Plant growth principle statement of LED plant growth light
Greenhouse vegetables are one of the types of greenhouse cultivation. They are mainly used to grow vegetables. The ecological and environmental protection of everyone's cultivation is integrated. According to market demand, it is difficult to distinguish between different seasons of vegetables and fruits. The rapid development of greenhouse vegetables has taken into account the requirements of the sales market, but it is not always true that greenhouse vegetables can be planted with high yields, and there are countless losses due to poor management methods. How to increase the output of greenhouses has become an urgent problem.
In order to better increase the yield of greenhouse cultivation, Yaorong has developed a blue-red LED plant growth lamp based on the characteristics of plant photosynthesis, which fills in the sunlight for plants, reduces the planting cycle time, and improves the resistance of plants to diseases, thereby increasing The yield and quality of plants have become the key guarantee for high-efficiency production and manufacturing in modern agriculture.
Greenhouse growers said that after using the LED plant growth light soft light, the cultivated agricultural products do have a significant effect, and the main stem is taller.
Why the direct irradiation of LED plant growth lights can increase the yield of food crops?
We know that the light natural environment is one of the key physical environmental elements that plants cannot lack for growth and development. According to the adjustment of light quality, manipulating the shape of the main stem to complete is a key technology in the equipment planting industry; plant growth lights are more energy-saving and environmentally friendly Efficacy, LED plant growth light shows photosynthesis to plants, promotes plant growth and development, shortens the practical time for plant results, and improves manufacturing!
1. Chlorophyll
Chlorophyll is one of the most important pigments related to photosynthesis. It exists in all organisms that can create photosynthesis, including green plants, prokaryotic blue-green algae (cyanobacteria) and eukaryotic algae. Chlorophyll absorbs energy from light, which is then used to convert carbon dioxide into carbohydrates. Chlorophyll a mainly absorbs red light, and chlorophyll b mainly absorbs blue-violet light, mainly to distinguish shade plants from sun plants. The ratio of chlorophyll b to chlorophyll a of shade plants is small, so shade plants can use blue light strongly and adapt to growing in shade. Chlorophyll a is blue-green, and chlorophyll b is yellow-green. There are two strong absorptions of chlorophyll a and chlorophyll b, one in the red region with a wavelength of 630~680 nm, and the other in the blue-violet region with a wavelength of 400~460 nm.
The first band of radiant light: It is ultraviolet light that contains a lot of energy, but part of the ultraviolet light is absorbed by the ozone layer. Therefore, we are more concerned about the parts that are closely related to agricultural film: ultraviolet-b (wavelength 280-320nm) and ultraviolet-a (wavelength 320-380nm). These two wavelengths of ultraviolet light have different effects such as: The flower of the plant produces a coloring effect.
The second band of radiant light: Visible light (wavelength 400-700nm), equivalent to blue, green, yellow and red light, also known as PAR, which is the active area of photosynthesis. It is the most important part of visible light used by plants for photosynthesis. Blue light and red light are the most important parts of the PAR band, because riboflavin in plants can effectively absorb this part of light, while green light is not easily absorbed.
The third band of radiation: infrared, which can be divided into near-infrared and far-infrared. Near-infrared light (wavelength 780-3,000nm) is basically useless to plants, it only generates heat. The far infrared has a wavelength of 3000-50,000nm, and this part of the radiation does not come directly from sunlight. It is a kind of radiation produced by molecules with thermal energy, which is easily lost at night.
2. Carotenoids
Carotenoids (carotenoids) are a general term for a class of important natural pigments, which are commonly found in yellow, orange-red or red pigments in animals, higher plants, fungi, and algae. So far, more than 600 natural carotenoids have been discovered. The light absorption of carotenoids covers the range of OD303~505 nm. It provides the color of food and affects the human body's intake of food; in algae, plants and microorganisms, its color cannot be presented because it is covered by chlorophyll. In plant cells, the carotenoids produced not only absorb and transfer energy to help photosynthesis, but also have the function of protecting cells from being destroyed by excited single-electron bond oxygen molecules.
The spectrum required for plant growth should be a continuous spectrum with a certain distribution width. It is obviously inappropriate to use a light source made of two specific wavelength chips of red and blue with a very narrow spectrum. It is found in experiments that plants will occur. It is yellowish, the leaf stem is very light, the leaf stem is very thin and so on. The spectrum required for plant growth should be a continuous spectrum with a certain distribution width. It is obviously inappropriate to use a light source made of two specific wavelength chips of red and blue with a very narrow spectrum. It is found in experiments that plants will occur. It is yellowish, the leaf stem is very light, the leaf stem is very thin and so on.
LED plant growth light is beneficial to reduce the growth cycle of plants. Since the light source of the light is mainly composed of red and blue light sources, the most sensitive light band of plants is selected. Red light wavelengths should be 620-630nm and 640-660nm, and blue light wavelengths should be used. 450-460nm and 460-470nm. This kind of light source is all to make plants cause the best photosynthesis, and the plants get the best growth and development. Experiments and specific applications show that in addition to giving plants to get soft light during the lack of light, they also let the plants get the best photosynthesis. During the whole process of growth and development, it promotes the division of multiple branches and buds, accelerates the growth and development of roots, stems and leaves, accelerates the production of plant sugars and vitamins, reduces the growth cycle and increases the yield.
In the power supply circuit of greenhouse planting lighting lamps, series-parallel circuit is a universal power supply circuit for LED plant growth light strips at this stage. In the natural environment lacking daylight, LED plant growth lamps can be used as daylight, so that plants can grow and develop normally or better. This kind of lamp has the effect of strengthening roots, promoting growth, adjusting the flowering period and flower type, promoting the perfection and coloring of the fruit, and improving the taste and quality! Hydroponic vegetable light natural environment is one of the key physical environment elements that plants cannot lack for growth and development.
According to the adjustment of light quality, manipulating the shape of the main stem is a key technology in the planting industry. LED plant growth lights show photosynthesis to plants, because several LEDs are selected and connected in series to form a group, and then processed in parallel with other groups. It maximizes the utilization rate of the power supply voltage and reduces the useless electromagnetic energy loss. Choosing a number of LEDs connected in series can ensure that the working voltage of this LED is universal, which is beneficial to smooth the current flow of the LED, and thereby ensure the life of the LED. After the LED plant growth lamp group is connected in series, it is connected in series with other groups to ensure that when one group is destroyed, it is not easy to endanger all the normal use of other groups. Because each group has power resistors, the service life of the other group is not easy to be harmed by the destruction of one group.
Shenzhen Yaorong Lighting Co., Ltd. is a professional manufacturer of LED plant growth lights. LED plant growth lights include: LED quantum board plant supplement light, LED full-spectrum plant growth light tube, LED greenhouse supplement light, LED plant growth light, Octopus plant lights, not as plant growth lights, octopus plant fill lights, industrial hemp fill lights, UFO plant high bay lights, red and blue plant growth lights, greenhouse vegetable base fill lights, etc.
