Nutrients

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

Tobacco - Deformation

Symptoms
Leaf margins are crinkled. Growth is stunted.

Reasons
Molybdenum deficiency (right plant)

Molybdenum deficiency made worse by

  • Acid soils
  • Low pH
  • Low levels of soil organic matter

Molybdenum is important for

  • Efficient use of nitrate and P metabolism