How to culture yellow peony in the garden

Astragalus, also known as squid or long fish, has a delicate flesh, delicious taste and less spurs. It is rich in protein and vitamins, and it is popular among domestic consumers. It is one of the major varieties of export of aquatic products in China. Garden cultured yellow peony, less investment, quick effect, large profits.

First, the construction of courtyard ponds

Astragalus breeding pond should be built in a place sheltered from the sun and near the water source. Garden culture, optional in the front of the house behind the earth pit, ditch and Tanabe soil corner, etc., to facilitate feeding and management. Dianchi Lake can be built as a ground pool or a semi-underground pool. The area is generally 10 to 20 square meters, the depth of the pool is 1 to 1.5 meters, and the shape is rectangular, square or oval. One end of the tank is equipped with a water inlet pipe, and the other end is equipped with a drainage pipe. In order to prevent the escape of the jaundice, the top of the pool wall should be made of "T" shape with bricks, and the drain pipe must be closed with wire mesh to prevent the yellow locust from fleeing.

After the Dianchi Lake is cleaned and disinfected, a layer of 30 cm thick, soft and hard, suitable for containing more river mud or soil made from grass and cow dung is laid on the bottom to create a comfortable artificial nest. Add new water 5 to 15 cm. Finally plant aquatic plants on the surface of the pond, such as Ling Bai, water lettuce, water peanuts, etc. The area should not exceed 50%. This can not only shade the yellow peony, but also reduce the water temperature, which is conducive to the growth of jaundice.

Second, the source of seedlings and stocking

1. Seed sources: Currently, there are two main sources of seedlings for raising jaundice. (1) Capture in nature: According to the characteristics of the yellow toads searching for food at night and seeing no light, it can be directly captured by torches and torches at night; it can also be filled with fresh feed to attract yellow quail cages. Capture; you can also find holes in the rice fields, ditch, and ponds during the day and capture them by hand. (2) Market Purchasing: In the market, choose a healthy and harmless body, swimming and lively, neat specifications, muscle hypertrophy, and no parasites on the body surface. The body surface is white, broken skin, broken tail, mouth and shin injuries, are not suitable for purchase.

2. Seed stocking: After raising the water in the rearing pond, it can be fed when the water temperature rises above 15°C. Before stocking, they should be soaked with 10ppm bleaching powder or 3%-5% saline for 15-20 minutes to kill pathogens on the body surface. For 30 to 40 larvae per kilogram, the stocking density is 50 to 150 or 2 to 4 kilograms per square meter. At the same time, 8-10 muddy louse can be provided for every square meter, which is conducive to the full use of feed and improving the water environment.

Third, feeding and management

1. Astragalus feed types: Astragalus is a meat-based omnivorous fish, especially like to eat fresh feed, such as small fish, shrimp, clams, fly pupae, insects, snail meat, silkworm cocoons, livestock meat and other dirty . Can also be fed some vegetable feed, such as rice bran, wheat bran, bean dregs, fruits and so on. Formula feed can also be fed.

2. Feeding techniques: Astragalus starts feeding at temperatures above 15°C and feeds at 25% to 30°C. Therefore, the period from May to September is the peak of food intake, and it is necessary to step up feeding during the growing season. Generally, the amount of feed is 3% to 5% of the fish's body weight. In the peak season of 6-8 months, the amount of feed can be increased to 6% to 7%. Feeding 1 or 2 times a day should be done regularly, quantitatively and at a given point. Feeding methods can be fed at the feed station. Feed can not be put too much, to be eaten on the same day, otherwise it is a waste of feed, but also corrupt water quality. When the water temperature drops below 15°C, little or no feeding is possible.

3. Water quality regulation: Astragalus prefers to live in a water body with fresh water and adequate dissolved oxygen. Its growth and development will be severely affected under hypoxic conditions. Especially in the summer of high temperature and low pressure, anoxic phenomena easily occur. When it was found that the head of the acarus was often stuck out of the hole and the food intake was reduced, it meant that the water was deprived of oxygen and the pool water should be replaced in time. In the spring and autumn, 6 to 8 days, the water changes 1 time, and in the summer, 2 to 3 days, the water changes 1 time. If there is a long-term injection of microfluidic water, it is ideal. At the same time, the residual baits and “miscellaneous materials” in the pool should be removed daily to keep the water fresh. The water level of the fish pond must be controlled at 5 to 15 centimeters for a long period of time, and cannot exceed 20 centimeters.

Fourth, the prevention and treatment of rickets

1. Plum spot disease: Caused by bacteria, plum-like lesions on the back of diseased fish can cause death. After the onset of illness, the pool water should be replaced immediately, or the skinned beak should be repeatedly dragged in the pool to kill the bacteria with their venom.

2. Fever: due to excessive stocking density, fish body mucus secretion is too much fermentation and decomposition, can be used 0.07ppm copper sulfate solution for treatment. You can also cast a small amount of loach, let it eat the residual bait and up and down turbulence, increase dissolved oxygen in water, for prevention.

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