29 Jan '11, 12am

Farming : Veggies from a vertical farm

SINGAPORE - Vertical farming has become a reality here, after DJ Engineering and the Agri-Food & Veterinary Authority (AVA) successfully developed a prototype that could help land-scarce Singapore maximise its production of leafy vegetables. Vegetables can now be grown in a six-metre-tall tower: Exposure to sunlight is optimised when rainwater collected in an overhead reservoir flows down through pipes, powering a wheel which rotates the stacks of vegetables a millimetre per second. DJ Engineering's managing director Jack Ng said the potential output of this system is at least five times more than that of conventional soil-based farming. For instance, a five hectare plot using this system can produce at least 2,500 tonnes of leafy vegetables compared with 500 tonnes from a conventional farm. Moreover, the tower has a low carbon footprint - the pump that pushes water up to ...

Full article: http://www.todayonline.com/Singapore/EDC110129-0000241/Ve...

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