Nutrients

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

Cauliflower - Deformation

Symptoms
Copper deficiency occurs very seldom. Affected plants show chlorosis on expanding and mature leaves. Heart necrosis might also be caused by Cu undersupply.

Reasons
Copper deficiency (Photo: Chinese cabbage)

Copper deficiency 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

Yara recommended fertilizers for Copper

YaraVita COPTREL 500

YaraVita COPTREL 500

Cauliflower: 0.5 l/ha applied at the 4 to 6 leaf stage. For moderate to severe deficiency, one or two repeat applications should be made at 10 to 14 day intervals. Water rate: 200 l/ha.

Read more about YaraVita COPTREL 500

Other recommended products

YaraVita CROPLIFT PRO
Cauliflower: 2.5 to 5 kg/ha. Repeat at 10 to 14 day intervals as necessary. Water rate: 200 l/ha.