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LED plant lighting: the role and characteristics of different wavelengths

Spectral range of plant physiology 280 ~ 315nm;
The impact on morphological and physiological processes is minimal 315 ~ 400nm;
Less chlorophyll absorption, affecting the photoperiod effect, preventing stem elongation 400 ~ 520nm (blue);
The chlorophyll and carotenoid absorb the largest proportion of photosynthesis maximum 520 ~ 610nm (green);
Pigment absorption rate is not high 610 ~ 720nm (red);
Chlorophyll absorption rate is low, the photosynthesis and photoperiod effects have a significant impact 720 ~ 1000nm;
Absorption rate is low, stimulate the cell elongation, affecting flowering and seed germination> 1000nm;
Converted into heat LED plant lights Features:
1, different wavelengths of light on the photosynthesis of plants is different, the photosynthesis of plants need light, wavelength around 400-700nm. Light of 400-500 nm (blue) and 610-720 nm (red) contribute the most to photosynthesis.
2, blue (470nm) and red (630nm) LEDs, just to provide the light the plant needs, so the ideal choice is to use a combination of these two colors. In the visual effect, the red and blue combination of plant lights pink.
3, blue light helps to plant photosynthesis can promote green leaf growth, protein synthesis, fruit formation; red light can promote plant rhizome growth, help to flowering results and prolong flowering, play an increasing role in yield!
4, LED plant lights red and blue LED ratio is generally between 4: 1-9: 1 is appropriate, usually optional 6-9: 1.
5, Plant light to the plant fill light, the general distance from the leaf height of 0.5-1 meters, continuous exposure to 12-16 hours a day can completely replace the sun. 6, the effect is very significant, the growth rate faster than the general growth of plants nearly three times faster.
7, to solve the winter lack of sunshine greenhouses, to promote plant photosynthesis required for chlorophyll, anthocyanins and carotene, so that fruits and vegetables 20% of the time earlier harvest, an increase of 3 to 5 percent of the output, but also improve the sweetness of fruits and vegetables Degree and reduce pests and diseases.
8, LED light source, also known as semiconductor light source, this light source is relatively narrow wavelength, can emit a specific wavelength of light, so can control the color of light. Use it alone on the plant irradiation, we can improve plant varieties.
9, LED plant growth lamp power is small, but the efficiency is very high, because the other lights are issued full spectrum, that is, there are seven colors, and plants need only red and blue light, so most of the traditional light energy Wasted, so inefficient. The LED plant grow lights can emit specific red and blue light needed by the plant, so the efficiency is very high, which is why LED plant grows several watts of power than the light effect of tens of watts or even a few hundred watts. Another reason is the lack of blue light in the traditional sodium lamp spectrum, and the lack of red light in the mercury lamp and energy-saving lamp spectrum, so the traditional lamp fill light effect is much worse than the LED lamp, and more than 90% energy savings compared to traditional lamps, run The cost is greatly reduced.
LED plant lights advantages:
1, does not require a drive or cooling fan standard power outlet connector.
2, the growth of plants need red and blue light wavelength environment.
3, Compared with other common lighting, LED plant lamp light line is mild, will not make seedling plants scorch.
4, compared with other plant lights can save 10% to 20% of the electricity. 5, blue light can promote plant height, red light is the result of plant flowering.
As with growing plants outdoors, there are many other factors that affect plant growth, such as carbon dioxide concentration, ambient temperature, air quality, moisture, and other nutrients, combined with the effects of light.
From the perspective of indoor plant lighting, we advocate the use of LED plant growth lamp, LED plant lights then how the impact of plant growth?
LED plant lights control the photoperiod to affect plant growth
The creatures on earth have their own schedules, and people need work and rest, and animals need and will do the same. Plants also have hours of work and rest, and we turn it into a photoperiod.
Plant Growth In open-air nature, each plant has developed its own photoperiod gene, but their true growth potential has not been fully exploited due to a variety of natural and uncontrollable factors. LED plant lights bring plants from the outdoors Indoor, a variety of growth conditions can be completely manual control, completely activate the growth of plant cells, through the LED plant light regulation of plant photoperiod, thus affecting plant growth.
LED plant lights affect plant growth by controlling light intensity
Light intensity on plant cell proliferation and organ differentiation have a very important impact, that is, the growth of plants have a very important impact of different light intensity of plant growth at all stages of plant growth in the early days do not need too much light, Can meet the needs of plant germination and growth can be, with the growth of plants, the appropriate increase in light intensity, nurturing robust and tidy degree are very important, plant flowering results, LED plant lighting directly affects the flowering and fruit set rate, at the same time It also determines the yield and quality of this plant.
LED plant light custom control light quality plant growth
Plant Lighting LED Plant Growing Light Lamp beads are mainly red, blue, white and full spectrum lamp beads. The reason why these lamps are used is that numerous experiments have proved that the most needed light for plant growth Is the red and blue light, LED plant light white light beads is to supplement plant growth may need other spectral components, full spectrum LED plant lamp beads emitted mainly red and blue light, light on the callus lure And organ differentiation also have a significant impact, the red spectral play a particularly important role in plant flowering time.
LED plant light on plant growth mainly through the control of light quality, light intensity and adjust the plant photoperiod to complete the purchase LED plant lights should pay particular attention to, to choose the plants corresponding to the light intensity and light quality Plant growth light.
 
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