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随着稻田养鱼技术的不断改进和提高,稻田养鱼产量也不断上升。但从大面积来看,产量的提高幅度还较小。因此要提高田鱼产量,主要还在于提高田鱼的成活率。如何才能提高田鱼的成活率呢?除了稻田要按标准改造外,还要做到: (一)合理搭配鱼种,控制放养密度。3月中下旬以前投放春片鱼种。以亩产鱼50—70公斤、主养草鱼、鲤鱼为例,一般亩投放20厘米以上草鱼10—20尾,13—16厘米草鱼40—50尾。7-10厘米鲤鱼50—80尾,13—17厘米鲤鱼50尾,10—12厘米鲂鱼20—40尾,并可兼放6—13厘米罗非鱼
With the continuous improvement and improvement of paddy field fish farming, the output of fish farming in paddy fields has also been on the rise. However, from a large area, the yield increase is still small. Therefore, to increase the production of field fish, mainly lies in raising the survival rate of field fish. How to improve the survival rate of field fish do? In addition to paddy fields to be transformed according to the standard, but also to do: (a) reasonable with fish species, stocking density control. In late March put spring before the species. To 50-70 kg per mu of fish, the main grass carp, carp, for example, put more than 20 cm grass carp 10-20, 13-16 cm grass carp 40-50 tail. 50-70 tail of carp, 7-10 cm of carp, 50 of 13-17 cm of carp, 20-40 of 10-12 cm of anchovy and 6-13 cm of tilapia