1早清塘,保健康一般应选择头年底或是春节后,将准备养殖的水塘清干,每亩洒干石灰60~100kg,曝晒半个月至一月以上,能有效杀死池底的病毒、害虫、杂鱼等,提高水体硬度,优化水质。2培肥水,促鱼长选择4月上中旬对鱼塘注入清水。在注入新水的同时,要防止杂鱼、害虫入池,水深保持在50~80cm,为之后拉网操作提供方便。进入4月底至水花苗入塘前,必须将池水培肥,一般选择洒大粪、堆有机肥等 1 early Qing Tong, health care should generally choose the end of the first year or after the Spring Festival, the ponds will be prepared for breeding dry, sprinkle dry lime per acre 60 ~ 100kg, exposure for half a month to January, can effectively kill the bottom Viruses, pests, trash, etc., to improve water hardness, optimize water quality. 2 Fertilizer water, promote fish long choice in mid-April on the fish ponds into the water. In the new water into the same time, to prevent trash, pests into the pool, the water depth maintained at 50 ~ 80cm, after pulling net operation to provide convenience. Into the end of April to Miao Miaotang before the pond water must be fertilized, the general choice sprinkle dung, piles of organic fertilizer