Nutrients

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

YaraMila® 15-15-15

YaraMila® 15-15-15

Citrus: Start your annual grove nutritional program out right by applying 200-300 lbs YaraMila® 15-15-15 /acre according to soil test for a balanced nitrogen approach by supplying both nitrate and ammoniacal nitrogen along with fully available Phosphate, Potassium and Sulfur in a homogenous prill. Consult with your agronomist for local recommendations.

Read more about YaraMila® 15-15-15

YaraMila® 21-7-14

YaraMila® 21-7-14

Citrus: Start your annual grove nutritional program out right by supplying 140-240 lbs YaraMila® 21-7-14 /acre. Using YaraMila® 21-7-14 provides a balanced nitrogen approach by supplying both nitrate and ammoniacal nitrogen along with fully available Phosphate, Potassium and Sulfur in a homogenous prill. Consult with your agronomist for local recommendations.

Read more about YaraMila® 21-7-14

YaraVita® MAGPHOS™

YaraVita® MAGPHOS™

Citrus: 1-2 quarts/acre applied at 10 to 14 day intervals following fruit set. Water rate: 50 to 150 gallons/acre.

Read more about YaraVita® MAGPHOS™

YaraVita® SENIPHOS™

YaraVita® SENIPHOS™

Citrus:4 quarts/acre at fruit set with 1 to 2 further applications at 10 to 14 day intervals. Water rate: 50 to 100 gallons/acre.

Read more about YaraVita® SENIPHOS™