一、材料与方法1.池塘准备(1)池塘条件试验在洪门养殖场1号池、2号池进行,面积分别为8.75亩和5亩,水深2米,池底平坦,底淤10厘米,水源充足,水质良好,每塘备一台3千瓦叶轮式增氧机。(2)池塘清整、消毒2004年5月10日清整鱼塘,挖掉过多淤泥,干池曝晒,6月9日用生石灰125千克/亩干法 I. Materials and methods 1. Pond preparation (1) The pond condition test is carried out in pool No. 1 and pool No. 2 of Hongmen Farm with area of ​​8.75 mu and 5 mu respectively, with a depth of 2 meters, a flat bottom and a silt bottom of 10 cm , Adequate water, good water quality, each pond prepared a 3 kW impeller aerator. (2) pond cleaning, disinfection May 10, 2004 to clear the ponds, dredged too much mud, dry pool exposure, on June 9 125 kg / mu of quick lime method