Lettuce - White
In case of sulphur deficiency roots are very ramified and longer than normal. They are white in colour.
Sulphur deficiency on roots
Lettuce - Growth retardation
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.
Sulphur deficiency
Nitrogen deficiency also shows uniform chlorosis of the whole leaves, but symptoms start on older leaves.
Lettuce - Growth retardation
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.
Sulphur deficiency compared to optimum supply
Nitrogen deficiency also shows uniform chlorosis of the whole leaves, but symptoms start on older leaves.
- Acidic soils
- Light, sandy soils (leaching)
- Low organic matter
- Poorly aerated soils (waterlogged soils
- ) Areas with low industrial emissions
- Green foliage and healthy growth
