First, the construction of the cement pool Cement pools should be selected where possible for easy access and drainage. Before the construction of the pool, the ground is first compacted and leveled, and the horizontal difference does not exceed two centimeters. After leveling, a white anti-seepage film is laid on top and a black insulating film is placed on the anti-seepage film. The function of the impermeable membrane is to prevent the water from leaking, and the function of the thermal insulation membrane is to reduce the dissipation of heat in the tank. Practice has proved that the use of double-layered membranes can make the night temperature in the pool 2 to 3 degrees higher than the temperature in the unpatched pool. The advantage is that it promotes the growth of lotus root, prolongs the growth period of lotus root, and improves the yield and quality of lotus root. At the same time, it also promotes the growth of loach. After the double film was laid, a layer of concrete 3-5 cm high was placed on the film. The wall of the pool is made of hollow bricks (without red bricks). The height of the wall is about 60 cm. The wall is plastered with 1 layer of cement slurry to plug the loopholes to prevent water leakage and muddy escape. The cement pool is provided with a drainage outlet, the role of which is to prevent the breach of the embankment and to change the water as usual. Drain outlets are closed with stainless steel mesh nets to prevent muddy escape. Second, the planting of lotus root and the application of mud After the Dianchi Lake was built, it began filling and fertilizing. The soil is best made of organic-rich loam, and the fertilizer is mainly decomposed chicken manure, human excrement, and cow manure. The amount per acre is 1 500-2000 kg. Pig manure, dog dung, or chemical fertilizers cannot be used. Before filling, the excrement should be mixed and filled into the pool. The soil height is about 16 cm. After the soil is filled, the water is released into the pool and the time is maintained for about 1 week. The purpose is to carry out the alkali dehydration in the pool. Before and after the Ching Ming Festival, when the temperature remained above 15 °C, the planting of locusts was started, with about 200 kg per acre. Common lotus varieties are: Yugoslavian white snow, Eli 5, Hubei 17 9 and so on. The lotus planting depth is about 15 centimeters. After the planting, the loach can be placed. To choose a strong, disease-free, non-injury, uniform size, size and size of 0.5 g / tail of muddy, put per mu 6000 -1 0 0 0 tail is appropriate. Third, daily management work The day-to-day management of è—• and é³… é³… with the pool is relatively simple. 1. Control the water level. The daily water level is generally maintained at between 15 and 20 cm, and the water level during the pupa period is maintained at about 40 cm. In the hot season in July and August, pay attention to adding new water and changing water to prevent the pool from overheating and killing the mud. During the flood season, it should be drained in time to prevent flooding, lotus leaf and muddy escape. 2. Feed bait. After the loach is stocked, bran, cakes, alfalfa, animal organs, etc. may be properly fed, and each time it is generally administered at a rate of 5% to 8% of the loach's body weight. Sprinkle the fermented manure water into the ponds regularly, cultivate plankton as bait, and spray 50-1000 kg of manure per acre to provide high-quality planktonic food for the loach. 3. Mud prevention.è—• é³… é³…, é³… é³… æ± æ± pool, improve the water environment, the effect of ecological prevention is good, but we must do a good job of artificial disease prevention. Before the stocks are stocked, they are soaked in 3%-5 % salt solution for 5 minutes to kill the parasites and have a better preventive effect on the rot of the loach, skin mildew, tail ulcer and so on. Sports Accessories,High Quality Sports Accessories,Sports Accessories Details, CN Eastony Industries (NingBo) Co., LTD. , https://www.eastony.com