in order to explore a new model of circular ecological fish-vegetable farming suitable for the local area in Shijiazhuang,a experiment was carried out in 3 greenhouses with water area of 684 m2.The water volume was 828 m3,and a vegetable cultivation tank was built with water area of 2 400 m2.Fish culture and vegetable farming was integrqated and aquaculture water was recirculated through in-tensive culture in micro-flowing water,hydroponics of vegetable and tail water treatment system(nitrification bin).The average annual output of fish and vegetable was 41.2 kg/m3 and 29.8 kg/m2,respectively.In the whole process,aquaculture water was recirculating and there was zero liquid dis-charge.It was proved to be an efficient,eco-agricultural integrated production model.
维普
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