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淮北采煤塌陷区的养鱼池塘,由于面大水阔、深浅不一,历来散放粗养,难得高产,一般亩产仅150千克左右,亩纯收益仅350元左右。1992年我们进行了“集约化、高密度、塘网结合、立体精养高产配套技术研究”。经一年试验,实现塘网同步增产。平均亩产成鱼1482.65千克,净产1164.89千克,亩产值高达8600元。亩纯收益2549元。产量、产值、纯收益比原来分别增长8.9、19.1、6.3倍。其中网箱平均每箱产罗非鱼267.56千克(净产188.99千克)。其具体做法如下:
The fish ponds in the subsidence area of Huaibei Coal Mining Area have always spread uncultivated areas and have rare high yield due to the vast water surface and the shallow depth. The average mu yield is only about 150 kg, and the net profit of mu is only 350 yuan. In 1992, we carried out “Intensive, high-density, pond network, three-dimensional intensive high-yielding supporting technology research.” After a year of testing, Tong net synchronization production. The average mu produce fish 1482.65 kilograms, net production 1164.89 kilograms, the mu output value amounts to 8600 yuan. Mu net income 2549 yuan. Output, output value, net income increased by 8.9,19.1 times, 6.3 times. The cages average 267.56 kg of tilapia (net yield 188.99 kg). The specific practices are as follows: