The purpose of fish pond fertilization is to cultivate plankton. With plankton, there is a “tool” for oxygen production in the water. There is no oxygen in the water, it will be a pool of stagnant water. Among the plankton population, there are zooplankton that control the growth of phytoplankton, which use phytoplankton as bait. How to balance nutrition in water and promote balanced production of adequate and timely plankton, fertilization is a key technology.

Sediment is a pool of fertilizer in fish ponds. There is no sediment, and water and fertilizer do not rise. The sediment exceeds 15 centimeters, indicating that the fertilizer is too much and it is easy to make water. Therefore, the key technology for fertilization is to look at the depth of sediment in the pond. If the sediment is not enough, farm organic fertilizer should be used as base fertilizer (basal fertilizer) before the fish enter the pond. This base fertilizer releases fertilizers and increases fertilizer quality in the event of fish activity. Topdressing is only a supplement to base fertilizer deficiency or broken chains.

Therefore, the key technology for fish pond fertilization is to apply the base fertilizer first. When the base fertilizer is insufficient in the aquaculture process, top dressing is applied. How to identify basal deficiency? - Look at the color is a very important method. When the transparency of the water color is more than 27 centimeters or so, when the water color begins to fade, it is necessary to adopt a method with less quantity and more times. After every half month or 10 days, apply one time to stabilize the color.

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