This video tells the story behind film farming, developed in Japan. The idea is that roots grow on a thin, transparent film. In the film are tiny, invisible holes, that allow water and nutrients through but block bacteria and viruses. This technology was invented by a Japanese engineer. A small firm in Hiratsuka, further developed this film in 2002 that is now patented in 130 countries. "The roots cling to the film, and absorb the water and nutrients from below", says Yoshioka Hiroshi, CEO at Mebiol.
Watch the video at www.youtube.com.