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冬去春来,气温回升,处于半休眠状态的鱼类开始游动、觅食。为了夺取塘鱼高产,成鱼春季养殖要抓好7件事。1施肥当池塘水温达到5℃以上时就应施肥,以培育水中的浮游生物。一般每667m2塘面泼洒人粪尿50～100kg,或泼洒湿牲畜粪150～250kg。施用化肥时,氮、磷、钾3种肥料有效成分的?
Winter to spring, the temperature rise, in the semi-dormant state of the fish began to swim, looking for food. In order to seize the high yield of pond fish, adult fish should do a good job in spring 7 things. Fertilization When the pond water temperature reaches above 5 ℃ should be fertilized to cultivate plankton in water. Generally every 667m2 pond splashed human waste 50 ~ 100kg, or sprinkle wet livestock manure 150 ~ 250kg. Fertilizer application, nitrogen, phosphorus and potassium three kinds of fertilizer active ingredients?