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

  • Essential for energy transfer within the plant, therefore direct effect on yield and quality
  • Boosts yield and bulb size
  • Helps ensuring top yields through use of high rates of N with little quality deterioration

Yara recommended fertilizers for Phosphorus

YaraVita MAGPHOS K

YaraVita MAGPHOS K

Onion: 5 l/ha. Apply when the foliage is 15cm tall, with a second application 10 to14 days later if necessary. Also,1 to 2 applications of 5 l/ha during bulb filling, with a 10 to 14 day interval between sprays. Water rate: 30 to 200 l/ha.

Read more about YaraVita MAGPHOS K

YaraMila COMPLEX