Cabbage
  • Cabbage
  • Carrots
  • Cauliflower
  • Chili
  • Citrus
  • Lettuce
  • Maize
  • Oats
  • Oil Palm
  • Onions
  • Potatoes
  • Raspberries
  • Strawberry
  • Tobacco
  • Tomato

Nutrients

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

Maize - Chlorosis

Symptoms
The youngest leaves show yellow interveinal discoloration as they come out of the whorl. Mainly the basal part of the leaf is uniformly yellowgreen.

Reasons
Mild Copper deficiency Copper deficiency in corn is rarely seen. N + S deficiency and cool weather produce symptoms similar to mild copper deficiency. Leaf streaking can be similar to Fe deficiency.

Copper deficiency made worse by

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

Copper is important for

  • Improves fertility
  • Good cob development
  • Improves yield
  • Brings harvest date forward