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要使新挖鱼塘当年养鱼获高产,除按常规管理外,还应重点抓好以下几项技术措施:1彻底清塘消毒在放养鱼苗之前必须用清水浸泡洗塘,即将准备养鱼的新挖塘灌满清水,浸泡数天后排掉,曝晒数日后再重复浸洗1次。这样可以清除危害鱼体的重金属盐和有毒物质。在放养鱼种前7～10天用生石灰彻底消毒,以改良池塘底质。干塘每667 m~2用生石灰75 kg化浆全池匀洒,或带水按每667 m~2水深1 m用生石灰150 kg化水全池泼洒。杀灭病原物。
To make new fish ponds were high-yielding fish, in addition to conventional management, but also should focus on the following technical measures: A thorough disinfection of ponds Before stocking fish fry must be soaked in clean water ponds, about to prepare fish The new dig pond filled with water, soak a few days after the exposure, and then repeatedly dipped a few days after exposure. This removes heavy metal salts and toxic substances that are harmful to the fish. 7 to 10 days prior to stocking fish with lime thoroughly disinfected to improve pond sediment. Dry pond every 667 m ~ 2 75 kg of lime with a full pond uniform sprinkler, or with water per 667 m ~ 2 depth of 1 m with lime 150 kg of water Quanchiposa. Kill the pathogen