Abstract:

The compound microbial agent can effectively improve the quality of aquaculture water and reduce the harmful factors in the pond water, which is suitable for the ecological regulation of large-scale green aquaculture. At present, the beneficial microorganisms commonly used in aquaculture mainly include Bacillus, photosynthetic bacteria, nitrifying bacteria, denitrobacteria, Lactobacillus, Saccharomyces, Pseudomonas, Bifidobacterium and so on. In order to explore the application status and research progress of compound microbial agents in pond water quality regulation, this paper summarized the factors affecting the water quality, the composition of microbial agents, the function of microbial agents and the application of microbial agents in pond culture. In view of the lack of scientific management, ecological imbalance caused by excessive dependence, the lack of scientific basis, water quality deterioration caused by miscellaneous bacteria pollution, solutions were proposed as follows. (1) Supporting the scientific management technology, to avoid over-dependence; (2) Optimizing the compatibility of bacteria, playing the synergistic effect of multiple bacteria to degrade organic pollutants, and optimizing the microbial community structure of water; (3) Developing highly stable microbial agents and constructing a control scheme to provide technical support for the construction of a healthy and stable water micro-ecosystem.

Key words: compound microbial agents, pond culture, water quality control, water quality improver, research progress