Blossom-end rot, tip burn and fruit cracking are calcium-movement problems. A steady calcium supply — with nitrate nitrogen — keeps fruit firm and clean.
Why calcium disorders happen
Calcium moves with water through the plant. During rapid fruit growth or moisture swings, the fruit tip gets starved even when soil calcium is adequate. Regular, small calcium doses keep it flowing to where it’s needed.
Calcium Nitrate Dosage
| Application | Rate | Stage |
|---|---|---|
| Drip / Fertigation | 2–4 L per acre | Through fruit development |
| Foliar spray | 3–5 ml per litre | Early fruit set onward |
👉 Pro tip: Keep soil moisture even — irregular watering triggers blossom-end rot no matter how much calcium you add.
Key Takeaways
- Prevents BER, tip burn, cracking
- Nitrate-N for clean uptake
- Improves firmness and shelf life
- Apply little and often
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Disclaimer: doses are general guidelines. Always adjust to crop, soil test, growth stage and local agronomist advice.