水库鱼产量仅靠天然饵料是满足不了人们的要求的。要想提高水库鱼产量就必须对水库水体投放一定的物质以增加或培育水体中的饵料生物来满足鱼类的需要。而目前最经济、最有效、最实用的方法是在养鱼水库内投施一定量的肥料,通过人工手段培育水质,促进水库中浮游动植物大量繁殖,使鲢、鳙鱼等滤水性鱼类有较充足的饵料。同时也促进水生植物、固着生物、底栖动物等大量繁殖,又可为草、鲴、鲤、鲫、青鱼提供部分饵料,提高鱼产量。现将化肥养鱼技术要点介绍如下: Reservoir fish production alone can not meet people’s requirements. In order to improve the production of reservoir fish, it is necessary to put certain materials on the reservoir water body to increase or cultivate the food organisms in the water body to meet the needs of fish. However, at present, the most economical, effective and practical method is to apply a certain amount of fertilizers in fish culture reservoirs and cultivate water quality by artificial means so as to promote the large-scale propagation of plankton and plants in reservoirs, so that fish such as silver carp and bighead carp Have more adequate food. At the same time, it also promotes the massive breeding of aquatic plants, anchorage organisms and zoobenthos, and also provides partial feed for grass, shrimp, carp, crucian carp and black carp to increase fish production. Now fertilizer technology points are as follows: