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笔者于2003-2004年在邵武市近郊进行了“老头”欧鳗土池养成试验,获得了较好的效果,现将试验报告如下。1材料与方法1.1池塘条件试验塘3口,东西走向,长方形,长宽比为2:1,每口面积3335m2,池堤坡度1:0.75,池底为粘土,保水性能较好。水源为同青溪水和山垅水,水源充足,水质无污染,水的pH值为6.0-6.5,经使用生石灰调整pH
The author in 2003-2004 in Shaowu suburbs for the “old man” eel earthen pond cultivation test, obtained good results, now the test report is as follows. 1 Materials and methods 1.1 Pond conditions Test ponds 3, east-west, rectangular, aspect ratio of 2: 1, each port area of 3335m2, pond bank slope of 1: 0.75, the bottom of the clay, better water retention. The water source is the same as the Qingxi water and mountain water, adequate water, pollution-free water, the pH of the water is 6.0-6.5, adjust the pH using quick lime