1池塘条件和放养前的准备池塘条件池塘面积3.3公顷,池底平整为沙泥底质,池深1.5～2米,坡比1∶2,池角弧形。池塘进排水系统完善。冬季将池内积水排净,封闸晒池,维修堤坝闸门,清除池底污物、杂草,翻耕暴晒或反复冲洗,促进有机物分解。翌年春季,在放苗前20天左右,用生石灰85千克/6 1 pond conditions and preparation before stocking Pond conditions The pond area of ​​3.3 hectares, the bottom of the pool is smooth sand sediment, pool depth of 1.5 to 2 meters, slope ratio of 1: 2, pool angle arc. Pond drainage system improved. In winter, the pool will drain the water, seal the sun pool, repair the dams gate, remove the bottom dirt, weeds, tillage exposure or repeated washing to promote the decomposition of organic matter. The following spring, about 20 days before Fangmiao, with quicklime 85 kg / 6