Why it matters
It reduces photosynthesis, vigour, and yield, and high potassium or acidic soils can induce it; correction restores green and productivity.
When it appears
On sandy/acidic/high-K soils, increasing with demand.
How to identify it
- Interveinal yellowing on older leaves, veins staying green
- Yellowed areas turning brown or reddish
- Common on sandy, acidic, or high-potassium soils
How to manage it
- Address pH and excess potassium.
- Correct quickly with Magnesium Boost (foliar or soil).
Recommended Vegalab program
| Role | Product | Use |
|---|---|---|
| Correction | Magnesium Boost | Soluble magnesium for fast greening |
| Micronutrients | Micro Boost | Trace-element support |
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