Therefore, green lettuce, fresh cucumbers, and small tomatoes of Zhu Yurun have been one of the most "luxury" dreams of Antarctic expedition members. To this end, during the 31st Antarctic expedition in China, as one of the topics of the 2014 National Science and Technology Support Program, the “Key Technology Research and Demonstration of Extreme Greenhouse Vegetable Production in the Antarctic†project, the initial research experiment was carried out at Zhongshan Station and Changcheng Station. . Thanks to the advanced greenhouse cultivation technology including LED plant lighting, this dream has become a reality in the Chinese Antarctic scientific research station.
LED plant growth lamp automatically adjusts the lighting duration according to the growth of vegetables
According to Wang Zheng, the 31st national Antarctic expedition team member, the vegetable greenhouse laboratory is a 16 square meter room. The whole greenhouse adopts soilless cultivation technology. The vegetable planting automatic control system automatically controls the irrigation pump, temperature and humidity, cultivation lamp and nutrition. Liquid, etc. For example, under the control of a computer, LED plant growth lights can automatically adjust the length of illumination according to the growth of vegetables. Greenhouse built with rows led lights, during the Antarctic polar day, of greenhouse vegetables grown using natural light; polar night period, the led lighting implemented using plant photosynthesis, LED lights mimic sunlight, effectively solve the problem of insufficient sunlight.


Vegetables under LED lights
“Because of the short growth cycle, easy cultivation, and high yield, the main cultivated vegetables in Zhongshan Station are lettuce, cabbage and cucumber.†Wang Zheng said. Taking cucumber as an example, a cucumber vine can harvest a cucumber on average for 2 days. If 20 plants are planted, 18 members can be guaranteed to eat fresh cucumber every day during the winter. In addition, peppers, okra, tomatoes and watermelons were also tested, but the yield was too low and not successful.


According to reports, last year, the Antarctic Great Wall Station built the world's first solar greenhouse, relying on plant growth lamps and other greenhouse cultivation techniques to successfully grow fresh vegetables.
It is reported that this is the first time in the history of China's Antarctic Zhongshan Station to eat fresh vegetables. “The Chinese Antarctic Research Station can provide fresh vegetables for international attention, because the Antarctic self-produced vegetables means that the country’s healthy living capacity in the Antarctic has reached the forefront of the world, which can greatly extend the healthy living time of human beings in the Antarctic.†Professor of Nanchang University, Yu Wanqi, a visiting professor at the National Polar Research Center, said.
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