What it is
Agricultural limestone formulated for controlled soil pH correction and nutrient support, where calcium carbonate content, particle fineness, and consistency determine the rate and effectiveness of acidity neutralisation.
What it does
- Neutralises soil acidity and restores pH to the range required for nutrient uptake
- Improves nutrient availability by correcting calcium-deficient soil conditions
- Supports root development through improved soil structure and chemistry
- Enhances soil aggregation and water retention
Where it’s typically used
Croplands, plantations, and soil conditioning programmes requiring controlled pH correction and calcium supplementation.
Quality options
- CaCO₃ ≥ 90%
- CCE ≥ 90%
- MgCO₃: 1 – 4%
- AI ≤ 3%
- Moisture ≤ 2%
Size
- 0 – 2 mm granules
- 100 mesh powder
- 200 mesh fine grade
- Controlled PSD
Applications
- Soil liming and acidity control
- Nutrient balancing in fields
- Fertilizer neutralisation and filler use
FAQs
If you have questions about limestone products, specifications, or typical applications, the answers below address some of the most common topics. For anything more specific, our technical team is happy to help.
What makes SoilCal a strategically superior input for large-scale crop production?
With CCE ≥ 90% and CaCO₃ ≥ 90%, SoilCal delivers consistent, high-efficiency pH correction across diverse soil profiles — reducing input variability and maximising agronomic ROI at scale.
How does SoilCal's multi-grade sizing serve diverse agronomic and fertilizer formulation demands?
Three precision grades — 0–2 mm granules, 100 mesh powder, and 200 mesh fine — allow procurement teams to match reactivity profile exactly to application: field liming, fertilizer blending, or fine-grade conditioning.
What quality assurances make SoilCal a trusted neutraliser in compound fertilizer systems?
High-purity calcitic parameters — CaCO₃ ≥ 90%, AI ≤ 3%, moisture ≤ 2% — ensure formulation predictability. Its controlled low-magnesium profile (MgCO₃ 1–4%) is a deliberate design choice where magnesium enrichment is not required.
When soils require both calcium and magnesium, is there a SoilCal solution?
Yes. SoilCal M — our high magnesium Limestone grade — delivers MgCO₃ at 12–15% alongside high-purity calcium, purpose-built for dual-nutrient soil correction within the same trusted product family.













