It does not require soil and sunlight, and realizes intelligent plant production at any time and place. The output per unit area can reach dozens or even hundreds of times of ordinary cultivated land. The "artifact" that subverts the concept of "all things grow by the sun" is actually LED plant-specific light. The LED plant lighting technology that is indispensable in this plant factory is the product independently developed by Sichuan Xinli Light Source Co., Ltd.
At present, this Chengdu-based company has not only developed LED plant lighting products, but also set up a plant factory experimental base in Changchun, and has successfully planted the cherries that are unlikely to grow in the Northeast.
Rare earth phosphor
Tailored "light" for vegetables
On June 1st, LED plant lighting developed and produced by Xinli Light Source officially appeared in the national “Twelfth Five-Year” scientific and technological innovation achievement exhibition. Wang Sen is the person in charge of research and development. He introduced that the LED plant lighting at the exhibition site uses the T8 integrated plant lighting independently developed and produced by Xinli Light Source. He said that this technology and product appeared in the national "Twelfth Five-Year" scientific and technological innovation achievement exhibition, "because the technology is currently unique worldwide!"
What is the principle of this technology? “T8 integrated plant lighting is based on the AC- led lighting technology independently developed by Xinli Light Source. Through accurate ratio of rare earth phosphors, the light source can provide targeted and accurate light ratio according to different plants, effectively promoting plant photosynthesis. The role of creating more suitable conditions for plant growth.” Wang Sen said that the biggest function of LED plant lighting is to tailor the spectrum to the needs of plants for light, and to customize the light quality and quantity for plants of different types and different growth stages. Light cycle.
“Rare earth phosphors are unique patents of Xinli Light Source. At present, Xinli Light Source has 1015 national patents, and there are more than 20 patents in plant lighting.” In Wang Sen’s view, special spectrum is like different ages. The people in the segment are equipped with infant formula and middle-aged milk powder, which can absorb useful nutrients. The content of plants, vitamins and sugars grown in the LED light environment has hardly changed. Due to the sufficient light source, the plant's photosynthetic efficiency is improved and the plant's potential can be fully exerted.
Breaking natural conditions
Planting cherries in Changchun in winter
The reporter learned that the production technology of plant factories was first formed in countries with tight land resources such as Japan, Israel, and Denmark. However, in recent years, China has gradually begun to build plant factories and continuously promote localization technology.
How do smart plant factories produce fruits and vegetables with “pipeline” without planting in the ground or using the sun? At present, Xinli Light Source and the geography of the Chinese Academy of Sciences in Changchun have set up an experimental base - Zhongke Optoelectronics (Changchun) Co., Ltd., and have already realized the mass production of lettuce, eggplant, cherry, strawberry and other fruits and vegetables.
Wang Sen told reporters that in addition to the "preference" of plants for different spectra, the corresponding LED lights were chosen instead of sunlight as the light source for 24 hours of uninterrupted illumination, as well as temperature, humidity, light, air current and carbon dioxide in the plant. Environmental factors such as concentration and nutrient solution are automatically monitored in real time to ensure maximum photosynthesis. Compared with the traditional planting mode, the land utilization rate is high, the operation is labor-saving, the degree of mechanization is high, the product is safe and pollution-free, and the nutritional value is greatly improved.
"By controlling the environment in the factory, the growth of plants is almost unrestricted by natural conditions and the growth cycle is accelerated." Wang Sen told reporters that lettuce and cabbage grown in plant factories will be around 20 days. It can be harvested, but in the ordinary field, it takes between one month and 40 days. In the experiment, only vegetables such as eggplant increased the yield by more than 2,000 kilograms per mu in one season, which greatly increased the income of the growers.
The cherries that were successfully tested at the beginning of this year filled the gap in the northeastern region where it was impossible to grow cherries. Wang Sen said that in Changchun, it was not possible to eat the local cherries. Because of the limitation of light, the cherries could not grow mature in the northeast region, and the spring cherry blossoms in Changchun this year were successful. About 180 yuan, still in short supply.
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