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砀山县张集村东南有30亩苇塘,多年来只植苇不养鱼,经济效益不显著。为了充分利用水体资源,发挥水体的生产潜力,1989年在该处进行了“苇藕鱼”立体生态农业模式的初步试验。 1.试验过程在苇塘西北角深水处(1米左右)植藕5亩,苇塘平均水深50厘米,苇塘四周挖环沟,沟宽4米、深1.5米左右,设有进水口和排水口,所有进入苇塘的水都经过藕池净化。 1989年4月28日在藕芽出水面时共投放大规格鱼种1.5万尾,361公斤,其中鲢鳙鱼
Dangshan County, Zhang Jiacun southeast of 30 acres of reed ponds, reed only for years did not fish, not significant economic benefits. In order to make full use of water resources and make full use of the potential of water bodies, a preliminary experiment was carried out in 1989 on the three-dimensional eco-agriculture model of “reedwort fish”. 1. Test process In the northwestern corner of the reed pond deep water (1 m) planted 5 acres of lotus root, reed pond average depth of 50 cm, reed pond surrounded by digging ditches, ditch width 4 meters, 1.5 meters deep, with inlet and outlet, All into the reed pond water after the lotus pond purification. On April 28, 1989, a total of 15,000 large-sized fingerlings were put on the surface of the lotus root shoots, with 361 kg, of which silver carp and bighead carp