How to match fish culture in fish ponds is more appropriate.

1, thoroughly clean and disinfect the pond. One-time application of base fertilizer. When fish enter tang qian, it is necessary to dredge the water injection and drainage channels and remove excessive silt in the pond. When the water depth is 20 cm, each mu of fish pond is disinfected with 100 kg of quicklime to kill pests, germs and microorganisms, and then 500 kg of decomposed human and animal manure is applied as base fertilizer. Then the water storage depth is 2 ~ 2.5 meters, and after 1 week, the fish will be released after the medicinal properties disappear.

2. Increase stocking specifications. Put in "two kinds of fish". The survival rate of large fish species is high, and the commodity specifications of the pond can be guaranteed. Therefore, the best stocking specifications are grass carp 200-400g, silver carp and bighead carp 100-300g and carp 50- 150g.

3. Reasonable collocation and polyculture. Implement three-dimensional fish farming. In order to make full use of water space and natural bait, it is necessary to cultivate "fat fish" such as silver carp, bighead carp and tilapia, and "fish-eating fish" such as grass, carp and bream. There are 200 ~ 1 500 fish per mu, of which grass carp accounts for 40%, silver carp for 40%, carp, crucian carp, bream and tilapia for 20%, and the total stocking amount per mu is about 1.50 kg.