冬去春来,气温回升,处于半休眠状态的鱼类开始游动,觅食。为夺取塘鱼高产,成鱼春季养殖应做到以下几点。一、施肥。当池塘水温达到5!以上时,就应施肥,以培育水中浮游生物。一般每667平方米塘面,可泼洒人粪尿50“100千克,或湿性畜粪150”250千克。施用化肥,氮、磷、钾三种肥料有效 Winter to spring, the temperature rise, in the semi-dormant state of the fish began to swim, foraging. To capture the high yield of fish ponds, adult fish should be done in spring breeding the following points. First, fertilization. When the pond water temperature reaches 5! Above, should fertilize, in order to cultivate plankton in water. Generally every 667 square meters of pond surface, sprinkle manure 50 “100 kg, or wet dung 150 ” 250 kg. Application of fertilizer, nitrogen, phosphorus and potassium three kinds of fertilizer effective