On October 16, the Shenzhou 13 manned spacecraft was ignited into space. According to China's space station construction plan, in order to better ensure the daily food for the astronauts of the Shenzhou series of manned missions, the Jiuquan Satellite Launch Center was completed in March this year. Dongfeng Aerospace City-artificial light type vegetable factory.

The artificial light vegetable factory covers an area of 725 square meters, divided into cultivation area, process auxiliary area, power auxiliary area and other areas. It mainly uses LED plant spectrum technology, nutrient solution cultivation technology, automated environmental control technology and intelligent equipment to purify High-quality and high-yield vegetable cultivation is carried out in the plant. At present, the main varieties include lettuce, cabbage, iced cabbage, tomato, sweet pepper, cucumber and other varieties. It only takes 35 days from sowing to harvest.

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The vegetable factory cultivation area has a set of automatic control system. The control cabinet can be set for lighting time, watering time, etc., and it can also automatically control the light, water, temperature, and carbon dioxide concentration to achieve soilless cultivation throughout the process. After sowing, seedling, cultivation and other processes, scientific and technological means are used to overcome the dependence of crops on the production season and climatic conditions, and realize the annual continuous production of crops.

At the same time, the vegetable factory belongs to a completely sterile environment, the whole cultivation process is green and pollution-free, and no pesticides are used in the vegetable production process, which solves the food safety problems of heavy metal pollution and pesticide residues in the traditional vegetable production process, and realizes picking and eating.

According to Wang Kai, the person in charge of the vegetable factory, the vegetable factory combines agriculture and industry. Based on high-efficiency LED spectrum technology and nutrient solution control technology, the production efficiency of the vegetable factory is dozens of times that of traditional agriculture. And the quality is completely controllable, and the nutrition is balanced. The subsequent vegetable factory will explore more ways to grow vegetables, fruits and cash crops to meet the diversified food needs of the scientific and technical personnel of the launch center. (Comprehensive source: CCTV News, Lanzhou Daily)