节粮养殖四法１．化肥养鱼：化肥养鱼具有运输方便，施用简单，养分含量高，不含有机物，不消耗水中溶氧，不污染水体，见效快，效益高等优点。一般成鱼塘使用一公斤尿素可长鱼１．５公斤，施用碳铵或磷酸钙一公斤可长鱼一公斤左右。化肥属于速效肥料，养鱼常用的有尿素、... Four methods of grain culture 1. Fertilizer fish: Fertilizer fish with easy transportation, simple application, high nutrient content, non-organic matter, do not consume dissolved oxygen in the water, do not pollute the water, quick, high efficiency advantages. The general use of one kilogram of fish ponds can be 1.5 kilograms of long-handled fish, use of ammonium bicarbonate or calcium phosphate kilograms of fish can be about one kilogram. Fertilizer is a quick fertilizer, fish are commonly used in urea, ...