Nutrients

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

Cauliflower - Chlorosis

Symptoms
Symptoms of magnesium deficiency start on older leaves. Chlorosis between the veins progresses from the margins to the middle of the leaflets. The veins remain green and white respectively. Severe deficiency leads to necrotic spots between the veins. Old leaves are stiff and prematurely fall down.

Reasons
Magnesium deficiency

Magnesium deficiency made worse by

  • Sandy soils
  • Acidic soils
  • Potassium rich soils
  • Soils receiving high potash applications
  • Cold wet periods

Magnesium is important for

  • Increases photosynthetic activity maintaining good growth for high yields
  • Improves storage quality