The pond is a complex small ecosystem, the fish and shrimp, algae, and microorganisms in the pond interact and influence each other in the pond, and the interaction between organisms must also depend on the two mediums of water and sediment for material and energy transformation, so the water quality and sediment in the pond affect the material and energy cycle of the whole system, so scientific water quality regulation is a key factor to improve the efficient operation of the pond and achieve high yield and efficiency, and the substrate is used as the "energy bank" in the pond. It has undoubtedly become an important factor affecting water quality control.
Basic strategies and methods for improving substrates.
From the perspective of the causes of sediment deterioration, the basic strategies for improving sediment are to control the thickness of sediment, control the pH of sediment, supplement the organic matter content of pond sediment decomposed by beneficial bacteria, and give full play to the potential advantages of pond sediment "energy pool".
1. Physical methods.
Common physical methods include dredging, opening an aerator to stir the bottom of the pond, etc.
2. Chemical methods.
Common bottom modification products with potassium persulfate or ozone as the main component.
3. Biological methods.
This method is mainly to apply the corresponding bacteria to the bottom of the pond, decompose or absorb the accumulated organic matter and some toxic and harmful substances, and this method can fundamentally solve the problem of the bottom of the pond to a certain extent.
In today's high-speed development of aquaculture industry, the input of a large number of exogenous substances has become an unchangeable way, so it is more necessary to pay attention to the improvement of the bottom environment, through artificial regulation (physical, chemical, biological methods) to effectively improve the bottom of the pond, the pond water quality, the bottom of the pond and the pond organisms are closely connected, open up the material and energy cycle between the three, and truly achieve the purpose of high-yield and efficient aquaculture.