Rice-fish farming is a traditional farming culture in China. It is an organic combination of crop farming and aquaculture. By building certain forms of rice-fish farming projects in paddy fields, we have established a rice-fish ecosystem that is symbiotic, interdependent, and mutually promoted. Breeding system. The fish farming rice paddies should select paddy fields with sufficient water sources, good water quality, no pollution, convenient irrigation and drainage, and free from flooding and water leakage.
1. Excavate the fish ditch and excavate the ring field fish ditch in the area 80-100 cm away from the fish farming paddy fields. The fish ditch is 30 cm deep and 40 cm wide, and the “Ten†and “well†are excavated according to the size of the plot. "Fish-shaped center fish ditch, while digging a deep one meter deep in the center of Tianjiao or Tian Tian near the water inlet, an area of ​​about 3-5 square meters large fish pit to prepare for fish habitat. To prevent the escape of fish, fish traps must be installed at the inlet and outlet before stocking. More than 60 pounds of quicklime is used for disinfection per acre of paddy field. There should be no accumulation of water in the field when lime is sprayed, and the fish should be irrigated one week after spreading.
Second, stocking density and time Paddy fish farming is a kind of extensive farming methods, usually a fish as the main breeding object, stocking species are generally carp, grass carp, carp, tilapia, size is generally about two to three is appropriate . The stocking time of fingerlings is generally about 20 days after planting. In general, 700-1000 fish species can be stocked with 2 to 3 fish per acre. Precautions for fish release: For rice fields using chemical fertilizers as base fertilizers, fish species should be released after the toxicity of chemical fertilizers disappears. Before the fish is released, test the water with a few fish fry and let it be stocked if no death occurs. Pay special attention to the difference in water temperature, that is, the difference between the water temperature in the fish transporter and the paddy field water temperature should not be greater than 3°C. Therefore, in the transport of fry or fingerlings, some paddy field water should be added first, and if necessary, water should be added several times to make the water temperature. When it is basically the same, then slowly pour the fish into the fish slip or fish ditch, allowing the fish to freely swim throughout the rice field.
Third, the daily management and management work is the key to the success of fish farming in rice fields. In order to achieve better breeding results, we must do a good job in the following tasks: regular inspections, good management of water, feeding, fertilizing, pesticides, flood control, drought prevention, etc. Anti-escape, damage prevention, anti-theft and other work.
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