultivation also exhibits the following characteristics: rich wavelength types, just in line with the spectral range of plant photosynthesis and light morphology; the spectrum wave width is narrow at half width, and can be combined as needed to obtain pure monochromatic light and compound spectra, and can be concentrated. The specific wavelength of light irradiates the crops in a balanced manner; not only can adjust the flowering and fruiting of the crops, but also control the plant height and the nutrients of the plants; the system generates less heat and occupies a small space. It can be used in a multi-layer cultivation three-dimensional combination system to achieve a low heat load And miniaturization of the production space; in addition, its strong durability also reduces operating costs.
Recently, at the invitation of the Ministry of Science and Technology, Professor Xu Zhigang from the College of Agriculture of Nanjing Agricultural University undertook the 863 project "Semiconductor Lighting Light Source Applied Research in Plant Tissue Culture" to participate in the exhibition. The "LED plant tissue culture light", "LED plant light", "LED intelligent biological incubator" and "LED plant cultivation intelligent light control system" exhibited by Nanjing Agricultural University have received extensive attention from the industry and many listed companies Expressed the willingness to cooperate in research and development. Cao Jianlin stopped and inspected in front of the booth of Nanjing Agricultural University and listened to the introduction of the scientific research achievements of the 863 project undertaken by Nanjing Agricultural University, and gave enthusiastic encouragement and praise. Li Jinmin, chief expert of major semiconductor lighting projects and director of the Institute of Semiconductors of the Chinese Academy of Sciences, accompanied the inspection.
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