经过几年的池塘养殖,池底淤泥会越积越严重,特别是广大的农村坑塘本来就不够深,致使许多养殖池塘的水位过浅,养殖空间窄小。这些池塘如果不加以改造整修,养殖环境就会恶化,养殖效率也会降低,因此在生产中我们提倡改浅塘为深水塘。在生产过程中,受资金、时间、人力等客观条件的 After several years of pond culture, the bottom of the mud will be more and more serious, especially the majority of rural pit pond was not deep enough, resulting in many aquaculture ponds too shallow, breeding space is narrow. If these ponds are not renovated and renovated, the farming environment will deteriorate and the breeding efficiency will also be reduced. Therefore, we advocate the change of shallow pond into deep pond in production. In the production process, by the financial, time, manpower and other objective conditions