LED lamps help vertical farm reduce lighting consumption

　　Most vertical farms as much as possible the use of natural light. The first commercial vertical farm in sunny , close to the equator , Singapore, founded by entrepreneur Huang Shun " This day fresh (SkyGreens)" vertical farm known as the world of the vertical farm would not need artificial light to promote crop growth.

　　In the farm , the 9 -meter-high triangular support from a lightweight aluminum structure with layers of culture trays to cultivate different kinds of vegetables , including Chinese cabbage and lettuce . Outer layer is made of lightweight Plexiglas enclosure to form a greenhouse environment . Ladder-like arrangement to ensure that all kinds of plants can receive plenty of light . Nutrient sink from the bottom of the tower, each continuously rotating shelves , shelves can go to the top when the sun to sun , high temperatures ; go to the following , then the temperature drops , the temperature difference can make fruits and vegetables more sweet .

　　Japan's Nuvege vertical farms LED lighting systems use artificial light to " take care" of two types of chlorophyll , chlorophyll they make a kind of red accepted baptism ; and let another type of chlorophyll accept the blue touch.

　　Desmond Bo Mier said: "In this way , no matter where you are , you can grow vegetables ." Indeed, in this way , Nuvege company can produce 6 million annually lettuce , whose clients include Subway and Tokyo Disney .

　　But this approach also has its own shortcomings that electricity could soar. LED can provide accurate laboratory plant crops need to grow light, but the current , LED 's efficiency is only 28% , which makes the production cost of this planting method is very high, thus blocking its spread to the pace of cheap vegetable -rich region . However, the Dutch company Philips engineers recently developed optical efficiency of 68% of the LED, the light is expected to significantly reduce costs . Further , the fluorescent lamp comprises a high pressure sodium lamp and a light source including the generation of light is expected to solve the problem , both because of its low running cost .

　　New research shows that the plant does not need artificial sunlight has been present. Desmond Bo Mier said day , the plant will enjoy the different densities of light , bright simulate these changes can save energy. Such techniques also have a place in the GSF : Researchers use infrared LED to simulate dusk jis evening , just five minutes , peppers and tomatoes will be faster into the flowering period .