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,新塘每亩施碳酸氢铵6-8公斤或尿素2-4公斤,过磷酸钙或钙镁磷肥6-8公斤,硫酸钾2-4公斤或草木灰15公斤;旧鱼塘施用量可适当减 First, to a reasonable application of inorganic fertilizers and organic fertilizer 1. Inorganic fertilizer (chemical fertilizer). 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 water depth of 1.5 meters, Xintang per acre ammonium bicarbonate 6 -8 kg or urea 2-4 kg, superphosphate or calcium magnesium phosphate 6-8 kg, 2-4 kg of potassium sulfate or ash 15 kg; the amount of old fish ponds may be appropriate to reduce