Fish fertilizer should pay attention to the problem

First, the application of nitrogen fertilizers (1) nitrogen fertilizer, although high nitrogen content, but a single component, is incomplete fertilizer, should be mixed with phosphorus and potassium fertilizers, the ratio of 2:2:1. Ponds with more silt may not use potassium fertilizer. (2) Before applying nitrogen fertilizer, it is best to apply organic fertilizer as base fertilizer. Nitrogen fertilizers are suitable for top dressing. (3) The application of chemical fertilizers other than ammonia water should be dissolved in water first, then Quanchiposa. Fertilize once a week in general. Every 100m2 of water depth per meter is 0.75kg per application. Large and medium-sized reservoirs should be fertilized in shallow waters in the upstream reservoirs and lakes. The fertilization site should be as far away as possible from spillways or sluice gates to avoid loss of fertilizer and water. (4) The target of application was mainly filter-feeding fish such as carp and squid, followed by omnivorous fish such as carp and squid, and the effect was poor when applied to herbivorous fish. (5) The use of nitrogen fertilizer should not be mixed with quicklime, plant ash and other alkaline fertilizers. The application of nitrogen fertilizer should also be stopped when the pH of the pool water is above 8.3. Second, the application of phosphate fertilizer (1) depending on the status of the water to determine the amount of application. The amount of fish ponds was increased by 15%, and the amount of furrows, canals, and lakes was increased by 20%. After the application, the water became lighter (transparency 25 to 30 cm) and yellowish green or brownish green was preferred. (2) Choose the appropriate varieties of phosphate fertilizer. The application of superphosphate is wider and the effect is better; followed by calcium magnesium phosphate fertilizer; the effect of phosphate rock powder is poor. (3) The ratio must be reasonable. The ratio of superphosphate to urea is 1:1, and some old fish ponds with more organic matter and yellow ponds with sandy ponds can be increased to 2:1. Other nitrogen fertilizers are converted into urea according to the nitrogen content, and then calculated. (4) The casting time should be appropriate. From June to September, it is the best season to choose about 150 grams per 100 square meters of water per day from 8 to 9 am. 10 days is 1 cycle, and the interval is 2 weeks and 1 cycle is repeated. (5) Pay attention to fertilization methods. In general, it should be mixed with organic fertilizer or other nitrogen fertilizers. Phosphate fertilizer should be applied first when mixing with nitrogenous fertilizer, then nitrogen fertilizer should be applied. When applying alone, it is best to dissolve the phosphate fertilizer first and spray it on the surface of the water with a sprayer or spray it evenly. It is also possible to use a bag of phosphate fertilizer and hang it on a fixed stake in the water. (6) No matter which kind of phosphate fertilizer, it can't be mixed with quicklime and plant-wood ash;

Amino Acid

Protein is one of the two most important basic components of life. It is a covalent polypeptide chain connected by more than 20 different forms of amino acids. Amino acids are the basic units of proteins. Both humans and animals must use amino acids or proteins as nitrogen sources, but proteins in food must first be broken down into amino acids and then synthesized their own proteins. Therefore, amino acids are the basic unit of proteins and the raw materials for synthesizing human hormones and enzymes, participating in human metabolism and various physiological functions.

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