To train people for agriculture careers, a Japanese staffing company has built an urban farm in a Tokyo office tower basement. The project, called Pasona O₂ is growing more than 1000 sqare meters of plants without natural sunlight in the basement of the 27-story Otemachi Nomura Building in Tokyo’s Otemachi district. The plants are sustained by artificial light from light-emitting diodes, metal halide lamps, and high-pressure sodium vapor lamps. The temperature of the room is controlled by computer, and the vegetables are grown by a pesticide-free method in which fertilizer and carbon dioxide are delivered by spraying.The “field” grows tomatoes, lettuces, strawberries, flowers and herbs and there’s a terraced paddy field used to grow rice.

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