How to make the pond raise high yield and high yield of Astragalus, feeding and management in late autumn is the key. Because the temperature in late autumn is appropriate and it is the peak season for the growth of the yellow peony, it is necessary to:
Improve water quality: The water depth in Dianchi Lake is controlled at about 30 centimeters to keep the water quality “fat, live, tender, and coolâ€, so that the pool is not old. Change the water once every 1 day to 2 days. Regularly apply quicklime to adjust the pH, and control the pH of the pool water to be between 7 and 7.8. Control water temperature: The optimal temperature is 24°C～28°C. In early autumn, the temperature is high, and the water temperature in the direct sunlight will rise rapidly, affecting the appetite of the jaundice and inhibiting its growth rate and even causing death. Water temperature should be controlled below 28°C during this period.
Strengthen Feeding: In the late autumn, Astragalus membranaceus has a strong food intake, and it is necessary to ensure the quality and quantity of sufficient feed to promote the rapid growth of Astragalus membranaceus. The bait is mainly based on fresh bait such as cockroaches, fly maggots, snail meat, and viscera of livestock and poultry, and is supplemented with appropriate amounts of plant foods such as wheat bran, pancake, and fruits. After the animal foods are washed, they are soaked for 3 minutes with 200 mg of potassium permanganate solution per kilogram of water, then rinsed with clean water and put on a bait stage about 3 cm below the surface of the water. In general, the amount of fresh bait is about 8% of the body weight of baicalin and the amount of dry bait is half of the bait. It is forbidden to feed the contaminated or spoiled bait. Feeding should adhere to the principles of timing, positioning, quality, and quantity, and special attention should be paid to the amount of feeding. If the amount of food consumed by the carp is reduced in bad weather, it should be appropriately reduced.
Anti-escape treatment: In case of abrupt changes in the weather, the carp feels uncomfortable and restless and waits for opportunities to flee, especially in thunderstorms or nighttime rainstorms. Therefore, you should always check whether there is any crack in the wall or the bottom of the tank, whether the drainage network is in good condition and whether the water depth is close to the overflow level.
In addition, late autumn is also a high incidence of rickets, the common diseases and prevention methods are as follows:
1 cold disease. The main reason is that the temperature changes greatly, causing a drastic change in the water temperature and leading to a yellow fever. Strictly control the temperature, master the amount of water change, and prevent the temperature difference between the front and rear of the Dianchi Lake to be too large.
2 fever. Because the pool water is too shallow and the water temperature is too high, the sickness is restless and often falls out of the water or lays on the grass and frequently swings its head, hunger without food, and finally dies. The preventive measures are to cool the shade and add new water. For every cubic meter of water body
5 ml of 0.07% copper sulfate solution is sprayed evenly in the whole pool. Can also use 100 grams of green onions per cubic meter of water, salt, 50 grams, 15 grams of mulberry leaves mash into juice Quanchiposa, 2 times a day, once every 2 days to 3 days.
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