Composite microorganism formulation for controlling excessive multiplication of blue-green algae and preparation method thereof
A technology of compound microorganisms and excessive reproduction is applied in the field of compound microorganism preparations. The preparation field of the biological preparations can solve the problems of low cost, blue-green algae-induced floating heads, various diseases, and excessive water quality. The effect of algal diversity and balancing algal phase
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[0042] A compound microbial preparation for controlling blue-green algae overgrowth, its proportioning ratio is as follows:
[0043] 12% microbial agent, 77% organic fermented material, 6% brown sugar, 5% trace elements;
[0044] According to the mass percent of described various raw materials, following concrete technical scheme is arranged:
[0045]
[0046]
[0047] A method for preparing a compound microbial preparation for controlling blue-green algae overgrowth, the steps are:
[0048] A. Cultivation of photosynthetic bacteria: inoculate the stock solution of photosynthetic bacteria into a liquid test tube with a cover, culture at 28-30°C for 3-5 days under light to obtain a suspension of photosynthetic bacteria; take 0.1-1% of the suspension of bacteria and put it into 500ml In the inactivated culture medium of the Erlenmeyer flask, use the improved Fan's medium (see Microbiology Experiment Textbook) to proliferate and cultivate in a constant temperature oscillat...
test example 1
[0063] The test site is Jiangxia, Wuhan, with a breeding water surface of 2 mu and a water depth of 1.5 meters. Before application, the algae phase of the water body is mainly blue-green algae, and the water body is aging, with a transparency of only 15 cm. On June 18, 2008, the microbial agent was used, 8KG was used per mu, diluted with 100 times of clear water, and evenly sprinkled in the pond. After 7 days, the transparency increased to 35cm; dissolved oxygen increased from 772mg / L to 1299mg / L; total N, The total P content and permanganate decreased by 30.2%, 28.1% and 17.2%, respectively, and the number of cyanobacteria increased from 53000×10 3 pcs / L down to 9900×10 3 / L, the water body has been significantly improved.
test example 2
[0065] The test site is Makou, Hunan, with a breeding water surface of 80 mu and a water depth of 1.5-2 meters. Before application, the algal phase of the water body is mainly cyanobacteria, and the number of cyanobacteria is 27700×10 3 unit / L, the water body is aging, and the transparency is 25cm; on July 4, 2008, microbial agent was used, 5KG was used per mu, diluted with 100 times of clean water, and evenly sprinkled in the pool. After 5 days, the transparency increased to 40cm; dissolved oxygen increased from 927mg / L increased to 1896mg / L; the number of cyanobacteria decreased to 5200×10 3 / L, the water body has been significantly improved.
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