Phosphorite flour, kg

P2O5 — 17; CaO — 25-30%

Phosphorite flour — a post-sowing mineral phosphate fertilizer with prolonged action. It is applied to acidic, podzolic soils, and to calcareous and leached chernozems and red soils to reduce the harmful acidity for plants and microorganisms. It increases protein content in grain, starch in tubers, and sugar in root crops.

Main macroelements content in the fertilizer: phosphorus 20%, calcium 28-32%, and also contains a wide spectrum of microelements Fe, Zn, Mn, K, Co, with their content in phosphorite flour being adequate to their average normal concentration levels in soils.

The fertilizer has good flowability, is non-hygroscopic, and does not cake or lose its physicochemical properties during long-term storage without exposure to atmospheric precipitation.