Calcium deficiency made worse by
- Acidic soils
 - Sandy or light soils (leaching)
 - Acid peat soils
 - Soils rich in sodium
 - Soils rich in aluminium
 - Drought conditions
 - Fruit high in nitrogen or potassium
 - Large fruit
 
Calcium is important for
- Growth of roots and leaves, resulting in higher yields
 - Plant and fruit integrity
 - Storage quality and green life