怎样正确使用“四合剂”四合剂又称“１２５１０剂”，是由晶体敌百虫、乐果、漂白粉和食盐四种鱼药复合而成，为防治细菌性草鱼病的良药。但在实践中必须掌握其正确的使用方法，才能起到防病治病的作用。一、四合剂配方：每５０ｋｇ草鱼用药量为：９０％的晶体敌百虫５０... How to properly use the “four-agent” four-mixture, also known as “12510 agent”, is composed of crystal trichlorfon, dimethoate, bleach and salt of four kinds of fish medicine compound for the prevention and control of bacterial grass carp disease medicine. However, in practice, we must master its correct use of methods in order to play a preventive and therapeutic role. One, four mixture formula: grass carp dosage for each 50kg: 90% of the crystal trichlorfon 50 ...