Ammonium Polyphosphate APP, as a nitrogen-containing phosphate, is in the form of a white powder. Its chemical formula is (NH4PO3)n(OH)2, and its molecular structure is unique, consisting of a complex combination of long chains, chains and branches. The properties of this product vary depending on the number of monomers in the molecule, and are also affected by the frequency of branching. In the agricultural sector, ammonium polyphosphate is widely regarded as an efficient and versatile choice.
Ammonium Polyphosphate APP can be divided into three categories according to its degree of polymerization: oligomeric (n<20), mesomeric and high (n>50). Among them, high-polymerization crystalline type II ammonium polyphosphate is known for its excellent water insolubility, high decomposition temperature and good compatibility with polymer materials. It also has the characteristics of low toxicity, low smoke and inorganic, so it is often used as a high-efficiency inorganic flame retardant. On the other hand, oligomeric short-chain polymers, such as pyrophosphate, trimer and tetramer, are ideal for agricultural water-soluble fertilizer production due to their easy solubility and increased solubility as the chain length increases.
Agricultural ammonium polyphosphate, as a highly efficient agricultural fertilizer, has many excellent properties. Its rich nutrient content and excellent solubility allow phosphorus to remain highly active and not easily fixed by the soil after being applied to the soil. In addition, it can effectively chelate and activate trace elements in fertilizers and soil, significantly improving the absorption and utilization rate of these nutrients. Agricultural ammonium polyphosphate not only has a slow-release effect, but also can increase efficiency and quality, provide all-round nourishment for crops, and ensure the safety of soil and crops.
Compared with ordinary ammonium phosphate, the mobility of phosphorus in Ammonium Polyphosphate APP is significantly improved. This feature enhances the activity of phosphorus in the soil and greatly increases the movement distance, thereby promoting the migration of phosphorus fertilizer to the deep soil layer. In this way, the absorption of phosphorus nutrients by the crop root system is increased, thereby achieving the effect of strengthening roots and promoting seedlings.
Inorganic chelating agent in base fertilizer. Ammonium Polyphosphate APP significantly increases the activity of trace elements such as zinc, manganese, iron, and magnesium in the soil by chelating these elements. In this way, the absorption of plant roots is increased, thereby improving the utilization efficiency of nutrients.
Ammonium Polyphosphate APP achieves a perfect combination of fast-acting and long-acting properties with its scientific ratio of fast-acting and long-acting ingredients. Its longest release period is up to 100 days, which fully meets the nutrient needs of crops throughout the growth period. It can be completely dissolved in water without leaving any residue, and its solubility exceeds 100g, ensuring the stability of its physical and chemical properties. This fertilizer can be compatible with a variety of fertilizer raw materials and is particularly suitable for water-fertilizer integration technologies such as drip irrigation.
Ammonium Polyphosphate APP, a new functional fertilizer, combines concentration, chelation, and synergism. It also has soil improvement functions and is harmless to the environment, soil, and crops. It has huge market potential and is expected to replace monoammonium phosphate and diammonium phosphate and become the mainstream choice for agricultural phosphate fertilizer in the future.
