Lettuce - White
Symptoms
In case of sulphur deficiency roots are very ramified and longer than normal. They are white in colour.
Causes
Sulphur deficiency on roots
Lettuce - Growth retardation
Symptoms
Sulphur deficiency causes uniform yellow green chlorosis on youngest leaves first. With progressing deficiency the whole plant turns to light green or yellow colour. Growth is clearly restricted.
Causes
Sulphur deficiency
Nitrogen deficiency also shows uniform chlorosis of the whole leaves, but symptoms start on older leaves.
Lettuce - Growth retardation
Symptoms
Sulphur deficiency causes uniform yellow green chlorosis on youngest leaves first. With progressing deficiency the whole plant turns to light green or yellow color.
Growth is clearly restricted.
Causes
Sulphur deficiency compared to optimum supply
Nitrogen deficiency also shows uniform chlorosis of the whole leaves, but symptoms start on older leaves.
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
- Green foliage and healthy growth
