沼气肥富含氮、磷、钾和无机盐类。投施后,池水经3-5天水色转绿,浮游生物繁殖快,不仅接受阳光和热量增加,而且含氧量和水温也逐渐提高,对鱼类生长发育有利。同时来料广,成本低,效益高,又不污染环境。 Biogas fertilizer is rich in nitrogen, phosphorus, potassium and inorganic salts. After the application, the water turns green by 3-5 days of water color, and the plankton multiply fast, which not only receives the increase of sunshine and heat, but also gradually increases the oxygen content and water temperature, which is beneficial to the growth and development of fish. At the same time incoming wide, low cost, high efficiency, but also do not pollute the environment.