Easy storage and transportation: After the organic fertilizer is pelleted by Rotary Drum Granulator or Disc Granulator/Pan Granulator, the volume of the fertilizer is significantly reduced and the weight is increased, thus greatly facilitating the storage and transportation process. At the same time, the composition of organic fertilizer particles is uniform, which facilitates accurate control of fertilizer application amount, effectively reduces waste, and significantly improves the utilization rate of fertilizer.