Nutrients

N Nitrogen
P Phosphorus
K Potassium
Mg Magnesium
Ca Calcium
S Sulphur
Fe Iron
Mn Manganese
Mo Molybdenum
Zn Zinc

Pepper - Chlorosis

Symptoms
Interveinal areas of young leaves become chlorotic, while even the small the veins remain dark green.

Reasons
Manganese deficiency Iron deficiency causes interveinal chlorosis on young leaves as well. Magnesium deficiency symptoms look similar, but start on older leaves and only the main veins stay green.

Manganese deficiency made worse by

  • Organic soils
  • Sandy soils
  • High pH
  • Cold wet periods
  • Fluffy soils

Manganese is important for

  • Nitrate reduction
  • Photosynthesis
  • Protein synthesis
  • Maintains strong growth and development