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如何改造低产鱼塘 池塘条件的优劣将直接影响养鱼效益,因此,及时改造低产鱼塘,不失为良策。1 改造小鱼塘 鱼谚称,宽水养大鱼。因此要根据池塘所处的地理位置及条件,拆埂并塘,或将小塘周围的泥土挖去,使小塘成为大塘。一般要求育花池面积为0.06～0.12hm~2;鱼种池面积为0.12～0.32hm~2;成鱼池面积为0.33～1hm~2。2 改造浅水塘 在成鱼捕捞或鱼种出售后,排掉塘水,将淤泥和一部分底泥挖去,加固加宽加高池埂,以增加塘口水深,扩大鱼的活动空间。一般要求鱼种池水深1.5m左右,成鱼池水深2.5m左右。
How to reform the conditions of low production ponds and ponds will directly affect the quality of fish farming, therefore, timely transformation of low-yielding fish ponds, after all, a good strategy. 1 Renovation of small fish ponds Fish said, wide water raise big fish. Therefore, according to the geographical location and conditions of the pond, the ponds should be demolished and dredged, or the soil around the ponds should be dredged to make Xiaotang a big pond. Generally, the area of the flower pond is 0.06 ~ 0.12hm ~ 2; the area of the fish pond is 0.12 ~ 0.32hm ~ 2; the area of the pond is 0.33 ~ 1hm ~ 2.2 After the shallow ponds are rebuilt, Out of pond water, the mud and some of the sediment dredged to strengthen the widening and pool Gao, in order to increase the pond mouth water depth, expand the fish space. The general requirements of fish pond water depth of about 1.5m into a fish pond water depth of about 2.5m.