How to make NPK fertilizer?
NPK fertilizer, or nitrogen-phosphorus-potassium compound fertilizer, is an indispensable nutrient supplier in agricultural production. Its production is a meticulous process of scientifically integrating the three major elements of nitrogen, phosphorus, and potassium. Each step is crucial to the fertilizer's nutrient balance and quality stability, and a complete NPK fertilizer production line is the core carrier for realizing this series of processes. From raw materials to finished product, it undergoes multiple rigorous processes, ultimately transforming the three core nutrients into forms easily absorbed by crops. The first step in production is raw material pretreatment. Nitrogen fertilizer raw materials are mostly urea, synthesized from liquid ammonia and carbon dioxide under high temperature and pressure; phosphorus fertilizers often use monoammonium phosphate, produced by acid decomposition of phosphate rock; potassium fertilizers are obtained from potash ore, which is crush...