Adopting the most advanced plant growth theory, it has the characteristics of rapid calcium and nitrogen supplementation. Its unique combination of nitrate nitrogen and 100% water-soluble calcium provides many properties and advantages that other fertilizers do not have. It is one of the most valuable fertilizers on the market. Calcium nitrate contains 11.8% nitrogen (nitrate) and 23.7% water-soluble calcium (CaO) evenly in each grain, which is beneficial for crops to absorb nutrients, enhance the stress resistance of fruits and vegetables, promote early ripening, and improve the quality of fruits and vegetables. It is widely used in agriculture for basal application, topdressing, flushing application, and foliar spraying, and can also be used as a nutrient solution for soilless cultivation. It contains abundant calcium ions, and continuous application not only does not deteriorate the physical properties of the soil, but also improves the physical properties of the soil. It is most suitable for crops such as sugar beets, potatoes, barley, and hemp, and is widely used in various soils, especially in acidic soils with calcium deficiency. Its effect will be better.