Phosphorus deficiency 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

  • Increases fruit size
  • Gives better colour
  • Increases firmness
  • Reduces storage disorders
  • Increase fruit calcium levels

Yara recommended fertilizers for Phosphorus



Apple: 5-8 applications of 10 l/ha at 10-14 day intervals commencing at petal fall. Water rate: 500 l/ha. For red coloration: Seniphos at 10 l/ha in 1,000 litres of water has been shown to enhance red colouration. 1 or 2 applications (7 days apart) should be made once the fruit has started to change colour, normally 2 to 3 weeks before harvest.

Read more about YaraVita SENIPHOS