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Cauliflower
Magnesium
| Required for: |
Yield, plant health (reduction of hollow stem disorder)
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| High deficiency risk: |
Mg: |
Acid, strongly weathered soils or calcareous soils with large NH4+ and K+ applications
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S: |
On soils with a low organic matter content and poor microbial activity
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| Deficiency symptoms: |
Mg: |
Leaves are white or yellow mottled, leaf margin may show marginal scorch, leaves brittle
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S: |
Heads remain small and show a pale green colour, similar to N deficiency.
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| Recommendations: |
Based on soil analysis and removal by the crop, 75-120 kg Kieserite/ha are recommended. On Mg poor soils 1.5-2.0 times that amount is required.
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Mg deficiency symptoms in cauliflower: Chlorotic marbling between veins.
 Balanced nutrition is essential to be able to meet consumer requirements.
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