silicates Portugal

...% to 31% equivalent to 62-67.5 BPL% Calcium (Ca) is another essential element found in rock phosphate It plays a vital role in plant cell structure, root development, and nutrient uptake, it can range from 30% to 50% Carbonates (CO3) are common impurities found in phosphate rock, typically exist in the form of calcium carbonate (CaCO3) or magnesium carbonate (MgCO3) Silicates (SiO2) are another impurity often present in phosphate rock They can have positive effects on soil structure, water-holding capacity, and nutrient retention, it can range from a few percent to over 20%...