METHOD OF PRODUCING ENCAPSULATED FERTILIZER Russian patent published in 2025 - IPC C05B1/04 C05G3/40 C05G5/35 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture and specifically to mineral fertilizer containing phosphorus and silicon components with controlled output of phosphorus into the solution, which enables to synchronize the release of nutrients with plant needs. Method of producing encapsulated fertilizer comprises subjecting double superphosphate granules to treatment 3 times with 20% aqueous sodium silicate solution for 1-2 minutes, followed by drying product at 100-120 °C after each treatment cycle.

EFFECT: obtaining phosphorus fertilizer with slow release from phosphorus granules, reduced chemical bonding with soil, more complete provision of growing seedlings with phosphorus without phytotoxicity.

1 cl, 2 tbl