Stop NPK Fertilizer Caking Within 30 Days: A 3-Point Anti-Caking System That Cuts Lump Formation by 85%
NPK granule caking is primarily driven by residual moisture above 1.5%, uncontrolled crystal bridge formation during cooling, and hygroscopic salt migration in storage. A three-point intervention—implementing a post-cooling precision humidistat maintaining 45-55% RH, dosing 0.3-0.5% alkyl amine-based coating oil via an in-line atomization drum, and mechanically pre-conditioning granules with surface-crack-resistant morphology using compaction granulation—reduces caking complaints by over 85% and extends shelf life beyond 6 months under high-humidity tropical storage.
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