As early as the clear pond will drain the pond water, when the temperature is high at noon on sunny days, 150 kg of lime will be sprayed on the whole pool with water to control the water quality. When there is no lime, it can also be disinfected with bleaching powder and other drugs. At the same time, the equipment such as collapse pools and inlets and drains can be properly repaired.
After 7 days of clearing the fish, the drug disappeared and the fish species could be released. When the seedlings are released, they should be selected for reasonable matching with the main fish. Grass carp, carp, carp and other specifications should be more than 15 cm, carp 6 cm or more. Fish should be healthy, lively and non-invasive.
After the early fertilization and feeding of the clear pond, the basal fertilizer shall be applied immediately to fertilize the water quality. Mu Shi quality organic fertilizer 1000 kg, or with the application of 5 kg of inorganic fertilizer. General basal fertilizer should account for 25%~30% of the total fertilization amount in the year. Early fertilization will not only make the fish have enough food, but at the same time, the fertilizer and water will also be very beneficial to rapidly increase the water temperature and accelerate the growth of fish. After the fingerlings are released, they should be bred with high-quality bait to start eating. The bait should be put in the water of the sunny leeward, and then gradually induced into the feed table to feed. The amount of bait is about 2% of the total weight, and the daily feeding is 1~2. Times.
After the water was transferred early in the spring, as the temperature and temperature of the water gradually increased, fish food organisms began to multiply. If water quality is found to be aging and acidic, water quality should be adjusted in time. New water of 20cm depth can be injected, and 20kg-30kg of lime can be splashed per acre to maintain a moderate fertility and water quality. The transparency should be within 30cm to 40cm. Centimeter is appropriate.
Early water injection Early spring water temperature is too low, individual fish species are small, activities are less, food intake is not large, fish pond water volume should not be too deep, generally controlled at about 1 meter, with the rise of water temperature and the growth of color body gradually Deepen the pond water.
As early as the disease rises with the temperature of water, fish disease has begun to increase. In addition to disinfecting and preventing ponds before stocking, the following points must be made:
Fish species are immersed with potassium permanganate or salt water before entering the pool; every 15 days to 20 days, the whole pool of bleaching solution is sprayed evenly once, so that the concentration of the water in the pool reaches 1 PPM; the food bait is often removed. Add new water regularly to prevent deterioration of water quality.
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