Calcium deficiency | Apples

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Nutrients

Apples - Deformation

Symptoms
Low calcium concentrations produce bitter pit shown by depressed areas on apple surface and small, brown corky areas within flesh.

Causes
Calcium deficiency May be confused with boron deficiency. But boron deficiency causes symptoms in early state of fruit development, while calcium deficiency gives symptoms a few weeks before harvesting or in store.

Apples - Deformation

Symptoms
Low calcium concentrations produce bitter pit shown by depressed areas on apple surface and small, brown corky areas within flesh

Apples - Deformation

Symptoms
Low calcium concentrations produce bitter pit shown by depressed, sometimes dark areas on apple surface and small, brown corky areas within flesh.

Causes
Calcium deficiency May be confused through boron deficiency. Boron deficiency causes symptoms in early stage of fruit develpment, while calcium deficiency gives symptoms a few weeks before harvesting or in store.

Apples - Deformation

Symptoms
Low calcium concentrations produce bitter pit shown by depressed spots on apple surface and small, brown corky areas within flesh.

Apples - Deformation

Symptoms
Low calcium concentrations produce bitter pit shown by depressed areas on apple surface and small, brown corky areas within flesh

Causes
Calcium deficiency (left) May be confused with boron deficiency. But boron deficiency causes symptoms in early state of fruit development, while calcium deficiency gives symptoms a few weeks before harvesting or in store.

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

Reduces Bitter Pit and other related disorders
Increases fruit size
Gives better fruit colour
Increases fruit firmness
Reduces storage disorders

Yara recommended fertilisers for Calcium deficiency

YaraVita STOPIT

Apple: 2 to 5 l/ha applied at bud burst and repeated at 7 to 10 day intervals as necessary to the beginning of flowering. Regular applications of 5 to 10 l/ha at 7 to 14 day intervals from petal fall to one week before harvest. Water rate: 150 to 500 l/ha.