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How to prevent the floating head and swimming edge of prawns in the early stage
Release time:
2023-05-31
First of all, we need to understand several reasons for the early floating head:
- The pond cannot be cleaned up with water all the year round, and the substrate is over-nutritious. In addition, the temperature is suitable for the reproduction of golden algae and dinoflagellate, which leads to the mass reproduction of algae.
- Most of the farmersExcessive pursuit of bait count or excessive use of chemical fertilizers, resulting in water"Hypertrophy", the performance of the water body is low, the water body red hairyellow and even black, water quality sticky, algae species single.
The above twoThe direct harm it brings is that the water body is stuffy, the dissolved oxygen at the bottom is low, and it is easy to lack oxygen at night. And a single algae is more likely to age and cause algae to pour.
- Pesticide residues in extreme weather can cause pesticide residues locked in the sediment to volatilize outward, causing shrimp seedlings to float and even die from hypoxia.
- There are more protozoa and shrimp shreds in the water body, and ponds with thicker water bodies are prone to cause hypoxia on the floating head of shrimp shreds, which in turn leads to stress on the floating head of Penaeus vannamei.
Therefore, when the water temperature is suitable, it is not possible to blindly apply fertilizer or use a large amount of inorganic fertilizer. Once the water is too fertilizer, the water should be changed first,First of allSplash clear water to detoxify the permeable body, then useEMdecomposition of organic matterAfter three days of continuous use, the water color can return to normal.
clear water detoxification safety:1 jin 3 mu of landZhongren Bishui Jiedu An is a polybasic organic acid with high content and good fruit. It is rich in surfactant. While rapidly degrading harmful substances in water, it can also quickly and effectively remove the oil film on the surface of water body, reduce the water surface tension and increase the permeability of water body. In addition, in the use of live bacteria or fertilizer water before use, can improve the effect of live bacteria preparation, and promote the reproduction of algae.
Bacteria Cube: Will1kg of this product plus 2~4kg of brown sugar can ferment 200kg of fermentation liquid can use 50 mu of land.
Bacteria cube contains more than a dozen kinds of high-quality bacteria, rapid expansion of culture, can quickly and effectively decompose excessive organic matter in the water body, adjust the transparency of the water body, stablePH, promote beneficial algae reproduction, inhibit harmful algae, harmful bacteria reproduction, significantly improve the scallop seedling feeding situation, enhance the immunity of the seedling body, improve the survival rate.
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