MAGNESIUM  (Mn) 24.30  Atomic Weight

(Secondary Nutrient)

Magnesium is the eighth most abundant element in the earth’s crust, comprising 2.5%.  It comprises 0.13% of seawater.  It is about one sixth as plentiful as Potassium in human body cells, where it serves as a catalyst for enzyme activities in carbohydrate metabolism  It does not occur in nature un-combined.

Magnesium is an essential element in both plant and animal life, and is non toxic. Plant uptake is in the form of Magnesium ion (Mg++).  The chlorophyll molecule contains magnesium, and it is therefore essential for photosynthesis.  Magnesium serves as an activator for many plant enzymes required in growth processes.  It is mobile in plants and can be readily translocated  from older to younger tissue under conditions of deficiency.