| 摘要 |
<p>The mineral fertilizer, based on magnesium sulphate, comprises 16-30% of total MgO, 12-30% of MgO soluble in water and 30-50% of sulphur (%SO3) and preferably, it is found in granulated form. The fertilizer may be obtained by solubilizing with sulphuric acid, a mixture which contains magnesium formed by products coming from the extraction and processing of magnesite, such as cyclone powder, magnesium hydroxide and magnesium calcium carbonate. The fertilizer is capable of supplying magnesium to soils, crops and fields which require the same.</p> |
