Symptoms
P deficiency results in severe growth reduction. Plant color and habitus are not affected.
Causes
Phosphorus deficiency (right)
Cabbage - Growth retardation
Symptoms
P deficiency results in severe growth reduction. Plant color and habitus are not affected.
Causes
Phosphorus deficiency (right)
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
Early growth, especially for root development
Increases vigor in shorter season crops especially in adverse conditions
Improves marketable yield
Yara recommended fertilisers for Phosphorus deficiency
YaraVita MAGPHOS K
Cabbage: 4 l/ha applied soon after transplanting. Water rate: 200 l/ha.
Alternatively: 2 to 3 applications of 5 to 10 l/ha from stem extension/head development at 7 to 14 day intervals. Water rate: 200 l/ha.