new products led grow lights were developed successfully

10-05-2019

   In recent years, fully artificial light control plant factories around the world is gradually formed in the semiconductor industry's new terms, combination of traditional agricultural technology advantage, lighting and automation technology of semiconductor industry, coupled with deep industry foundation of network information for plant factory seems to be the important application and development of the global semiconductor industry development direction.



LED plant growth lamp is based on LED (light-emitting diode) as the light source, in accordance with the growth law of plants must need sunlight, using light instead of sunlight to plant growth and development environment of a lamp.

LED plant light helps shorten the growth cycle of plants, because the light source of this kind of light is mainly composed of red and blue light sources, using the most sensitive light band of plants, red light wavelength USES 620-630nm and 640-660nm, blue light wavelength USES 450-460nm and 460-470nm.In the process of plant growth, it can promote the differentiation of multiple lateral branches and buds, accelerate the growth of rhizome and leaves, accelerate the synthesis of plant carbohydrates and vitamins, and shorten the growth cycle.

A large number of studies on LED application in plant facility cultivation environment indicate that LED plant lamp is particularly suitable for artificial light-controlled plant facility cultivation environment.

The wavelength of 280~315nm led) is ultraviolet light, which has the function of directly inhibiting the growth of all kinds of animals, plants and even fungi, and has little influence on the morphology and physiological process.

·315~400nm led light-- this kind of light belongs to far ultraviolet light. Although ultraviolet light does not harm plants, it has no direct effect on plant growth. Chlorophyll absorption is less, which affects photcycle effect and prevents stem elongation.

· 400-520nm (blue)led light -- this wavelength can directly promote the development of plant roots and stems, and has the largest absorption ratio of chlorophyll and carotenoid, and the largest impact on photosynthesis.

·520~610nm (green)led light -- "repulsive pushing of green plants, and the absorption rate of green pigment is not high.

· 610-720nm (red) led light-- the chlorophyll absorption rate of plants is not high, but this wavelength has a significant impact on photosynthesis and plant growth rate.

·720~1000nm led light -- "this wavelength belongs to the infrared wavelength, which has low absorption rate for plants, can directly stimulate cell elongation, and will affect flowering and seed germination.

Above spectral data shows that the effects of each wavelength of light on plant photosynthesis is different, plants need light for photosynthesis, 400 ~ 520 nm light (blue), and 610 ~ 720 nm (red) for the largest contribution to the photosynthesis, and 520 ~ 610 nm (green) light, for plants to exercise the effect of the growth rate is very low.

According to the above data, it is advisable to use the red and blue light chromatographic ratio of general plant lamps between 5:1 and 10:1, and the ratio between 7 and 9:1 is usually optional. The brightness ratio of beads to be collected in proportion allocation is the light mixing basis, while the number of beads not collected is the light mixing basis.

When plants are planted with led plant growth lamps, the general height from the leaves is about 30-50 cm, which needs to be given different light intensity according to the species of plants planted in the middle, and adjusting the height is generally regarded as the most convenient way of brightness adjustment.

Industry insiders explained that the floor shelves of large plant factories are equipped with LED lights specially for plants, which are different from the common LED spectra. In order to coordinate photosynthesis, the spectrum of plant lights tends to be blue and red, and can be adjusted into cold and warm white light according to individual needs. Remote control with mobile phone APP makes the operation very convenient.The multi-story plant, equipped with a water circulation system, has been tested to grow more than 100 types of plants and is suitable for mass production, the company said.In addition to the home, plant plants generally have two ways to profit, one is a large amount of leafy vegetables, such as cabbage, green river vegetables, lettuce and other cruciferous plants;Second, high-value crops such as ginseng and mothongchi, which are difficult to grow, can be grown under harsh seasonal conditions as long as a specific LED spectrum and control system is used.


With the extensive development of LED industry, LED enterprises are also constantly looking for new ways of development. LED plant growth lamp is undoubtedly an opportunity for LED enterprises to be reborn.




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