Nutrients

N Nitrogen
P Phosphorus
K Potassium
Mg Magnesium
Ca Calcium
S Sulphur
B Boron
Fe Iron
Mn Manganese
Zn Zinc

Banana - Growth retardation

Symptoms
Deficiency symptoms of sulfur start on younger leaves. The leaf color becomes light green and with severe deficiency it becomes yellow. These symptoms affect whole leaf evenly, and neither the veins nor the midrib remain green. The growth of the plant is stunted and new emerging leaves are small and have a yellow-green color.

Reasons
Sulfur deficiency N deficiency symptoms are similar to those described for S deficiency, but symptoms start on older leaves, and with severe deficiency the leaves become necrotic and die off. Iron deficiency also results in chlorosis on younger leaves, but the leaf is not evenly chlorotic. Green zones remain around the midrib and on the leaf tip.

Banana - Growth retardation

Symptoms
Deficiency symptoms of sulfur start on younger leaves. The leaf color is light green and turns yellow at severe deficiency. These symptoms affect the whole leaf evenly, and neither the veins nor the midrib remain green. The growth of the plant is stunted and new emerging leaves are small and have a yellow-green color.

Reasons
Sulfur deficiency N deficiency symptoms are similar to those described for S deficiency, but they start on older leaves, and with severe deficiency the leaves become necrotic and die off. Iron deficiency also results in chlorosis on younger leaves, but the leaf is not evenly chlorotic. Green zones remain around the midrib and on the leaf tip.

Banana - Growth retardation

Symptoms
Deficiency symptoms of sulphur start on younger leaves. The leaf color is light green and at severe deficiency it turns yellow. These symptoms affect the whole leaf evenly, and neither the veins nor the midrib remain green. The growth of the plant is stunted and new emerging leaves are small and have a yellow-green color.

Reasons
Sulfur deficiency N deficiency symptoms are similar to those described for S deficiency, but they start on older leaves, and with severe deficiency the leaves become necrotic and die off. Iron deficiency also results in chlorosis on younger leaves, but the leaf is not evenly chlorotic. Green zones remain around the midrib and on the leaf tip.

Banana - Growth retardation

Symptoms
Deficiency symptoms of sulfur start on younger leaves. The leaf color is light green and turns yellow at severe deficiency. These symptoms affect the whole leaf evenly, and neither the veins nor the midrib remain green. The growth of the plant is stunted and new emerging leaves are small and have a yellow-green color.

Reasons
Sulfur deficiency N deficiency symptoms are similar to those described for S deficiency, but they start on older leaves, and with severe deficiency the leaves become necrotic and die off. Iron deficiency also results in chlorosis on younger leaves, but the leaf is not evenly chlorotic. Green zones remain around the midrib and on the leaf tip.

Banana - Growth retardation

Symptoms
Deficiency symptoms of sulfur start on younger leaves. The leaf color is light green and turns yellow at severe deficiency. These symptoms affect the whole leaf evenly, and neither the veins nor the midrib remain green. The growth of the plant is stunted and new emerging leaves are small and have a yellow-green color.

Reasons
Sulfur deficiency N deficiency symptoms are similar to those described for S deficiency, but they start on older leaves, and with severe deficiency the leaves become necrotic and die off. Iron deficiency also results in chlorosis on younger leaves, but the leaf is not evenly chlorotic. Green zones remain around the midrib and on the leaf tip.

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

  • Chlorophyll synthesis and efficient N-utilization
  • Important in the structure of proteins, amino acids and vitamins
  • Mostly used in the leaves