新挖鱼塘要实现当年投资当年受益就必须把握以下技术措施:(一)浸塘消毒。在放鱼前,将新挖的鱼塘注满无污染的水,浸泡3—5天后排掉,然后再灌满水重复一次,即可除去危害鱼体的重金属离子或其它有害物质。(二)养殖模式。新挖鱼塘最好以草食性(如草鱼、鳊鱼)为主养鱼类,适当搭配滤食性(如花、白鲢)和杂食性(边鲤、鲫)鱼类的成鱼养殖,而不宜 New fish ponds to achieve the current year to invest in the benefits must grasp the following technical measures: (A) Dip Tong disinfection. Prior to releasing the fish, the newly excavated fish ponds shall be filled with clean water, drained 3-5 days later, and then filled up with water to remove the heavy metal ions or other harmful substances that endanger the fish. (B) farming model. The new fish ponds are best herbivores (such as grass carp, mackerel) mainly fish, appropriate filter filter (such as flowers, silver carp) and omnivorous (side carp, crucian carp) fish farming, and should not