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TINA LIU 10B
soilless culture (Hydroponics)
Before the journal begins,I want to show you a piece of news:
中山站：打造南极温室“生态园” Zhongshan Railway Station: build the Antarctic ecological park " greenhouse "
Xinhua at Zhongshan station, Antarctica, February 7 - (reporter Baiyang) green lettuce, fresh cucumber, polished cherry tomatoes. Once upon a time, eat fresh vegetables is the Antarctic scientific expedition team is the one of "luxury" dream now thanks to advanced cultivation technique in greenhouse, the dream is Chinese Antarctic scientific expedition station gradually become a reality.
The supply of fresh vegetables is always plagued China's Antarctic expedition, persistent problems, especially the Zhongshan station, a year to vegetables alone, "Snow Dragon from domestic and Australia via national supply and in the Antarctic summer supplies two, not only costly, and storage limited. When into the S pole of the long winter, the expedition team can only rely on Chinese cabbage and a limited number of winter vegetables.
Therefore, during the thirty first Chinese Antarctic expedition, as the 2014 National Science and technology support program, one of the "Antarctic extreme greenhouse environment vegetable production key technology research and demonstration" project, in the Zhongshan station and the Great Wall station while carrying out the early experimental research.
Reporters recently in Zhongshan Station of greenhouse vegetables in the lab, see room 16 square metres of green and luxuriant growth of nearly 20 kinds of vegetables, winding vines crawling across the roof, one faction vibrant scene.
According to the site of the project execution, China the 31st Antarctic expedition team members Yan Feng Cheng, the greenhouse with no soil cultivation, under the control of the computer, led plant growth lamp can according to vegetable growth automatically adjust lighting long; automatic irrigation system, every one hour to the inside of the water tank into nutrient solution; when the humidity in the room below 70%, humidification system will to the room spray mist.
It is reported that the planting of vegetables is a short growth cycle, low difficulty of cultivation varieties, the current growth is expected to achieve the basic. In cucumber, for example, a tree of cucumber vine average 2 days can harvest a cucumber root, if planted 20 trees, can guarantee the 18 wintering expeditioners in this year during the overwintering period every day to eat fresh cucumber. On the basis of existing varieties, the future will test planting apple, strawberry, peach, difficulty of cultivation of larger fruits.
Yan Feng Cheng said, Zhongshan Station greenhouse location and graphic design work has been completed, and during the 32nd Chinese Antarctic expedition to start construction. Different with ordinary greenhouse, future the establishment of greenhouse in the special environment of the Antarctic continent will use high strength, low energy consumption of modern greenhouse structure, area of up to hundreds of square meters. In addition to meet the daily supply of fruits and vegetables, greenhouses can plant some ornamental plants.
"Our ultimate goal not only is a vegetable greenhouses built, more is to build an Antarctic" ecological park ", for those in the 'white desert' hard expedition team work provides a paradise to relax." Yanfeng said.
I choice the technology is soilless culture （hydroponics ）, that is a subset of hydroculture and is a method of growing plants using mineral nutrient solutions, in water, without soil. As you can see,in front of the news from Zhongshan railway station that uses soilless culture successful in the South Pole.In there,they can eat fresh vegetables and fruits.All of them are depends on the success of this technology:soilless culture.
The earliest invention in 1699. It is undeniable that has many advantages,for example it is convenent and clear,you can use it to grow plants without soil,so you don’t need to regular watering.It will become more and more common in our daily life.From another perspective, soilless culture can save water to protect the environment. Also It is not subject to weather.
Watch this video,how wonderful is! Hydroponics that can be industrialized production in a large greenhouse or anywhere.Not only can save labor.But also we can use the technology to change the volume of the nutrient solution,then improve the production capacity .In fact,most thing is that can overcome the shortage of land resources.I believe this technology will be used more widely.
Some informations: https://en.wikipedia.org/wiki/Hydroponics
news:http://news.xinhuanet.com/2015-02/07/c_1114290885.htmnews.xinhuanet.com/2015-02/07/c_1114290885.htm long winter, the expedition team can only rely on Chinese cabbage and a limited number of winter vegetables.
"Our ultimate goal not only is a veg