The fertilizer produced by the NPK line is made from a powdery chemical material containing nitrogen, phosphorus and potassium. Commonly, urea, ammonium chloride, calcium nitrate, and ammonium sulfate can be used as nitrogen sources. More important is phosphorus
Monoammonium acid, diammonium phosphate, calcium magnesium phosphate, and triple superphosphate are often used to provide the phosphate element. In addition, the potassium sources of NPK fertilizer include potassium chloride, potassium salt, potassium sulfate and so on.
The nitrogen, phosphorus and potassium fertilizer process is composed of crusher, fertilizer mixing machine, granulator (roll granulator, drum granulator, etc.), screening machine, fertilizer coating machine, fertilizer automatic packaging machine.
At present, the actual utilization rate of fertilizers in China is only 30%-45%, and even lower in some areas. After the application of organic fertilizers, beneficial biological activities improve the soil structure and increase the soil's water and fertilizer retention ability, thus reducing the loss of nutrients and increasing the effective utilization rate of fertilizers to more than 50%. And can reduce the amount of fertilizer and fertilizer costs. Therefore, the fertilization method of "organic fertilizer as the main, fertilizer as the auxiliary" is the reasonable fertilization method at present.
Organic fertilizer is the energy of microbial life, so fertilizer is the inorganic nutrition of microbial growth and development. The two combine microbial activity to further break down the organic fertilizer. The activity of soil microorganisms can also produce vitamins, biotin, niacin, etc. Increase soil nutrients, improve soil vitality and crop growth. Npk fertilizer is used in combination with organic fertilizer to coordinate soil nutrients and promote crops