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全国闻名“鱼鳖致富”的潢川,近年采取冬放或早春放养鱼增产增收,年供商品鱼高达600万公斤,使5000个贫困户脱贫致富。其方法是: 一、鱼塘“四改”:即小改大,浅改深,死(水)改活(水),漏(水)改保(水)。若有条件,可按高标准建设高产鱼塘更好。 二、清塘清毒:宜选择晴天进行。①干法:留水深10厘米,亩用生石灰90公斤或漂白粉4公斤。②带水:留水深1米,亩用生石灰150公斤或漂白粉12公斤。③施法:可将生石灰或漂白粉加水溶化,均匀泼洒。7天后可放鱼。
Huangchuan, famous throughout the country for making fish and turtle to get rich, took part in fish production in winter and early spring to increase production and raise incomes. The annual supply of fish for commodities reached as high as 6 million kilograms, leaving 5,000 poor households to become rich. The method is: First, the fish pond “four changes”: that is small to large, shallow to deep, dead (water) to change (water), drain (water) to change the warranty (water). If conditions permit, it is better to build high-yielding fish ponds according to high standards. Second, Qing Tong Qing Po: should choose sunny days. ① dry method: water depth of 10 cm, 90 kg of lime or bleach 4 kg. ② with water: water depth of 1 meter, 150 kg of lime with bleach or 12 kg of bleach. ③ Casting: lime or bleach can be dissolved in water, even spill. After 7 days can put fish.