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
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.
Read more about YaraTera CALCINITYaraVita 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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