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石灰在池塘养鱼生产上有重要的作用。1.石灰是清塘消毒和防治鱼病的药物池塘施用生石灰后,生石灰与水作用,放出热量,生成氢氧化钙,使池水 pH 值急剧上升到11～12,能杀死池塘中的害鱼、蛙卵、蝌蚪、螺、蚌、蚬、蚂蟥、虾、蟹、青泥苔和一些根浅茎软的水草,能杀灭潜藏和繁生于淤泥中的鱼类寄生虫、病原菌和对鱼类有害的昆虫及其幼虫等。干法清塘一般每亩用生石灰50～80公斤,带水清塘(水深1
Lime in the pond fish production has an important role. 1. Lime is a clear pond disinfection and prevention and treatment of fish diseases after the application of quicklime lime, the role of lime and water, release heat, generate calcium hydroxide, the water pH value rose sharply to 11 to 12, can kill pond fish , Frog eggs, tadpoles, snails, mussels, jackals, leech, shrimp, crabs, algae moss and some shallow roots and soft aquatic plants that kill fish parasites, pathogens and fish that kill and breed in the silt Harmful insects and their larvae. Dry ponds generally use lime per acre 50 to 80 kg, with water ponds (water depth 1