Operation of a conventional fishing pond for planting and rearing
First, pond preparation. The pond area is 2 to 5 mu and the average water depth is 1.2 meters. The water source is required to be free of pollution, and the injection and drainage are convenient. According to conventional requirements, ponds are planted and the lotus leaf covers an area of ​​about 50% of the whole pond. Before stocking, 180 kg of lime per acre was used to sputter the entire pond and kill wild fish and pathogens in the pond. After the efficacy disappeared, 1,000 kg of organic fertilizer was applied per acre, and the fry was released 7 days later.
Second, conventional fish stocking. During the period from April to April, large-scale fish species with a tail weight of more than 100 grams were stocked, and 400 fish were stocked per acre, of which 50% were carp, 30% were carp, and 20% were carp. Herbivorous fish should not be put in place to prevent the eating of axillary bud leaves; avoid feeding carnivorous species so as not to compete with Astragalus for bait and kill each other.
Third, seedlings put. Scutellariae seedlings are released 20 to 30 days after the conventional fish ponds. Put the seedlings required bright body color, rich mucus, strong activity, and neat specifications. Put 25-30 grams of seedlings of 20-30 kg per acre. Disinfect it with 3% saline solution for 15-20 minutes before putting it into the pond.
Fourth, feeding and management. Astragalus staple foods such as quail, clams, and small fishes can be fed with 10 to 15 kilograms of each of the ear fish and loach, and the juveniles that are bred are used as animal feed for the scutellaria baicalensis. On the day the fish species were released, 500 kg of organic manure was applied per acre.
In the summer, inorganic fertilizer was used as the main ingredient. In the morning, 5 kg of superphosphate was used per mu, and 2 kg of urea was used per mu the next morning. Quanhua Quanhua was splashed with water (amount of ammonium bicarbonate was banned). Fertilize once every 10-15 days.
In the autumn, too many floating leaves and aging early leaves are removed in time to maintain the ventilation and ventilation of the pool. At this time, 50 to 100 kg of fermented and decomposed organic fertilizer is applied to each acre pond.
In addition to the regular fertilization of live feeds, such as hydrolysed silkworms, feeds must be fed regularly every day, and feeds can be made using homemade pellet feeds such as pancakes, corn, bran, fish meal, and vitamin supplements. 2 times a day, it is advisable to eat within 2 hours.
During the summer and hot seasons, the water is changed once a week, some old water is drained, and new water is added. In the event of an oxygen-depleted floating head, the oxygen aerator is rapidly turned on and new water is added in time. Disinfect the pool water every 3 weeks starting from June. Use 20 kg of quick lime or 1 kg of bleaching powder per acre. Splashing fishery drugs should be staggered with fertilization.
Fifth, timely fishing. The catch of the fish stays small, and in late August, the adult fish with a tail weight of 1 kilogram or more is caught on the market with a big eye pulling net. Astragalus can use trapping cage trapping method to catch large and stay small, and finally dry pond catch net. In late November, the Huangpi fishing starts with a pool of mud from the pool corner, and then uses both hands to turn mud around and harvest lotus roots.
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