Nutrients

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

Carrots - Growth retardation

Symptoms
Root growth of phosphorus deficient plants is severely stunted.

Reasons
Phosphorus deficiency (right) Visual deficiency symptoms on cabbage leaves are rarely observed in the field.

Phosphorus deficiency vs. healthy plant 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

  • Energy storage and transfer
  • Nucleic acid formation
  • Protein synthesis
  • Cell membrane component
  • Carbohydrate metabolism

Yara recommended fertilizers for Phosphorus

YaraVita MAGPHOS K

YaraVita MAGPHOS K

Carrot: 3 to 5 l/ha when crop is 15 cm tall. Repeat if necessary at 7 to 14 day intervals. Water rate: 200 l/ha.

Read more about YaraVita MAGPHOS K

YaraMila COMPLEX

YaraMila COMPLEX

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Read more about YaraMila COMPLEX

Other recommended products

YaraVita CROPLIFT
Carrot: 5 kg/ha when there is sufficient foliage to intercept the spray and at 10 to 14 day intervals. Water rate: 200 l/ha.
YaraVita CROPLIFT-K
Carrots: 5 kg/ha. When sufficient leaf area to intercept spray with 10 to 14 day intervals between applications. Water rate: 200-500 l/ha.
YaraMila 8-11-20
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YaraTera KRISTA MKP
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