1. Organic compound fertilizer.
Organic fertilizer refers to a fertilizer containing a large amount of organic matter, rich in nitrogen, phosphorus, potassium and other macroelements and a variety of trace elements, is a kind of full nutrient fertilizer. In aquaculture, organic fertilizers can be applied as basal fertilizers to provide a comprehensive range of nutrients for aquatic organisms. At the same time, the microorganisms and beneficial bacteria in organic fertilizer can improve water quality, improve the self-purification ability of water bodies, and reduce the occurrence of diseases. We use: multi-effect fertilizer and water pioneer, rich in a variety of amino acids and trace elements and other nutrients, small molecules of fertilizer and water fast, low temperature can also quickly fertilizer water.
2. Biological fertilizer.
Biological fertilizer refers to the fertilizer composed of microorganisms, which can promote the reproduction of various microorganisms and plankton in the water body after use, and provide abundant natural bait for aquatic animals. At the same time, it can also improve water quality, improve the self-purification ability of water bodies, and prevent the occurrence of diseases. When using bio-fertilizer, care needs to be taken to avoid mixing with chemicals such as fungicides, so as not to affect the fertilizer efficiency. It can be used: EM bacteria pioneer, ultra-high concentration EM bacteria, promote fertilizer hydroponic algae, degrade ammonia nitrogen, and use it with fertilizer to improve fertilizer utilization rate and fertilizer and water efficiency.
3. Inorganic fertilizer.
Inorganic fertilizer refers to fertilizer that does not contain organic matter, and common inorganic fertilizer is mainly chemical fertilizer, including nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, etc. In aquaculture, inorganic fertilizers can be applied as top dressing to provide fast-acting nutrients to aquatic organisms. However, inorganic fertilizers cannot provide comprehensive nutrients, and excessive use will lead to eutrophication of water bodies and damage the water environment.
4. Precautions.
Before fertilizing the water, it is necessary to test the water quality and deal with any abnormalities in time. According to the growth and development stage and nutritional requirements of the farmed species, the content of nutrients is adjusted. When applying fertilized water, it is necessary to ensure that the nutrients are evenly distributed in the water. If the application rate is too large or uneven, it can lead to poisoning of aquatic organisms and stunted growth.