Nutrients

N Nitrogen
P Phosphorus
K Potassium
Mg Magnesium
Ca Calcium
S Sulphur
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 10 to 14 day intervals. Water rate: 200 l/ha.

Read more about YaraVita MAGPHOS K

Other recommended products

YaraMila COMPLEX
Carrots: 375 to 625 kg/ha as a base dressing
YaraVita CROPLIFT PRO
Carrot: 2.5 to 5 kg/ha. Repeat at 10 to 14 day intervals as necessary. Water rate: 200 l/ha.
YaraVita MAIZE BOOST
Carrot: 3 to 5 l/ha when crop is 15 cm tall. Repeat if necessary at 10 to 14 day intervals. Water rate: 200 l/ha.
YaraVita SENIPHOS
Carrot: 5 l/ha. 2 to 3 applications when crop is 15 cm tall and at 7 to 10 day intervals. Water rate: 200 l/ha.