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渔谚有“养好一塘鱼,首先要管好一池水”,而要管好一池水,经常及时地加水是培育和控制优良水质必不可少的措施,对80∶20池塘养殖冲水就更显重要。经常加注新水有以下六大好处。一是加深水位,增加了鱼类的活动空间,相对降低了鱼类的密度,池塘蓄水量增大也稳定了水质,可相对增加池塘载鱼量。二是增加了池水的透明度。加水后使池塘水色变淡,透明度增大,使光透入水的深度增加,浮游植物光合作用水层(造氧水层)增大,整个池水溶氧增加。
Fishing proverb “raise a pond fish, first of all to manage a pool of water,” and to manage a pool of water, often in a timely manner to add water is an essential measure to cultivate and control the quality of water, on the 80:20 pond breeding flush More important. There are six major benefits to frequent refilling of fresh water. First, to deepen the water level, increasing the fish’s activity space, a relatively lower density of fish, pond water storage capacity also stabilizes the water quality, can relatively increase the amount of fish in the pond. The second is to increase the transparency of water. Adding water to make the pond water color fades, transparency increases, the depth of light penetration into the water increases, phytoplankton photosynthesis water layer (oxygen water layer) increases, the entire pool of dissolved oxygen increases.