利用山区水源充足的有利条件挖塘养鱼,是农家致富的好门路。要夺取塘鱼高产,除了要有充分的氧气和适当的水温外,关键在于饲养和肥料。施肥是为了增加塘水中的营养物质,使浮游生物适度繁生,供鲢、鳙等鱼取食;同时,增加塘底有机碎屑的堆积,使底栖动物相应增多,促进底层鱼类生长。 Use of mountain water sufficient favorable conditions dig pond fish, is a good way to get rich farm. To capture the high yield of pond fish, except for adequate oxygen and proper water temperature, the key is feeding and fertilizer. Fertilization is to increase the nutrients in the pond water so that the plankton can be moderately excreted for feeding by the fish such as the silver carp and the bighead carp. At the same time, the accumulation of organic debris at the pond bottom increases the benthic fauna and promotes the growth of the bottom fish.