Nutrients

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

Cabbage - Growth retardation

Symptoms
Stunted growth caused by Cu deficiency.

Reasons
Copper deficiency (right) Copper deficiencies are more common on organic or sandy soils and where excessive nitrogen rates have been applied.

Cabbage - Deformation

Symptoms
Leaves are rather elongated in shape and bent down. Their color is pale with broad white leaf veins. Plant habitus is loose, headforming inhibited.

Reasons
Copper deficiency (right) Copper deficiencies are more common on organic or sandy soils and where excessive nitrogen rates have been applied.

Cabbage - Deformation

Symptoms
Leaves are rather elongated in shape and bent down. Their color is pale with broad white leaf veins. Plant habitus is loose, headforming inhibited.

Reasons
Copper deficiency Copper deficiencies are more common on organic or sandy soils and where excessive nitrogen rates have been applied.

Cabbage - Deformation

Symptoms
Leaves are rather elongated in shape and bent down. Their color is pale with broad white leaf veins. Plant habitus is loose, headforming inhibited.

Reasons
Copper deficiency Copper deficiencies are more common on organic or sandy soils and where excessive nitrogen rates have been applied.

Copper deficiency vs. healthy plant made worse by

  • Organic soils
  • Chalky soils
  • Sandy soils
  • Reclaimed heathland
  • High nitrogen applications

Copper is important for

  • Lignin formation, chlorophyll performance and regulation of superoxide radicals
  • Necessary for blue pigment plastocyanin, seen in broccoli florets