Magna Marta Cal Mag is known as a secondary nutrient as plants need them in smaller quantities. As LED’s are becoming more popular, we are seeing the need to add Cal-mag at the top end.
Magnesium is in the heart of the Chlorophyl molecule, it is what helps drive photosynthesis in plants, without it plants cannot capture the suns energy needed to produce Glucose. Magnesium gives plants their lovely green colour and is also used to metabolise carb..
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