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1. Field selection The land with convenient drainage and irrigation, sufficient sunlight, and fertile soil should be selected. The sandy soil is better for the soil, and the culture area can be determined according to needs. Usually, 3 to 5 mu is appropriate. The outer ring trenches of 0.5m wide and 0.8m deep were excavated around the block, and a dike with a width of 0.5m and a depth of 0.6m was excavated every 2.5m on the surface. The trenches were opened into "Tian", "King", and "Well" shapes, and were reinforced with excavated earth to increase the height of the field ridges, which were 0.6 meters high and 0.5 meters wide. On each side of the block, there are a drainage system and a drainage fence and a barbed wire fence.
2, disinfection and fertilization Carp into the pool before 6 to 8 days, 50-75 kg of lime per acre after the water Quanchiposa. 4 to 5 days before entering the pond, applying 150 to 200 kg of straw per mu for high temperature treatment, and spraying in whole pond; Biological bait.
3, fish fry
In mid-August and mid-Autumn season, 2000-4000 larvae of seedlings with a size of more than 10 cm per mu were placed, and 2,500-4,000 larvae of 3 to 5 cm in length could also be directly introduced. Fry to the same size, one vote, before entering the pool seedlings with 3 ~ 4% saline immersion disinfection 3 to 5 minutes.
4, feeding and management
(1) After the bait is fed into the pond for 15 to 20 days after entering the pond, due to the small size of the fish, and the net is weak after being pulled or transported, good quality animal feed should be fed to facilitate the restoration of constitution and promotion as soon as possible. Fast growth. Afterwards, it was gradually converted into baits, animal feeds, and planktonic microorganisms cultured from straw fertilizer. Each acre of pool water can be set to 5 to 8 bait stations, daily feeding amount of concentrate in the feed 5 to 8%, the other for the rough material, eat 1 hour after feeding for the net degree.
(2) Bait type 1 straw fertilizer to cultivate microorganisms. In order to use enough straw base fertilizer, supplemented with topdressing, after the high-temperature decomposition of manure, generally Mushi dressing 50 to 100 kg. 2 animal food. Animal waste, fly maggots, silkworm cocoons, cockroaches, shellfish, etc. can be used as eel feed. 3 Prepare pellet bait. The reference formula was: corn flour 20%, wheat flour 15%, cooked soybean powder 10%, vegetable cake powder 15%, rice bran 20%, silkworm cocoon powder 12%, fishmeal 8%.
(3) Water quality management The carp is a subtropical omnivorous fish that enjoys good water, low oxygen tolerance and strong ability to adapt to the environment. As the straw is soaked in water, it will increase the content of silicon in the water. Silicon can promote the proliferation of diatoms, and the diatom is a good natural bait for salmon, so the salmon grows fast in the straw fertilizer. In order to maintain good water quality, the high temperature season generally changes the water once every 15 to 20 days, each time changing the water 1/5 to 1/3, and later use straw and high-temperature fertilizer made of fertilizer and water.
(4) Note that the anti-escape squid can “crawling†along the water, so in case of heavy rain or heavy rain, special attention must be paid to avoiding escaping. It is necessary to maintain a certain level of water in the aquaculture pond, and often check whether there are loopholes in the aquarium and the integrity of the fish stopping facilities.
(5) Disease prevention In order to prevent enteritis and black body disease in squid, the water body should be disinfected once every 7 to 10 days before June, and every 10 to 15 days after June. Each time, mu bleach 0.75- 1.0 kg or quicklime 12.5 to 15 kg watered.
Straw fertilizer and water feeding squid technology
Straw squid farming technology, stocking 2 to 3 months later, the squid tail weight of up to about 0.5 kg, 750 to 1000 kg per mu production of carp, significant economic benefits.