In recent years, compound water-soluble fertilizers containing amino acids have been highly favored by farmers. In practical applications, products containing amino acids are also beneficial to the human body. In fact, just like plants, the lack of any necessary amino acid in the human body may lead to physiological abnormalities, affect the normal metabolism of antibodies, and ultimately lead to various diseases. Plants are also lacking essential amino acids, affecting their growth and development. What is amino acid? Amino acid is a general term for a class of organic compounds containing amino and carboxyl groups. The basic unit of biological functional macromolecular proteins is the fundamental substance that constitutes the proteins required for animal and plant nutrition. It is an organic compound containing alkaline amino groups and acidic carboxyl groups. The amino acid connected to the alpha carbon is the alpha amino acid. The amino acids that make up proteins are all alpha amino acids. One of its functions on plants is to directly participate in various physiological activities and the synthesis of endogenous hormones in plants. Amino acids also contain various nutrients that have long-lasting and quick acting fertilizing effects on crop growth. Therefore, amino acids can be used as foliar fertilizers for foliar spraying, which can combine the dual effects of supplementing nutrients and improving photosynthesis, laying a solid foundation for crop yield and harvest. Amino acid fertilizers contain a variety of nutrients, and it is well known that they have complete nutrients and the highest activity. Amino acid fertilizers have been developed and produced in large quantities in the United States, Australia, Canada, Japan, and Taiwan, and have already entered the international market. The development and application of amino acid fertilizers in China will also develop rapidly in recent years. The application of amino acid fertilizers in agriculture. Amino acid fertilizers are organic and inorganic complexes formed by the aggregation and complexation of plant amino acids as substrates, utilizing their enormous surface activity and adsorption retention capacity to add nutrients necessary for plant growth and development (nitrogen, phosphorus, potassium, iron, copper, manganese, zinc, aluminum, boron, etc.). This fertilizer can not only maintain the slow release and full utilization of large amounts of elements, but also ensure the stable and long-lasting effects of trace elements. It has a good effect on enhancing plant respiration, improving plant redox processes, and promoting plant metabolism. It can promote photosynthesis and the formation of chlorophyll, and has a significant promoting and activating effect on physiological and biochemical processes such as oxide activity, enzyme activity, seed germination, nutrient absorption, and root growth and development. Especially its affinity with plants is unparalleled by any other substance. The efficacy of amino acid fertilizers combines the long-term effects of organic fertilizers, the rapid effects of chemical fertilizers, the stable effects of biological fertilizers, and the increased efficiency of micro fertilizers. This mainly discusses the application of amino acids in this fertilizer in agriculture.

1. Amino acids provide the basic components for protein synthesis;

2. Amino acids provide nitrogen, carbon, and energy sources for plants, enhancing crop photosynthesis and chlorophyll synthesis;

3. Amino acids provide nutrients for rhizosphere microorganisms;

4. Amino acids can passivate various heavy metal elements and alleviate their toxic side effects;

5. Amino acids, when applied to crops, can enhance their stress resistance, such as resistance to low temperatures, and help restore growth after disasters;

6. Amino acids can integrate various trace elements, which are absorbed and utilized by plants, providing essential trace elements for them.