Sulphur deficiency-Lettuce

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.

Reasons
Sulphur deficiency Nitrogen deficiency also shows uniform chlorosis of the whole leaves, but symptoms start on older leaves.

Lettuce - Growth retardation

Reasons
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

Yara recommended fertilizers for Sulphur

YaraTera KRISTA MgS

Lettuce (field grown): For fertigation, use 3-4kg in 200L stock solution, Ec = 1.0 (transplanting phase), 1.5 (generative phase), 1.6-2.2 (mature phase, depending on local conditions)