Nutrients

N Nitrogen
P Phosphorus
K Potassium
Mg Magnesium
Ca Calcium
S Sulphur
B Boron
Fe Iron
Mn Manganese
Mo Molybdenum
Zn Zinc

Canola - Chlorosis

Symptoms
In their intercostal area, leaves show chloroses with white to pink necrotic patches. A narrow margin along the leaf veins remains green.

Reasons
Zinc deficient plants. Generally, oilseed rape is not sensitive to zinc deficiency.

Canola - Deformation

Symptoms
Growth of Zn deficient plant is severely stunted - habitus is dwarfed, with some single flowers. Habitus of the whole plant is rosette-like, the leaves remain small and dark green. No formation of flowers or pods at severe deficiency. Older leaves show chlorosis and starting necrosis towards the leaf tips and margins.

Reasons
Zinc deficient plants. Generally, oilseed rape is not sensitive to zinc deficiency.

Canola - Deformation

Symptoms
Growth of Zn deficient plant is severely stunted. Older leaves show whitish chlorosis along the margin margins, the lowest ones express a white mottling and leaf blade deformation.

Reasons
Zinc deficient plants. Generally, oilseed rape is not sensitive to zinc deficiency.

Zinc deficiency made worse by

  • Organic soils
  • High pH soils
  • Soils rich in phosphorus
  • Soils receiving high phosphorus application
  • Cold wet conditions

Zinc is important for

  • Proper formation of flowers and pods
  • Oilseed rape is not sensitive to Zn deficiency