Calcium deficiency on orange 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

  • Leaves are properly formed and remain throughout cycle
  • Overall tree growth is more vigorous
  • Yield often increases
  • Fruit-size more regular and uniform
  • Better quality fruit
  • Better skins - less 'Albedo Breakdown' (creasing)

Yara recommended fertilizers for Calcium

YaraTera CALCINIT

YaraTera CALCINIT

Citrus: Apply 400 kg/ha in multiple applications from growth stage; new flush to early fruit development. Refer to Yara crop program as a guide or contact your local Yara sales agronomist for advice.

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YaraVita STOPIT

YaraVita STOPIT

Citrus: 3-5 applications of 20 l/ha applied at 10 to 14 day intervals commencing when fruit reach 40 to 50 mm diameter (around mid January for Washington Navels in the Riverland and Sunraysia). Water rate: 1000 l/ha minimum.

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N-CAL 15+18Ca+B

N-CAL 15+18Ca+B

Citrus: Fertigate 180 l/ha in multiple applications from growth stage; new flush to early fruit development. Refer to Yara crop programs and contact your local Yara sales agronomist for advice.

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