My visit to Vietnam
I visited Vietnam in September 2012 where Matthew Carr of SNV World and I set up a small duckweed production facility near Hanoi, Vietnam. This production facility consisted of 2 small wading pools filled with drinking water and one scoop of biodigester slurry. We collected Lemna duckweed from a local village pond and used it to fertilize these 2 small pools. Four days later we returned to the village and harvested the duckweed. This harvested duckweed was used to feed pigs and chickens living on site.
Good use of pig waste and low cost methods.