Farmers in Qingtian have kept carp in their flooded rice paddies for more than 1,200 years, where the fish eat the insects and weeds and fertilise the crop as they go. The system needs almost no pesticide and produces two harvests off one field. - Science Blog

Farmers in Qingtian's Ancient Carp Cultivation Method

Farmers in Qingtian have kept carp in their flooded rice paddies for more than 1,200 years. The fish eat insects and weeds, fertilizing the crop as they go. This system requires almost no pesticides and produces two harvests off one field.

Science Blog