鱼塘施肥要点一、要合理施用无机肥和有机肥。１．无机肥（化学肥料）。鱼塘需施用含有氮、磷、钾、钙、硅等元素的多种无机肥，其用量是：基肥于放鱼种以前施，以平均水深１．５米计算，新塘每６６７ｍ２（亩）施碳酸氢铵６～８千克或尿素２～４千克或草木灰１５千克；旧... Fertilization point of a fish pond, to the rational use of inorganic fertilizers and organic fertilizer. 1. Inorganic fertilizers (chemical fertilizers). Fish ponds need to use a variety of inorganic fertilizers containing nitrogen, phosphorus, potassium, calcium, silicon and other elements, the amount is: base fertilizer before the fish species, with an average depth of 1.5 meters, Xintang every 667m2 (mu) Apply ammonium bicarbonate 6 to 8 kg or urea 2 to 4 kg or 15 kg of ash ...