On October 16, the Shenzhou 13 manned spacecraft ignited and launched, according to China's space station construction plan, in order to better protect the Shenzhou series of manned mission astronaut crew daily meals, Jiuquan Satellite Launch Center in March this year completed Dongfeng Space City - artificial light vegetable factory.
The artificial light vegetable factory area of 725 square meters, divided into cultivation areas, process auxiliary areas, power-assisted areas and other areas, mainly using LED plant spectroscopy technology, nutrition liquid cultivation technology, automated environmental control technology and intelligent equipment, in the purification plant for high-quality and high-yield vegetable cultivation. At present, the main plant varieties include lettuce, cabbage, ice vegetables, tomatoes, bell peppers, cucumbers and other varieties, from seeding to harvesting only 35 days.
The vegetable factory cultivation area has an automatic control system, in the control cabinet can be set light length, watering time, etc. , but also on the light, moisture, temperature, carbon dioxide concentration system automatic control, the whole process of soilless cultivation. Through seeding, seedling, cultivation and other processes, scientific and technological means to overcome the dependence of crops on production seasons, climatic conditions, to achieve the annual continuous production of crops.
At the same time, the vegetable factory belongs to the whole sterile environment, the whole cultivation process green pollution-free, vegetable production process does not use any pesticides, solve the traditional vegetable production process heavy metal pollution and pesticide residues and other food safety problems, to achieve pick ready-to-eat.
According to Wang Kai, head of the vegetable factory, vegetable factory will be tied to agriculture and industry, based on efficient LED spectroscopy technology and nutrient liquid control technology, controllable clean environment, vegetable factory production efficiency is dozens of times that of traditional agriculture, vegetable production and quality is completely controllable, and nutritional balance, follow-up vegetable factory will explore more vegetables, fruits and cash crops planting methods to meet the launch center science and technology personnel's diverse vegetable needs.
