春塘水暖鱼开食,施肥投饵正当时。鱼塘施禽、畜、人粪(也可施生活污水、粉浆水、绿肥等)有多种功效。主要是培养浮游植物(藻类等)和浮游动物,供鲢、鳙、罗非等鱼摄食,同时也使底栖生物得到孳生,供鲤、鲫、罗非等鱼摄食。另外,一部分有机肥里会有半消化和未消化的食物成分,可供鱼类直接食用。要做到施肥及时、合理与得法,需掌握以下要领。 Spring pond plumbing fish food, fertilizer is feeding. Fish ponds poultry, livestock, human excrement (also applied to domestic sewage, slurry water, green manure, etc.) have a variety of effects. Mainly to cultivate phytoplankton (algae, etc.) and zooplankton for feeding silver carp, pomfret, Luo Fei and other fish, but also to benthic organisms have been breeding for carp, crucian carp, Luo Fei and other fish feeding. In addition, some organic fertilizers will have semi-digested and undigested food ingredients for direct consumption by fish. To achieve timely fertilization, reasonable and effective, need to have the following essentials.