Nutrients

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

Strawberry - Chlorosis

Symptoms
First the young, immature leaves show a uniform light-green colour. Later interveinal areas become very light green with veins remaining green. With severe deficiency interveinal areas and veins bleach exept for a broad green border at the leaf margin

Reasons
Copper deficiency Copper deficient leaf blades contain less than 3ppm of copper at dry basis. Early symptoms of sulphur, molybdenum, manganese or iron deficiency are similar to the early symptoms of copper deficiency.

Copper deficiency made worse by

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

Copper is important for

  • Component of enzymes
  • Important role in photosythesis and phenol metabolism of plants
  • Regulation of destructive superoxide radicals inside cells
  • Prevention of fungal diseases

Yara recommended fertilisers for Copper

YaraVita COPTREL 500

YaraVita COPTREL 500

Strawberry (field grown): 0.5 l/ha applied early in the season before the start of flowering. Water rate: 200 to 400 l/ha.

Read more about YaraVita COPTREL 500

Other recommended products

YaraTera KRISTALON BLUE LB
YaraTera KRISTALON BLUE LB
Strawberries (fertigated): Crop specific recipes for 2 tank (A & B tank) systems can be produced using the Yara Fertigation Plan, for more details contact your local Yara area manager.
YaraTera KRISTALON GREEN LB
YaraTera KRISTALON GREEN LB
Strawberry: (fertigated): Crop specific recipes for 2 tank (A & B tank) systems can be produced for protected crops using the Yara Fertigation Plan, for more details contact your local Yara area manager.
YaraTera KRISTALON RED
YaraTera KRISTALON RED
Strawberries (fertigated): Crop specific recipes for 2 tank (A & B tank) systems can be produced using the Yara Fertigation Plan, for more details contact your local Yara area manager.