Onions - Growth retardation
Symptoms
Sulfur deficient plants produce fewer leaves.
Young leaves turn uniformly yellow
Reasons
Sulfur Deficiency
Sulphur deficiency made worse by
- Acidic soils
- Light, sandy soils (leaching)
- Low organic matter
- Poorly aerated soils (waterlogged soils
- ) Areas with low industrial emissions
Sulphur is important for
- Component of enzymes and other proteins
- Necessary for chlorophyll formation
- Bulb weight and yield
- Boosts pungency and sugar content
- Tolerance to pest and disease attack
- Increases skin strength and colour
