How to build pond culture in rural areas?

Choose a place with quiet environment, no pollution, running water and good water quality to build a fish pond. The fish pond is generally rectangular in east-west direction, and the water depth is about 1.5-3m. After digging the fish pond, sprinkle lime on the bottom of the pond, expose it to the sun for several days for disinfection, and clean the pond before stocking fry. The site should be selected in a place with sufficient water, pollution-free water quality and convenient transportation. Water source and water quality. A good water source is convenient to replenish fresh water frequently, to prevent the deterioration of water quality and the death of fish due to lack of oxygen. This is conducive to the growth of algae, improve the water quality of fish, and make good use of river water and reservoir water as pond water.

The area is moderate. The size of the fish pond should be about 3-5 mu and 8- 10 mu, which is suitable for the growth habits of fish and can be properly moved. The water surface is wide, which is greatly influenced by the wind, and can automatically increase the oxygen in the pool. The water depth is moderate. The depth of the fish pond is about 1.5m, the fish pond is about 2m and the fish pond is about 3m. At such a water depth, the water quality is unlikely to change dramatically, which can increase the amount of fish in the water and improve the yield and efficiency. Good soil quality. The soil quality of fish ponds must keep water well, loam is generally good, followed by clay.

Pond design. The shape of the pond is long in the east, wide in the north and south, rectangular, and the ratio of length to width is 5: 3. In this way, the pond is exposed to the sun for a long time, which is beneficial to the photosynthesis of phytoplankton and the management of aquaculture and fishing operations. The bottom of the pool should be turtle-shaped, and the whole bottom of the pool is inclined to the outlet, which is beneficial to drainage and fishing. The pond should be open, and the periphery of the pond should be relatively open. Don't plant tall trees, and don't block out the sun and wind.

A good water source is convenient to replenish fresh water frequently, to prevent the deterioration of water quality and the death of fish due to lack of oxygen. This is beneficial to the growth of algae and improves the water quality of fish. River water and reservoir water are the best sources of pond water. The depth of fish pond should be about 1.5m, about 2m and about 3m. At such a water depth, the water quality is unlikely to change dramatically, which can increase the amount of fish in the water and improve the yield and efficiency. Intensive cultivation and high-yield fish ponds have an area of about 10 mu and a water depth of 2.5-3 meters. Of course, the area and depth of different types of fish ponds will change according to different performances. When the bottom of the pond is inclined vertically, a ditch should be dug. Some places are called "fish run" or "fish ditch", and the depth is about 20-30 cm. Ditches have two functions: one is to facilitate drainage and catch bottom fish, and the other is to provide a place for fish or fingerlings not caught when the pond is dry, thus reducing casualties.