Ecological prevention and control method for inhibiting moss growth by applying immobilized phycomycetes

A technology of algae and moss, applied in the field of aquaculture, can solve the problems of high cost and poor effect of moss prevention and control, and achieve the effect of promoting fertilizer and water and improving the breeding environment

Inactive Publication Date: 2021-05-07
HUBEI BIOPESTICIDE ENG RES CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of high cost and poor effect of moss prevention and control in the prior art, the present invention provides an ecological prevention and control method using immobilized algae to prevent and control moss growth, through the absorption and decomposition of sediment nutrients by immobilized algae , reduce the nutrient source of moss, thereby inhibiting the explosive growth of moss, immobilized algae can also provide beneficial algae and beneficial bacteria to the water body, thereby promoting the growth of planktonic algae, accelerating the fertilizer and water of aquaculture water, and the immobilized algae will also absorb and transform nutrients such as ammonia nitrogen and nitrate nitrogen in the water body to improve the breeding environment

Method used

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  • Ecological prevention and control method for inhibiting moss growth by applying immobilized phycomycetes
  • Ecological prevention and control method for inhibiting moss growth by applying immobilized phycomycetes
  • Ecological prevention and control method for inhibiting moss growth by applying immobilized phycomycetes

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Embodiment 1

[0020] Embodiment 1: Chlorella and EM bacterium immobilized algae ball to the inhibition situation of moss growth

[0021] (1) Preparation of beneficial algae: Chlorella algae species (No.: FACHB481) were purchased from the Institute of Hydrobiology, Chinese Academy of Sciences. BG11 liquid medium was used to aerate and culture in a 25L multiplication system to logarithmic growth phase, and the culture conditions were temperature (25±1)℃, light intensity 2000~4000Lx, light-to-dark ratio 12h:12h;

[0022] (2) Preparation of EM: add EM bacteria for fishing (EM is the stock solution of Kangyuan Oasis EM bacteria purchased in the market, the main strains are photosynthetic bacteria, lactic acid bacteria, yeast, etc.) and add brown sugar water to seal and ferment for 3 days;

[0023] (3) Immobilization method: After mixing the chlorella liquid cultured to the logarithmic phase and the fishery EM bacteria fermented with brown sugar for 3 days, centrifuge at 4000r / min for 5 minutes, ...

Embodiment 2

[0028] Embodiment 2: Chlorella and compound bacillus immobilized algae balls to the inhibition of moss growth Cultivate chlorella, the cultivation method is the same as embodiment 1; Fishing compound bacillus is purchased from the market, it is milky white or brown yellow In powder form, take an appropriate amount of compound bacillus to activate, mix with chlorella, prepare immobilized pellets according to the method of Example 1, and add 200 / L to the growth environment with floating moss, and add 10 Days later, the growth of moss was inhibited. Compared with the control, the color of moss turned yellow, the coverage of moss decreased by about 50%, and the weight decreased by about 40%. The color of the water body turned green, and the phytoplankton increased significantly, and the NH 4 + -N, NO 3 - -N contents were reduced by 90% and 98%, respectively.

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Abstract

The invention belongs to the technical field of aquaculture, and discloses a method for inhibiting moss outbreak by using immobilized phycomycetes, and the immobilized phycomycetes are gel beads formed by embedding green algae and EM bacteria or / and composite bacillus with calcium alginate. The nutrient release of bottom mud of an aquaculture pond is reduced by utilizing the absorption and utilization effects of a symbiotic system of beneficial algae and probiotics on nutrients and the immobilization and sedimentation effects of sodium alginate, so that the nutrient source of moss is cut off, and the explosive growth of moss is inhibited. The method has the advantages that the immobilized phycomycetes settling at the water bottom absorb nutrition of the bottom mud, explosive growth of moss is inhibited by reducing nutrition supply of moss, and meanwhile, the immobilized phycomycetes can absorb and convert nutrient substances such as ammonia nitrogen and nitrate nitrogen in the water body and provide beneficial algae and beneficial bacteria for the water body, so that the culture environment is improved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and more specifically relates to a method for inhibiting the explosive growth of moss in a culture pond by using immobilized algal bacteria. Background technique [0002] Moss is a general term for several kinds of filamentous green algae such as Spirogyra, Double Star Algae, and Transplate Algae. In the field of aquaculture, moss grows in abundance in ponds such as river crabs and crayfish. Especially in the process of crayfish breeding in paddy fields, the moss began to grow in an attached state from December. As the temperature rose in spring, the moss gradually changed from an attached state to a floating state, and the cover gradually increased. By early and mid-April, the moss covered The speed can increase to 60-70%. The massive growth of moss consumes inorganic nutrients in the water body, making it difficult for phytoplankton to grow, and the water quality of the pond is thin. Afte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/32A01G33/00C02F101/16
CPCC02F3/34C02F3/322A01G33/00C02F2101/16C02F2101/163C02F2209/14C02F2209/15C02F2305/06Y02A40/80
Inventor 郑娇莉曹春霞黄大野杨丹姚经武杨靖钟
Owner HUBEI BIOPESTICIDE ENG RES CENT
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