Qingtang Suntan After the last aquaculture, the plastic film is opened, the water is drained, the bottom of the pond is completely plowed using a tiller, and then the quick lime is used to clear the pond. Afterwards, it is thoroughly exposed to the sun to promote oxidation of the bottom black mud and toxic and hazardous substances. . Equipment overhaul Before laying the seedlings, such as repairing leakage, strengthening steel frames, dredging into the drainage pipelines, overhauling the hydropower lines, etc., to prevent accidents, affect the timing of seedlings laying. Covering the water Select the appropriate time to cover the shed in advance, the spring water should not be too deep (50 cm ~ 60 cm), the water is too slow to warm up; autumn because the temperature is higher, the sunshine is strong, it is recommended to put the water full of seedlings. It is recommended to put the seedlings in the canopies. Regardless of the spring and autumn, the spring canopies can easily warm up, and the fall canopies can reduce the adverse effects of bad weather, larvae, and waterfowl. Water disinfection According to the weather conditions, determine the specific time of seedlings. After determining the time for releasing the seedlings, disinfect the body of water five days in advance and use bleaching powder to kill harmful bacteria, predators, and algae in the water body. Detoxification Three days before planting, chlorine and heavy metals were removed. After the bleaching powder was disinfected for 24 hours to 48 hours, the oxygen aerator was turned on for aeration and aeration. The baking soda neutralized the residual chlorine in the morning and the EDTA complexed heavy metal in the afternoon. Two days before seedling, the pesticide residue and the algae toxin were removed by using organic acids or bio-organic acids. Double Head High Frequency Welding Machine Product categories of Double Head High Frequency Welding Machine, we are specialized manufacturers from China,PVC High Frequency Welding Machine, Plastic High Frequency Welder suppliers/factory, wholesale high-quality machine of high frequency welding R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation! Double Head High Frequency Welding Machine, PVC High Frequency Welding Machine, Plastic High Frequency Welder Wuxi DIZO Ultrasonic Technology Company , https://www.dizosonic.com
Preparation of shrimp larvae before hatchlings in small sheds
The preparatory work for the shrimp larvae before the larvae were released began. The seedling stage is a very important part of the cultivation of small sheds and is the basis for successful breeding. Do not arrange the preparations for the early stage of seedlings to be too compact, leave more time, prevent unexpected events, and delay the work of releasing seedlings. For example, the water intake is not timely, the materials are not in place, and the weather is abnormal.