Operation precautions of NPK fertilizer granulation coating
In the NPK fertilizer manufacturing process , a coating process is added to make a slow-release fertilizer. Slow-release fertilizer is also called controlled-release fertilizer. The release rate of nutrients in fertilizers can be controlled to a certain extent for continuous absorption and utilization by crops. After the fertilizer is coated, it can reduce the loss of fertilizer nutrients, especially nitrogen, in the soil. Can reduce the frequency of fertilization, save labor and cost. To increase crop yield and income, the application of slow-release fertilizer can improve crop resistance to disease and lodging. The amount of coating agent is controlled according to the length of particle preservation in NPK fertilizer manufacturing process. So what are the precautions about the coating of NPK fertilizer granulation? Fertilizer granule coating machine is composed of screw conveyor, mixing tank, oil pump, main machine, etc. It can effectively prevent the caking of organic fertilize...