The efficient management of river crab ponds is a necessary guarantee for the success of crab breeding. The farmers have a clear understanding of the efficient management techniques of river crab ponds to promote not only the healthy development of river crabs, but also reduce the incidence of river crab diseases. The efficient management of river crab ponds is the key knowledge of river crab breeding techniques. It is an inevitable measure for farmers to realize the benefits of crab breeding. Then how can the farmers manage crab ponds efficiently? The following Xiao Bian will introduce to you the "four tips" of efficient management techniques for crab ponds.
First, to strengthen the management of aquatic plants: water grass management to plant aquatic acreage accounted for 60-70% of the total pond area. Too many aquatic plants in Tangkou, to carry out manual removal of the main measures to remove the excess water plants, and strive to ensure that the distribution of aquatic plants as "#" font to ensure ventilation, ventilation. Aquatic plants with mainly aquatic plants such as Elodea supplemented with waterweeds may be supplemented with some water peanuts and duckweed.
Second, to strengthen the disinfection of ponds: regular (10-15 days) chlorine dioxide, bleaching powder or quicklime disinfection of the crab food market to control the growth of harmful bacteria.
Third, the application of EM bacteria, nitrifying bacteria and other microbial agents: the use of EM bacteria, nitrifying bacteria and other microbial preparations Quanchiposa, EM bacteria is generally 15 days / time, the amount of 1 kg / mu.
4. Strengthen water body oxygenation: Normally, the water body is oxygenated from 10:00 in the evening to 6:00 in the next day. When the weather suddenly changes, the aerator can be started in time, which will effectively relieve the oxygen deficiency in the water and ensure the water body. Dissolved oxygen is sufficient.
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Shandong Shengli Bioengineering Co., Ltd , https://www.shenglipharm.com