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

Tobacco - Chlorosis

Symptoms
Mature leaves show mosaic-like interveinal chloroses. Leaf margins of lower leaves turn pale brown.

Reasons
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 fertilizers for Copper

YaraVita COPTRAC DUAL

YaraVita COPTRAC DUAL

Tobacco: 0.5 l/ha two to three weeks after transplanting (3 to 4 leaf stage). Repeat 10 days later if necessary. Water rate: 30 to 500 l/ha.

Read more about YaraVita COPTRAC DUAL