In addition to raising aquatic products, people who often use ponds to raise aquaculture should also pay attention to the pond clearing pond problem. It is easy to know if your pond is unclear all the year round. Let's take a quick look at the next Qingtang. First, the pond is unclear for many years There are many wild fish in Tangkou, which are not clear in the pond all year round. Some enemy creatures breed in it, and compete with crayfish for food, resulting in too much feed waste. Ammonia nitrogen, nitrite, hydrogen sulfide and other toxic substances are excessive, which is easy to cause small Chronic poisoning of lobster, causing no food, death, etc.; excessive organic matter, serious oxygen consumption, the pond is very easy to lack oxygen in the middle and late stages, usually in the sub-anoxic state, lobster growth is slow; thick mud, harmful bacteria grow a lot, causing each A kind of bacterial disease, especially between 20-30 degrees of water temperature; the sediment of the sediment is loose, the water grass can not grow up, the temperature is high, and the submerged grass is completely bleached or rotted. Second, Qingtang drugs and precautions Lime Basically, most of the farmers in Qingtang use lime, and the effect of lime clearing pond is about 8-10 days, which is more suitable for Laotang. The purpose of this Qingtang medicine is to kill wild fish and auxiliary fertilizer. . 2. Bleaching powder The bleaching powder bleaching powder has a small amount of use, strong sterilization, easy operation, short potting effect and less residue. However, it is more irritating and susceptible to moisture and volatilization. 3. Tea seed cake Tea seed cake belongs to organic fertilizer and helps to cultivate zooplankton. Therefore, everyone may use more clear ponds. The disadvantage is that there is no killing effect on bacteria and viruses. Therefore, after use, it is best to dry the pond or Frozen pond. 4. Notes Aquaculture friends who are not eager to put seedlings can choose the drying pond to make the soil loose, and at the same time promote the oxidation of the sediment organic matter and improve the ventilation. The newly opened Tangkou has no bottom mud, no clear pond. After excavation, it is recommended to use lime or grass ash clear pond, mainly to replenish minerals. When using Qingtang medicine, calculate the measurement. Can not use metal equipment to hold Qingtang drugs, such as bleaching powder. In summary, I hope that friends of all farmers must choose Qingtang medicine according to the actual situation of their own ponds and use the correct method of clearing ponds. For the wonderful pictures and hot comments on the main points of Qingtang, you may be interested in the following recommended contents of Hui Nong. Welcome to read. Other Medical Consumables,Medical Equipment,Medical Equipment Consumables,Medical Consumable Products Shandong Zhushi Pharmaceutical Group Co.,LTD , https://www.sdzs-medical.com
