Recently, "fruit events" have been frequently exposed. First, watermelon poisoning, said that a provincial student was poisoned and admitted to hospital after eating watermelon, and some poisoned people were dying. The incident also caused some supermarkets to call angry citizens to hold the “Watermelon Activityâ€. Second, beekeepers of beekeeping revealed to the media that the bees collected a large number of deaths after collecting strawberry nectar. Third, some children in kindergartens are diagnosed with precocious puberty because they have eaten fruits with added ripeners.
These incidents are related to pesticide residues and excessive use of ripeners.
This article does not want to explore the legal and ethical issues here, just to talk about agricultural issues, or LED and agriculture.
As we all know, LED lighting has developed to the present day, and there has been a serious overcapacity problem. Tens of thousands of companies either die without orders or they can't sell them in warehouses. A little better, it is also after a brutal price war, the profits are lost, and it is still faint.
The LED industry has excess capacity and must be diverted. At present, there are two exports, one is to break through the field of optical communication, and the other is to look for living space in the field of plant lighting, that is to say, the agricultural field.
It should be said that the current LED light source is very mature in technology, and the application of LED light source in plant growth is a major breakthrough in recent years. As the nighttime illumination of crops, LED lights can solve the production problems caused by insufficient light, and can also achieve the benefits of energy saving and energy saving, increase farmers' income, and avoid the problem of using pesticides and ripening agents to ensure food safety.
Last year, the author went to Taiwan to observe the plant factory, and saw the state of growth of pepper, lettuce, white, asparagus, tomatoes and strawberries in the plant box. If the manufacturer allows it, you can even pick the chewing food directly, do not wash it with water, and don't worry about the pesticide residue problem, because no pesticide is used at all.
Taiwan has been using LED light sources for plant lighting for several years. Moreover, it is mainly used in crops with high added value of agriculture, such as A. chinensis, Dendrobium candidum, and B. chinensis. These plants are illuminated by LED lights, and grow very fast. The price after listing is high, and the return is several times that of general agricultural products. . The production cost is not high, because the LED lamp itself is energy-saving and has no light damage, which can make the crops stay up all night for photosynthesis, thus shortening the growth cycle.
Now, what we are most worried about is food safety, and it is difficult for traditional agriculture to solve this problem fundamentally. Because traditional agriculture is inseparable from natural water and soil, it is inseparable from meteorological factors such as climate and festivals. At present, there are pollution problems in natural water and soil, and pest problems in all seasons. It is basically impossible to completely eliminate the use of pesticides.
These problems are basically absent in the plant lighting factory. The growing environment of the crops is basically a sterile space. Even the staff should wear sterile clothes. The fruits and vegetables grown in this environment can be safely eaten.
So LED can save agriculture.
Edit: Bober
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