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鱼苗池中如生有大量水网藻,不仅直接危害鱼苗和早期夏花鱼种,同时也消耗水中的养料,使池水急骤变瘦,鱼苗所需的浮游生物不能大量繁殖,影响鱼苗的生长,一旦鱼苗游入其中,往往被困住而致死。 预防水网藻萌发繁殖,主要是在注水前用生石灰彻底清塘,每 667平方米 (亩 )
If the fish fry pool has a large number of Hydrilla verticillata, not only directly endanger the fry and early summer flowers species, but also consume nutrients in the water, so that the water suddenly thinner, fry plankton required for large-scale breeding, affecting fry growth, Once the fry swim into them, they are often trapped and killed. Prevent the hydatid seaweed germination and breeding, mainly in the clear water before using clear lime pond, every 667 square meters (mu)