Lysine and methionine are the monomeric amino acids often added in aquatic feed, because energy feed and plant protein feed are two bulk raw materials in aquatic feed, lysine is the most deficient in energy feed, and methionine is the most deficient in plant protein feed. 1. Nutritional effect of lysine: Lysine plays a very important role in maintaining the normal growth and development of aquatic animals and the normal function of nervous system. Lack of lysine in the feed will cause negative nitrogen effect (protein decomposition and excretion), so that the protein in the feed can not be fully utilized, aquatic animals grow slowly, and there will be fatty liver, bone calcification rate reduction and other symptoms. 2. Nutritional effect of methionine: Methionine is an amino acid containing * * * sulfur in essential amino acids, which is involved in the transfer of methyl in aquatic animals, the synthesis of adrenaline, choline and inositol, and the metabolism of phospholipids in the liver. Methionine can synthesize lysine, which has the function of liver protection and detoxification. Therefore, methionine can promote the growth of aquatic animals and prevent fatty liver, flower liver and other diseases.

Amino acid fertilizers produced by hydrolysis or fermentation contain a large number of small molecular organic compounds, so as a chelating agent, the development of new multifunctional fertilizers has developed rapidly. Amino acid microelements chelate Hefei. The absorption biochemical function of inorganic micro fertilizer is poor, it is easy to be fixed by soil, and there is obvious antagonism between trace elements, and the utilization rate is low, which is difficult to meet the needs of plant growth; Using EDTA, citric acid, tartaric acid, etc. as chelating agents to produce chelating micro fertilizers is very expensive. The multi-element micro fertilizer containing Mo, Zn, Cu, Fe, Mn, etc. has been prepared, which has the characteristics of resisting interference, alleviating the antagonism between metal ions, good chemical stability, easy to be absorbed and utilized by plants, and the amino acid after losing the reduction of metal ions also has nutritional effect, which is also a high-quality nitrogen fertilizer to promote plant growth. Amino acid chelated micro fertilizer is the most ideal micro fertilizer for crop growth at present, and has been used in agricultural production as a new fertilizer. At present, there are also products that combine amino acid pesticides and fertilizers, which can not only fertilize, but also kill insects and sterilize. Therefore, it is the requirement of ecological agriculture and the inevitable trend of agricultural sustainable development to systematically carry out the function research of amino acid fertilizer, give full play to the potential of amino acid, and improve its utilization rate and biological potency. Amino acid fertilizer produced by hydrolysis or fermentation is a fertilizer with compound amino acids as the main body, and contains sugar, protein or bacteria and other metal ions at the same time. Studies have shown that the fertilizer effect of mixed amino acids is greater than that of single amino acids. The fertilizer effect of some single amino acid groups with good fertilizer effect is still high, while the fertilizer effect of some amino acid groups with poor fertilizer effect is still low. It is considered that there is still a problem of optimization of amino acid composition. When protein hydrolysis or fermentation products are actually used as amino acid fertilizer, they are generally mixed amino acids, but the types and concentrations of amino acids in the waste liquid of different processes and amino acids are different. Therefore, the fertilizer efficiency of the same crop is also different, so there is also the problem of optimization. How to further optimize the composition and structure of fertilizer according to the needs of crops, adjust the proportion of each component to balance each other, and make the varieties produced diversified and specialized should be explored and tested in practice. In short, the continuous research on the hydrolysis or fermentation of agricultural waste to produce amino acid fertilizer and its application has opened up more and more new sources of raw materials, providing a new scientific basis for the scientific development and application of amino acid fertilizer. Because the raw materials and processes of amino acid fertilizer production are very different, and the components are comprehensive and complex, the production and Application Research of amino acid fertilizer is a complex system engineering, involving chemistry, chemical engineering, biochemistry, soil nutrition, plant physiology and other disciplines, which has a very broad development space.

Agriculture is the foundation of the national economy, and soil and fertilizer are the foundation of agriculture. The leading agriculture in the 21st century is ecological agriculture, and the leading food in the 21st century is green food. Green food is a pollution-free, safe, high-quality and nutritious food. Therefore, green food has strict restrictions on the growing soil, chemical fertilizers and pesticides. This requires the development of efficient and pollution-free high-quality green fertilizers to meet the growing demand for efficient agriculture. Amino acid multi-element fertilizer is a high-quality green fertilizer that meets this requirement and has high-quality plant physiological effects. Let's talk about the production of amino acid fertilizer and its effect on soil:

Amino acid raw powder is made from natural keratin hair or soybean cake by hydrolysis, deacidification, desalination and spray drying. It mainly contains 18 kinds of free amino acids, which are suitable for feed and agricultural applications. The appearance of this product is yellow powder, which is easily soluble in water and moisture absorption. The role and main functions of feed amino acid powder in feed use are: 1. Enhance flavor and freshness, and promote animal appetite. 2. Quickly supplement animal nutrition. 3. Promote the growth of animal fur. 4. It has a certain bonding ability, and when mixed with other powders, it can enhance particles and reduce the waste of feed. The main functions of fertilizer amino acids in agriculture are: 1. The total nitrogen content of this product is about 2%, and it contains inorganic nitrogen and organic nitrogen, which has a long-term and quick-acting nitrogen supplement effect on plant growth. 2. Amino acid itself is rich in protein, which is certainly a plant nutrient. 3. Glycine can increase the content of chlorophyll in plants, increase the activity of enzymes, and promote the light cooperation of plants. 4. This product regulates and supplements plants through its own multifunctional nutrients. It is a plant growth regulator. 5. Amino acid is also a practical complexing agent, which can complex a large number of elements such as N, P, K, and trace elements such as Zn, Fe, Cu, Mn, B, and mo.