First of all, talk about the concept of microecological agents. Microecological preparation refers to a biological preparation containing live probiotics or substances that can promote the growth of probiotics, which is produced by using bioengineering technology and special technology. Water-regulating microecological agents generally refer to biological agents made of probiotics with decomposition function such as Bacillus, lactic acid bacteria and photosynthetic bacteria, including powder, liquid, paste and granules. Bian Xiao saw farmers say that they are using biological agents to adjust water quantity regularly. The products they take out are all products of fat and water, which is also a big misunderstanding.
Discussion on formulation of microecological preparation for water transfer. At present, biological agents for water diversion can be divided into four categories: powder, liquid, paste and granule. Among them, the liquid type is the most primitive and has the biggest disadvantages. It is difficult to ensure the effective viable count of liquid microecological preparations and the effective storage time is short, so we must pay attention to the expiration date when choosing liquid dosage forms, such as liquid lactic acid bacteria, which is half a year. Bacillus is the main powder, and it is also the most widely used powder in aquaculture at present, but the powder only contains bacteria, and its effect is limited. The paste microecological preparation can ensure the activity of adding probiotics, and can also add beneficial bacteria factors and algae factors. It is a new biological agent for water regulation. The granular type has strong pertinence, and bacteria can directly reach deep water and bottom layer, which overcomes the defect that probiotics only suspend the upper water after using liquid type and powder type. Bian Xiao once met farmers who insisted on changing the bottom with powdered biological agents, because the name of this product was called "bottom net". Therefore, when farmers use biological agents, they should make targeted choices, such as granule for bottom modification and powder or paste for water transfer.
Discussion on the correct use of microecological preparation for water diversion. (1) When using microecological preparation, the water temperature should be above 15℃, and when using Bacillus, it should be used in sunny morning. (2) According to different water quality, such as thick green water, muddy water and other water quality, adjust the dosage appropriately. (3) Biological agents should be used consistently, 10- 15 once a day, which is beneficial for probiotics to maintain the dominant flora in aquaculture water. (4) It should be used at intervals with disinfection and sterilization drugs, and microecological agents should not be used within the validity period of disinfection and sterilization drugs, with an interval of at least 24 hours. (5) A large number of probiotics are killed after each disinfection and disinfestation, so biological agents should be used to adjust the flora of water body in time. (6) Normal water can be fertilized before using biological agents, which can improve the utilization rate of water and fertilizer and accelerate the growth of beneficial algae. For the water quality problems such as cyanobacteria bloom and thick green water, it is best to adjust the water quality with biological agents before fertilizing and cultivating algae.
A new generation of paste microecological preparation "Yishui Algae" is produced by compound probiotic fermentation and the latest preparation technology. The flocculating and adsorbing particle carrier contained in it forms a biological flora through microbial fermentation, and absorbs a large amount of organic matter and impurities to cover the bacterial membrane in the process of sinking into water, so that the bacterial content is high, the activity is strong, and the decomposition is faster and more thorough. Effectively adjust the water quality problems such as oil slick and bubbling caused by excessive accumulation of organic matter. The application of "beneficial algal element" is only on the water surface, with high cost performance and quick effect. Each barrel 1kg is suitable for 8- 10 mu of water surface.