Why do fruits crack? Calcium — or rather, the lack of it — is to blame.
🔬 Calcium isn’t just for bones or eggshells — it’s essential for the firmness and shelf-life of fruits like cherries and sour cherries.
🛑 When fruit lacks calcium, it ripens too quickly… and cracks. Even worse, calcium transport in the plant moves only upward — which means that during drought or excessive humidity, the nutrient may not reach the fruit at all.
👉 The result? Losses at harvest and during sale.
✅ The solution: foliar calcium applications with VitaFer Ca, VitaFer Extra Ca or VitaFer Green — planned as 3–4 treatments, with the last one no later than 2 weeks before harvest.
