Calcium is required by plants for activity in meristems (growth tip), it is a major constituent of cell walls. A sufficient source of calcium may be unavailable in acid soils.

Symptoms of deficiencyEdit

Main article: Calcium deficiency

Weakened cell walls leading to tissue dying Inward curling, pale young leaves Examples are bitter pit in apples, blossom end rot in tomatoes[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