池塘主施高效鱼肥精推广效益分析李红炳，李文亮（湖南省沅江市水产科技推广站４１３１００）近几年来，池塘养鱼发展迅速，养殖水平越来越高，但就整个养鱼效益来看，提高的幅度还相当小，挖掘的潜力还相当大。为了适应市场的变化，提高养鱼经济效益，特别是较大幅度大面... Benefit Analysis of Benefits of Highly Effective Fish Fat Fertilization in Ponds LI Hong-bing, LI Wen-liang (Aquatic Science and Technology Extension Station, Yuanjiang City, Hunan Province 413100) In recent years, the rapid development of fish farming in ponds has led to a higher level of aquaculture. However, The rate of increase is still quite small, and the potential for excavation is still considerable. In order to adapt to changes in the market and improve the economic benefits of fish farming, especially in the larger scale ...