As a new type of plant growth enhancer, alpha-ketoglutaric acid has shown broad application prospects in modern agriculture. It can not only promote the absorption of key nutrients by plants, but also improve the growth rate, yield and stress resistance of plants. The following is a specific introduction to the application of alpha-ketoglutaric acid in the agricultural field:

　　1. Promote element absorption

　　Alpha-ketoglutaric acid can effectively promote the absorption of key elements such as nitrogen, phosphorus and potassium in plants. These elements are essential for the growth and development of plants. By improving the growth and development of plant roots, α-ketoglutaric acid enhanced the absorption capacity of plants to nutrients in the soil, thereby improving the overall growth status and yield stability of plants.

　　2. Promote plant growth

　　As a biostimulant, alpha-ketoglutaric acid is involved in energy metabolism in plants. It plays an important role in the tricarboxylic acid cycle (TCA cycle) and is able to promote the production of ATP and provide the necessary energy for the plant, thus further enhancing the plant's ability to grow and develop. In addition, alpha-ketoglutaric acid is also involved in the metabolism and transport of amino acids, helping to accelerate plant growth and increase crop yield.

　　3. Build resilience

　　Alpha-ketoglutaric acid has the ability to scavenge reactive oxygen species and protect plant cells from oxidative damage. This oxidation resistance can enhance the biological activity and stress resistance of plants, so that plants can better adapt to various environmental conditions, such as drought, salinity, high temperature and other adverse conditions. By enhancing plant stress resistance, alpha-ketoglutaric acid helps plants maintain normal growth and development, improving plant survival and yield stability.

　　Application case

　　In actual agricultural production, alpha-ketoglutaric acid can be applied to crops by means of foliar spray or root irrigation. For example, in rice cultivation, moderate application of alpha-ketoglutaric acid can significantly improve drought resistance and disease resistance of plants, while promoting root growth, increasing tillering number and grain number per spike, and ultimately improving rice yield and quality.

　　As a multifunctional plant growth enhancer, alpha-ketoglutaric acid has shown great potential in promoting plant growth, increasing crop yield and enhancing plant stress resistance. With the further study of its mechanism, α-ketoglutaric acid will play an increasingly important role in the sustainable development of agriculture in the future.