In recent years, APP has gradually entered the field of liquid fertilizer production, especially in developed countries such as the United States and Europe, and has been widely used.

There are currently 130 factories in the United States producing agricultural APP with an annual output of 2 million tons. Other countries include Belgium, France, and Russia. These basic liquid fertilizers can be mixed with nitrogen solutions and potassium fertilizers to produce liquid compound fertilizers.

Agricultural ammonium polyphosphate is an important phosphorus raw material for the development of water-soluble fertilizers. It has the following advantages:

(1) The phosphorus content is high, the pH value is nearly neutral, the pH value is 6.5-7.5, the safety factor of crops is high, and the activity of mineral elements is good.

(2) High solubility, solubility ≥150g/100g water, liquid fertilizer with high phosphorus content can be configured; low crystallization temperature, convenient production and use.

(3) It has a chelating effect on metal ions, which can prevent metal impurities from forming precipitation in the solution. Adding trace elements to liquid fertilizers is conducive to making high-concentration and high-quality liquid fertilizers. Phosphorus is not easily fixed by metal ions such as iron and calcium in soil, but can form soluble complexes with ineffective trace elements in soil and be absorbed and utilized by plants.

(4) Although it is not directly absorbed by plants in the soil, it can be slowly hydrolyzed into orthophosphate in the soil and then used by plants. It is a slow-dissolving long-acting fertilizer.

(5) It can be made into foliar fertilizer for foliar spraying of crops. Agricultural ammonium polyphosphate is used as a fertilizer, and the application rate can be 3 times higher than that of orthophosphate, but it will not burn the leaves. Its neutral solution can remain on the leaves for several days without being evaporated or salted out.

If you are looking for soluble APP for fertilizer, please check our products Hopeflam APP101,Hopeflam APP103and Hopeflam APP102.