Magnesium is required by plants for correct functioning of photosynthesis and movement of phosphorus. It is constituent of chlorophyll.

Symptoms of deficiencyEdit

Main article: Magnesium deficiency

Intervein chlorosis, leaf tips curl upwards, early leaf fall[1].


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Mineral nutrients
Primary macronutrients Nitrogen · Phosphorus · Potassium
Secondary macronutrients Calcium · Magnesium · Sulphur
Micronutrients Boron · Chloride · Copper · Iron · Manganese · Molybdenum · Zinc