Compound fertilizer refers to a chemical fertilizer that contains two or more nutrient elements in nitrogen, phosphorus, and potassium. Compound fertilizer has the advantages of high nutrient content, few side components, and good physical properties. It plays a very important role in balanced fertilization, improving fertilizer utilization efficiency, and promoting high and stable crop yield
The total amount of nutrients in compound fertilizers is generally relatively high, and there are many types of nutrients. A single application of compound fertilizers can provide at least two or more main nutrients for crops at the same time.
Uniform structure
For example, ammonium phosphate does not contain any useless by-products, and its anions and cations are the main nutrients absorbed by crops. This type of fertilizer has a relatively uniform distribution of nutrients, resulting in a compact structure, uniform nutrient release, and stable and long-lasting fertilizer efficiency compared to powdered or crystalline unit fertilizers. Due to the low number of side components, the adverse effects on the soil are minimal.
Good physical properties
Compound fertilizers are generally made into granules with low moisture absorption and are not easy to clump, making them easy to store and apply, especially for mechanized fertilization.
Storage, transportation and packaging
Due to the small number of by-products in compound fertilizers and the generally higher content of active ingredients compared to unit fertilizers, it can save packaging, storage, and transportation costs. For example, each ton of ammonium phosphate stored and transported is approximately equivalent to a total of 4 tons of superphosphate and ammonium sulfate stored and transported.
