北方的夏季,气温、水温都高,也是池塘鱼类生长的主要季节。这个季节,搞好池塘管理可以达到增产增收的目的,否则就会出现鱼病暴发流行、鱼类缺氧浮头或者泛坑死亡等现象。因此,做好鱼塘夏季管理工作,是池塘养鱼成功与否的关键。 在生产实践中要努力做好以下几个方面的工作: 一是根据池塘主养鱼类,调节控制池水透明度(指浮游生物多少形成的水色)。主养草鱼、鲤鱼,池水透明度要大些;主养鲢鳙鱼池水透明度要小些。应从以下几个方面进行调节控制:①控制施肥的种类和数量。主养吃食鱼的池塘,在夏季尽量不施用有机 Summer in the north, temperatures, water temperatures are high, but also the main season of pond fish growth. This season, improve the management of ponds can achieve the purpose of increasing production and income, otherwise there will be outbreaks of fish diseases, fish hypoxia floating head or pan-hole death and so on. Therefore, the management of fish ponds in summer is the key to the success of pond fish farming. In production practice, efforts should be made to do the following aspects: First, according to the main pond fish, adjust the control of water transparency (refers to the formation of aquatic number of plankton). The main grass carp, carp, water transparency to be larger; the main silver carp pond water transparency to be smaller. Should be controlled from the following aspects: ① control the type and quantity of fertilization. Mainly eat fish ponds, in the summer try not to use organic