Phosphorus deficiency on orange-Citrus

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Nutrients

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

YaraTera KRISTA MAP

Citrus: Apply 75-120 kg/ha in multiple applications from growth stage; flowering to early fruit development. Refer to Yara crop program as a guide or contact your local Yara sales agronomist for advice.

YaraMila COMPLEX

Citrus: Apply 550-750 kg/ha in multiple applications from growth stage; new flush to fruit bulking/maturity. Refer to Yara crop program as a guide or contact your local Yara sales agronomist for advice.