LED plant lighting development faces four major problems

At the beginning of last month, President Xi Jinping visited the Beijing Exhibition Hall to visit the 12th Five-Year Science and Technology Innovation Achievement Exhibition. He stopped in front of the intelligent LED plant factory and pointed out the beneficial effects of the plant factory in solving the people's livelihood problems and desert cultivation. Not long ago, the first in Xinjiang The intelligent LED plant factory officially started operation; in January this year, the Institute of Botany of the Chinese Academy of Sciences and the Fujian Sanan Group had an exhibition at the beginning of last month. President Xi Jinping visited the Beijing Exhibition Hall to visit the 12th Five-Year Innovation Achievement Exhibition and stopped at the intelligent LED plant factory. Scrutiny, pointed out the beneficial role of plant factories in solving people's livelihood problems and desert planting; not long ago, the first intelligent LED plant factory in Xinjiang officially started operation; in January this year, the Institute of Botany of the Chinese Academy of Sciences cooperated with Fujian Sanan Group Co., Ltd. The co-constructed plant factory project has been settled in Hutou County. LED plant lighting as an important part of the plant factory, the aura has indeed become more and more dazzling. At present, many lighting companies around the world are accelerating the deployment of plant lighting. A competition without smoke is quietly going on. First, the LED light source will play a huge role in agricultural lighting. The agricultural lighting of LED light source has been vigorously developed in developed countries such as Europe and the United States. Governments of all countries are actively promoting LED agricultural lighting. China's LED technology in the field of agricultural lighting has risen in recent years. . In fact, LED light sources will play a huge role in agricultural lighting, which can completely replace natural lighting and traditional artificial lighting. The application of LED light source in agricultural lighting mainly includes plant production, aquaculture, microalgae cultivation, and edible fungus production. The visible light spectrum is between 380 and 760 nm. This wavelength is absorbed by plant organisms and can cause chemical changes. It has a wide regulatory effect on plant growth and development, physiological metabolism, morphogenesis, photoperiod response and nutritional quality. Light environment is one of the important physical environmental factors indispensable for plant growth and development. Controlling plant morphogenesis through light quality regulation is an important technology in the field of facility cultivation. The main effects of light spectrum on plant photosynthesis are red light and blue light. The red light is mainly concentrated at 630-660 nm. Its function is to help plants to bloom. The blue light is mainly concentrated in 450-470nm. Its role is to help plants grow longer. leaf. Therefore, the wavelength of the LED agricultural illumination source is very suitable for plant growth, flowering, and results. Generally, indoor plants and flowers will grow worse with time. The main reason is the lack of light irradiation. It can not only promote the growth of LED lamps through the spectrum suitable for plants, but also prolong the flowering period and improve the quality of flowers. Second, the difficulties faced by LED plant lighting 1. At present, the domestic LED plant lamp market is still in its infancy, and the lamps used in the field of plant growth not only have problems such as high cost and poor light penetration ability. There are also problems such as product clutter, irregular production design, lack of uniform product standards and quality management. 2, LED plant lighting technology is not very difficult, the key is the lack of comprehensive knowledge of biological training knowledge and LED technology. The technology and production process required for LED plant lighting is no different from general lighting. The key is the choice of chip spectrum. 3. Although the related chip technology of plant lighting has matured, different plants have different requirements for light irradiation, and the living environment is different. This requires enterprises to have deeper understanding of different plant spectra, living conditions and culture environment. Know, and this is where the current many companies are troubled. 4. However, current agricultural LED panel lights usually only provide two or three different peak wavelength LEDs, which cannot provide equipment for plant production research of multicolor spectral coupling and superposition effects. With the continuous improvement of China's LED plant lighting technology, its production cost will gradually decrease, the penetration rate will gradually increase, and the Chinese market will enter an outbreak period. In general, whether it is from the perspective of promoting the development of modern agriculture or the realization of energy conservation and environmental protection, LED is of great significance in agriculture, and the status and development needs of agriculture also provide opportunities for LED development.

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