LED lighting technology has achieved remarkable results in the past 10 years. Despite the rapid growth of LED light source and crystal lighting market in the past few years, compared with other lighting industries, the application of LED light sources in horticultural production is almost one or two years. .
The application of LED light sources in the horticultural industry is largely due to the obvious advantages of LED lighting technology. Because LED can provide high-power combined light sources with specific wavelengths, flower growers have obviously realized its benefits: saving energy and improving the efficiency of using light. .
The growth of greenhouse plants depends on the appropriate temperature and light, which is conducive to the synthesis of photosynthetic pigments such as chlorophyll and plant growth. Academic research in recent years has confirmed that plants are sensitive to light of specific wavelengths. Photosynthesis at wavelengths of about 640 to 660 nanometers of red light and about 450 nanometers of blue light can increase the absorption of chlorophyll.
Comparison of advantages of LED lamps and high-pressure sodium lamps High-pressure sodium lamps are the most common greenhouse light sources. Compared with the relationship between high-pressure sodium lamps and chlorophyll absorption peaks, most of the high-pressure sodium lamps output exceeds the maximum peak demand for chlorophyll absorption. Research shows that only 7% of the light is absorbed by plants in greenhouses that are filled with high-pressure sodium lamps. Most of the light sources are wasted.
The use of LED light sources instead of high-pressure sodium lamps achieves the goal of energy conservation. In addition to energy-saving advantages, the use of specific-spectrum LED modules that match the absorption peaks of chlorophyll can better ensure the effectiveness of light output on plant photosynthesis and plant growth. By adopting this advanced and efficient LED light-filling technology, it not only provides the specific wavelength of light required by plants, but also greatly reduces the energy cost of electricity, thereby effectively promoting plant growth.
Improved LED light-filling technology At present, global LED manufacturers have realized the great advantages of LED lighting applied in the horticulture industry. Due to technological advancements, many LED units can be combined into a small-sized luminous body. Emitters produce a bright beam.
In addition, two-wavelength LED modules close to the peak of the chlorophyll absorption spectrum (455 nm and 660 nm) can be designed as a plurality of light emitters, which can increase the growth rate of healthy plants and reduce the power consumption of electricity when used for greenhouse lighting. .
A recent pilot project to replace conventional greenhouse light sources with LED-specific wavelength light sources shows that using LED light sources can reduce energy consumption by 40% and reduce fertilizer input by 20%.
Practical applications of LED lighting Today, in the greenhouse horticulture industry, growers have begun to use different forms of LED lighting, with traditional roof lighting, as well as three-dimensional planting lighting and plant interior lighting, the latter because the light is closer to the plant, It is more conducive to promoting plant growth and reducing energy consumption.
Many traditional lighting technologies cannot be applied in stereo planting and interior lighting of plants. For example, traditional lighting sources generate excessive heat and burn plant tissue during use. It is predicted that by 2013, only one LED component will be used in the horticultural lighting market will reach 20 million US dollars, mostly for three-dimensional planting and plant interior lighting.
Positive Effects and Development Potential Studies have shown that specific wavelengths of light and light can increase plant output or increase the biomass of some fruits and vegetables. By using more pre-determined light, the number of joules required per kilogram of product can be reduced. In addition, with the appropriate combination of light, the product quality can be improved and the production cycle can be extended while the yield can be increased by more than 20%.
Research is continuing on increasing photosynthesis rates and other wavelengths of light required for plant growth. Research has focused on the positive effects of saturated light, such as infrared light, on the different growth stages of plants. With the further improvement of LED technology in the future and people's understanding of the depth of the light required for the specific wavelength of the plant growth process, the world horticulture industry will enter a new stage of revolutionary development.
The application of LED light sources in the horticultural industry is largely due to the obvious advantages of LED lighting technology. Because LED can provide high-power combined light sources with specific wavelengths, flower growers have obviously realized its benefits: saving energy and improving the efficiency of using light. .
The growth of greenhouse plants depends on the appropriate temperature and light, which is conducive to the synthesis of photosynthetic pigments such as chlorophyll and plant growth. Academic research in recent years has confirmed that plants are sensitive to light of specific wavelengths. Photosynthesis at wavelengths of about 640 to 660 nanometers of red light and about 450 nanometers of blue light can increase the absorption of chlorophyll.
Comparison of advantages of LED lamps and high-pressure sodium lamps High-pressure sodium lamps are the most common greenhouse light sources. Compared with the relationship between high-pressure sodium lamps and chlorophyll absorption peaks, most of the high-pressure sodium lamps output exceeds the maximum peak demand for chlorophyll absorption. Research shows that only 7% of the light is absorbed by plants in greenhouses that are filled with high-pressure sodium lamps. Most of the light sources are wasted.
The use of LED light sources instead of high-pressure sodium lamps achieves the goal of energy conservation. In addition to energy-saving advantages, the use of specific-spectrum LED modules that match the absorption peaks of chlorophyll can better ensure the effectiveness of light output on plant photosynthesis and plant growth. By adopting this advanced and efficient LED light-filling technology, it not only provides the specific wavelength of light required by plants, but also greatly reduces the energy cost of electricity, thereby effectively promoting plant growth.
Improved LED light-filling technology At present, global LED manufacturers have realized the great advantages of LED lighting applied in the horticulture industry. Due to technological advancements, many LED units can be combined into a small-sized luminous body. Emitters produce a bright beam.
In addition, two-wavelength LED modules close to the peak of the chlorophyll absorption spectrum (455 nm and 660 nm) can be designed as a plurality of light emitters, which can increase the growth rate of healthy plants and reduce the power consumption of electricity when used for greenhouse lighting. .
A recent pilot project to replace conventional greenhouse light sources with LED-specific wavelength light sources shows that using LED light sources can reduce energy consumption by 40% and reduce fertilizer input by 20%.
Practical applications of LED lighting Today, in the greenhouse horticulture industry, growers have begun to use different forms of LED lighting, with traditional roof lighting, as well as three-dimensional planting lighting and plant interior lighting, the latter because the light is closer to the plant, It is more conducive to promoting plant growth and reducing energy consumption.
Many traditional lighting technologies cannot be applied in stereo planting and interior lighting of plants. For example, traditional lighting sources generate excessive heat and burn plant tissue during use. It is predicted that by 2013, only one LED component will be used in the horticultural lighting market will reach 20 million US dollars, mostly for three-dimensional planting and plant interior lighting.
Positive Effects and Development Potential Studies have shown that specific wavelengths of light and light can increase plant output or increase the biomass of some fruits and vegetables. By using more pre-determined light, the number of joules required per kilogram of product can be reduced. In addition, with the appropriate combination of light, the product quality can be improved and the production cycle can be extended while the yield can be increased by more than 20%.
Research is continuing on increasing photosynthesis rates and other wavelengths of light required for plant growth. Research has focused on the positive effects of saturated light, such as infrared light, on the different growth stages of plants. With the further improvement of LED technology in the future and people's understanding of the depth of the light required for the specific wavelength of the plant growth process, the world horticulture industry will enter a new stage of revolutionary development.
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