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Mango
Magnesium and sulphur
| Required for: |
Yield, fruit weight, fruit flavour, sugar content
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| High deficiency risk: |
Mg: |
Strongly weathered Ulti- and Oxisols, compacted soils
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S: |
Low organic matter soils, areas with topsoil erosion
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| Deficiency symptoms: |
Mg: |
Fishbone-like interveinal chlorosis starting at the older leaves
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S: |
Pale chlorotic appearance of young leaves
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| Optimal leaf concentrations: |
Mg: |
0.15-0.40%
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S: |
0.15-0.20%
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| Recommendations: |
Young, immature trees should receive 75 – 200 g Kieserite/tree, applied in a circle around the tree prior to the main growth period. For mature trees 250 – 400 g Kieserite/tree are recommended in one split during the onset of the rainy season.
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Leaf symptoms of a severely Mg deficient mango tree.
Sulphur deficiency shows up on the younger leaves, exhibiting pale, chlorotic appearance.
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