The season of the year lies in the spring. Grasping the management of fish ponds in the spring is an important measure to seize high productivity and efficiency throughout the year. As the saying goes, "four, five, six fish long bones, seven, eight, nine fish long meat" (refers to the lunar calendar). Therefore, the following four “early mornings†are required for the management of high-yield and high-efficiency ponds in the spring: I. Pond early preparation 1, early dredging. That is, after the fish harvested in dry ponds before the Spring Festival, the pond was dredged. Clear the black silt and weeds in the pond, wild fish, and flatten the bottom of the pond. 2, early disinfection. That is, use lime or bleach for drug disinfection. 3, early basal fertilizer. Shiji Fei can improve the nutritional status of the sediment and increase the nutrients in the pond to facilitate the proliferation of natural food. Especially for ponds with thinner, newly reconstructed or newly-excavated ponds, the decomposed pig manure or cow manure 300-500 kg/mu should be used as the base fertilizer 5 to 6 days after the disinfection of clear ponds. Excavated ponds must be applied more. Second, early release of fish species After the Spring Festival is generally the best season for stocking fish, because in this period of time the temperature and water temperature are relatively low, the fish scales close, activity is small, fishing, handling and stocking operations is not easy to damage the fish, can reduce the fish Species morbidity and mortality. The fish species should be selected to be carried out on a sunny day where the temperature is not too low. When the temperature is too low, the weather is too cold or snow, and the windy weather easily freezes the fish. It is not suitable for stocking. The fish should be disinfected when stocking. Third, feed early feeding 1, early feeding bait. After the spring begins, when the water temperature rises to 8-10°C, the fish begin to ingest food, and the food intake gradually increases as the water temperature rises, and it should be fed early. The amount of feed in the high-yield fish ponds in the spring should be dominated by wheat bran, corn, and pellets, and they should be fed once a day or every other day. They should be fed on sunny days at noon. As the water temperature rises, the number of feedings can be increased to two. This time, they were fed once in the afternoon and once in the afternoon, and some easily digestible green fodder such as ryegrass and tender grass were added. Feeding should adhere to the principles of “four settings†(timing, qualitative, positioning, and quantitative). The specific amount of daily feeding should be flexibly controlled according to the weather, water temperature, and the fish’s feeding conditions. It generally accounts for the weight of the stocks eaten by ponds. %-4%, the feed amount of green feed is generally 5-6 hours after feeding is appropriate. 2, early fertilizer. As the saying goes, "Fish raising water first," so it is particularly important to fertilize pool water early. It is better to apply organic fertilizer in the spring, and the specific amount and frequency of fertilizer application should be based on the pond water quality and fertilizer quality. The general principle is: In the early spring, the quantity is less, and the late spring is less. Make the pond water green (including blue green, yellow green and bean green) or brown (including yellow brown, red brown and dark brown), the water body is moderately transparent, and it is maintained at about 30 cm. The water temperature in early spring is low and should be controlled at 20-30 cm. The high temperature in late spring should be controlled at 25-35 cm. The water quality should be “fat, live, tender and coolâ€. IV. Early prevention of fish diseases 1, food disinfection. Animal diets such as snails require fresh water and are cleaned with fresh water and then fed; plant meals such as duckweed and other plants are soaked in 20 mg/L bleach solution for 20 minutes; organic manure is fermented. It can be used only after mixing with 50 kg plus 120 g bleaching powder. 2, food disinfection. One is to sprinkle 250 g of bleach with water on a regular basis. The second is to sterilize bamboo vines (bags) with 150 grams of bleaching powder in each bamboo basket around the food field. Each time, 3 to 5 food stalls are placed at each food field, and the dressing is changed once a day for 3 days. The above two methods are repeated once a month. In addition, we must also pay attention to the cleanliness of the food market, and timely remove the residual bait. 3, tool disinfection. All tools used in diseased fish ponds must be sterilized before they can be used. 4, water disinfection. Regular use of drugs spread across the pool to prevent bacterial diseases and parasitic fish diseases. If a fish disease occurs, the cause of the disease should be identified in a timely manner, and measures should be taken to treat the disease. dry flowers Guangzhou Zhongzhinan Supply Chain Co.,Ltd. , https://www.gzzhongzhinan.com