Ca-Mg fertilizer can supply plant the calcium element,and adjust the soil acidity, best reduce or eliminate the harm to soil and plant coming from Fe Al Mn, prevent "manganese
poisoing"phenomenon.
The content o fmagnesiu oxide and calcium oxide can be customized according to your requirements.
for example:
Appearance: gray granular
MgO: 13%min
CaO: 19%min
Size:2-5mm