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
YaraLiva NITRABOR
Citrus: 150-300 kg/ha applied monthly in early spring (ex. August + September). For more detailed advice on rates and timings, contact your local Yara Agronomist.
Read more about YaraLiva NITRABORYaraTera CALCINIT
Citrus: 150-300 kg/ha applied monthly in early spring (ex. August + September). For more detailed advice on rates and timings, contact your local Yara Agronomist.
Read more about YaraTera CALCINITYaraVita CALTRAC BZ
Citrus: 5 l/ha from fruit set until 6 weeks before harvest at 10 to 14 day intervals. Water rate: 500 l/ha minimum. Alternatively, 150 mls / 100 l from fruit set until 6 weeks before harvest at 10 to 14 day intervals, based on a typical TRV of 2500 l/ha and a maximum TRV of 4000 l/ha.
Read more about YaraVita CALTRAC BZYaraVita SENIPHOS
Citrus: 5 to 10 l/ha applied during fruit development at 7 to 14 day intervals. Water rate: 500 l/ha minimum. Alternatively, 250 mls / 100 l applied during fruit development at 7 to 14 day intervals, based on a typical TRV of 2500 l/ha and a maximum TRV of 4000 l/ha.
Read more about YaraVita SENIPHOSYaraVita STOPIT
Citrus: 3 to 5 applications of 10 - 20 l/ha applied at 10 to 14 day intervals commencing when fruit reaches 40 to 50 mm size. Water rate: minimum 1000 l/ha. Alternative, 3 applications of up to 300 mls/100 l applied during the period from fruit expansion to harvest. Allow 10 to 14 day intervals between applications. Based on a maximum TRV of 4,000 l/ha.
Read more about YaraVita STOPIT
