Citrus
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Nutrients

N Nitrogen
P Phosphorus
K Potassium
Mg Magnesium
Ca Calcium
B Boron
Cu Copper
Fe Iron
Mn Manganese
Zn Zinc

Citrus - Deformation

Symptoms
Phosphorus deficiency leads to fruits with coarse and thick peel.

Reasons
Phosphorus deficiency on orange (right)

Citrus - Chlorosis

Symptoms
Symptoms begin at the mature leaves. They partly turn yellow. In severe cases small brownish to bronze freckles occur, spread over the leaf blade and coalesce. This discoloration is first appearing along the main veins.

Reasons
Phosphorus deficiency on leaf

Citrus - Chlorosis

Symptoms
Symptoms begin at the mature leaves.They partly turn yellow. In severe cases small brownish to bronze freckles occur, spread over the leaf blade and coalesce. This discoloration is first appearing along the main veins.

Reasons
Phosphorus deficiency on leaf

Phosphorus deficiency on orange made worse by

  • Acidic or very alkaline (calcareaus) soils
  • Low organic matter
  • Cold or wet conditions
  • Crops with a poorly developed root system
  • Soils with low P reserves
  • Soils with a high phosphate capacity
  • Iron rich soils

Phosphorus is important for

  • Vegetative growth increased
  • Leaves are much greener
  • Fruit set is increased
  • Yield boosted, fruit quality enhanced (sugar/acid improved)
  • Particularly important in young trees with poorly developed root systems

Yara recommended fertilizers for Phosphorus

YaraVita SENIPHOS

YaraVita SENIPHOS

Citrus: 10 l/ha at fruit set with 1 to 2 further applications at 7 to 10 day intervals. Water rate: 500-1000 l/ha.

Read more about YaraVita SENIPHOS

YaraMila COMPLEX

YaraMila COMPLEX

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Read more about YaraMila COMPLEX

Other recommended products

YaraVita CROPLIFT
Citrus: 5 kg/ha applied during spring flush and also during summer/autumn flush. Water rate: 500 to 1000 l/ha
YaraVita CROPLIFT-K
Citrus: 5 kg/ha. Commence applications after fruit set and repeat as necessary at 14 to 21 day intervals. Water rate: 1000 l/ha minimum.
YaraVita MAGPHOS K
Citrus: 5 l/ha applied at 10 to 14 day intervals following fruit set. Water rate: 500 to 1500 l/ha.
YaraTera KRISTA MKP
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YaraTera KRISTALON BLUE
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YaraTera KRISTALON ORANGE
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YaraTera KRISTALON RED
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YaraTera KRISTALON WHITE
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YaraTera KRISTALON YELLOW
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