... Min. Best selling in Southeast Asia The fused calcium-magnesium phosphate (FMP) is a kind of ... content of phosphate (P2O5) in the product ranges from 12%, 14% to 16% above according to the ... it also contains some medium and trace elements such as calcium, magnesium, iron, manganese, silicon, sulfur, etc, ... be absorbed and used by plants.The fused calcium-magnesium phosphate can be used more suitably as ...