https://fearsteve.com/shopping/comparison-of-mainstream-npk-fertilizer-production-processes/ NPK compound fertilizer is a core fertilizer in agricultural production, with a balanced ratio of nitrogen, phosphorus, and potassium, suitable for the growth of various crops. Currently, the mainstream industrial production processes in China include rotary drum granulation, extrusion granulation, and disc granulation. Wed, 03 Jun 2026 07:23:26 UTC en