We classify calcium (Ca) levels in soil based on their impact on crop performance and nutrient balance:

📊 Calcium Levels

• 1–4% → Low: Production-limiting

• 5–8% → Moderate

• 8–12% → Optimal

• 12–15% → High: May limit crop performance

• >15% → Excessive: Strongly limits uptake of Mg (Magnesium), K (Potassium), and affects water flow

🔍 What Each Level Means:

🟥 Low (1–4%)

• Crops often show visible calcium deficiency (leaf-level symptoms)

• Poor infiltration and water retention

• Reduced accumulation of usable water in the root zone

🟧 Moderate (5–8%)

• May or may not limit crop performance

• Deficiencies may appear under low rainfall

• Under moderate or high rainfall, crops may perform normally

🟩 Optimal (8–12%)

• Supports high crop growth rates

• Encourages water retention

• Promotes healthy soil structure

🟨 High (12–15%)

• Begins to interfere with the uptake of Mg, K, and S

• Imbalance may occur, especially in dicot species

🟥 Excessive (>15%)

• Strongly restricts the absorption of magnesium, potassium, and sulfur

• Affects nutrient balance and water movement

• Makes crop management more complex

📌 Note: Calcium plays a crucial role in soil health, but excess can be as limiting as deficiency. At Alba Agro, we help you find the right balance to optimize growth and nutrient uptake.