Recently, in the Quanzhou LED Industry Technology Innovation Strategic Alliance Technology Center, the staff tried to use environmentally-friendly and energy-saving LED light sources for plant lighting, and has achieved initial success. Through technical treatment, the growth rate and survival rate of plants are expected to increase by 20% to 50% under the illumination of LED light sources of appropriate wavelengths, and save about 30% of energy.
At present, in greenhouses and greenhouses, the light sources used to make up for the lack of sunlight are generally fluorescent lamps, high-pressure sodium lamps and incandescent lamps. The spectral energy distribution of these sources is designed according to the needs of the human eye and does not conform to plant growth. .
Plant photosynthesis requires wavelengths of light around 400-700 nm, while blue (470 nm) and red (630 nm) LEDs provide just the light needed for plants, the former can promote green leaf growth, the latter contribute to flowering results and Extend the flowering period. By developing LED lamps suitable for the spectrum required by plants, not only can monochromatic light with narrow light waves be emitted, but also any combination of animals and plants.
Irradiation with LED lamps suitable for the desired spectrum of plants not only promotes their growth, improves the quality of fruits, ensures the taste of vegetables in greenhouses, achieves anti-seasonal cultivation, and greatly reduces the cost of plant cultivation. LED plant growth lamps have high photoelectric conversion efficiency. The power consumption is 1/4 of the fluorescent lamp and 1/10 of the sodium lamp. If LED is used to replace traditional electric light source in plant factory nursery, its one-time total market size will reach 200 billion yuan.
At present, in greenhouses and greenhouses, the light sources used to make up for the lack of sunlight are generally fluorescent lamps, high-pressure sodium lamps and incandescent lamps. The spectral energy distribution of these sources is designed according to the needs of the human eye and does not conform to plant growth. .
Plant photosynthesis requires wavelengths of light around 400-700 nm, while blue (470 nm) and red (630 nm) LEDs provide just the light needed for plants, the former can promote green leaf growth, the latter contribute to flowering results and Extend the flowering period. By developing LED lamps suitable for the spectrum required by plants, not only can monochromatic light with narrow light waves be emitted, but also any combination of animals and plants.
Irradiation with LED lamps suitable for the desired spectrum of plants not only promotes their growth, improves the quality of fruits, ensures the taste of vegetables in greenhouses, achieves anti-seasonal cultivation, and greatly reduces the cost of plant cultivation. LED plant growth lamps have high photoelectric conversion efficiency. The power consumption is 1/4 of the fluorescent lamp and 1/10 of the sodium lamp. If LED is used to replace traditional electric light source in plant factory nursery, its one-time total market size will reach 200 billion yuan.
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