There are many kinds of chemical fertilizers, and there are more than 10 commonly used ones. Some fertilizers can improve quality and yield after they are applied to vegetables, but some fertilizers can cause toxin contamination when they are applied to vegetables to increase production. For example, ammonium nitrate and other nitrate nitrogen fertilizers are generally not suitable for application to vegetables, especially leafy vegetables such as cabbage, vegetables, spinach, etc., because the application of nitrate nitrogen fertilizers in vegetable fields will double the nitrate content of vegetables. Nitrate is easily reduced to nitrite in the human body, which is extremely harmful to the human body. Ammonium chloride, potassium chloride and other chemical fertilizers containing chlorine components should not be applied to tomatoes, potatoes, etc. Since chlorinated fertilizers are decomposed in the soil, potassium chloride ions will be absorbed by the soil and absorbed by crops when their concentrations reach a certain level. When it is in the degree, it can cause poisoning to the plant roots. It can reduce the content of starch and sugar in the product, affect the yield and quality, and in severe cases it can cause the vegetables to die. Tangshan Finely Animal Care Co.,Ltd , https://www.faczyme.com