Tomato
  • Barley
  • Cabbage
  • Coffee
  • Lettuce
  • Maize
  • Onions
  • Potatoes
  • Tobacco
  • Tomato
  • Wheat

Copper deficiency vs. optimum made worse by

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

Copper is important for

  • Photosynthesis
  • Enzyme process
  • Manufacturing lignin
  • Protein synthesis