Dry Hydroponics

Our second visit was to see how dry hydroponics worked. It was all a very simple system, the company build ponds about 50cm deep and put raft systems on the water. On the rafts u place the produce (lettuce) and then let it grow. There is no flow needed, no chemicals just water movement, this is done for 10 minutes every hour in each pond. Very low energy needed, the ponds are flushed out about every 1-2 years.
At the moment the predominately have grown lettuce but they are now trailing, basil, leeks, bok choy and cabbage.