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r in full biohazard gear is patrolling rows of rainbow〓 colored LED-lit shelves. The shelves stand about 2 meters and have six〓 levels, each containing trays of lettuce saplings bathing underneath t〓he light, and the room is illuminated in a psychedelic pink. A labor〓atory worker in biohazard gear checks the growth of lettuce in the vert〓ical farm in Anxi, Fujian province. ZHAN ZHUO / FOR CHINA DAILY This i〓s no scene from a science fiction movb

ie, but a common sight for scienti〓sts at a plant factory in Anxi, Fujian province, which covers 1 hectare〓 and is the largest vertical farming complex in the world. The second-l〓argest is a 0.64 hectare farm in Newark, New Jersey. Vertical farming 〓is the practice of growing vegetables and fruits in vertically stacked 〓layers of hydroponic solutions in a controlled, indoor environment. It 〓does not require soil, sun or pesticides, and uses far less water and f〓ertilizer than conventional D

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    farms. However, the farm's high-energy cos〓t has greatly limited its scale and profitability. In recent years, Chi〓nese scientists at the Anxi plant factory have mitigated the issue by i〓nventing energy efficient LEDs and recyclable hydroponic solutions, as 〓well as new energy-conserving methods to maximize a plant's growth pote〓ntial. San'an Sino-Science, the company behind the project, says these〓 new methods have cut the factory's overall eneG

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    rgy consumption by 25 pe〓rcent compared with its first facility. "We hope to cut more energy so〓 vertical farming can become a viable way to feed our population withou〓t polluting and straining our already scarce water and soil resources,"〓 the factory's executive manager, Zhan Zhuo, said. "The technology wou〓ld also allow astronauts, aircraft carrier personnel, and frontier guar〓ds on islands or in deserts to grow fresh produce in impossible coG

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