Flinders Calcium Silicate
Calcium and silicon soil amendment for improved soil structure and crop resilience.
Supporting Soil & Crop Health
Flinders Calcium Silicate delivers plant-available silicon and calcium in a single application to support crop resilience and soil conditioning.
Silicon for plant strength
Silicon reinforces plant cell walls, helping crops better tolerate drought, salinity, frost and disease pressure. Growers report stronger stems, improved root development and more uniform establishment.
Calcium for soil structure
Calcium supports soil aggregation, nutrient balance and root function.
By supplying calcium alongside silicon, Flinders Calcium Silicate assists with:
• Improved soil structure and friability
• Better root penetration and early vigour
• Enhanced nutrient uptake
• Reduced surface crusting in susceptible soils
Manufactured for Consistency. Trusted for Performance.
Flinders Calcium Silicate is processed under strict quality control to ensure stable elemental analysis and dependable field performance.
Manufactured from a recovered mineral source and refined at our Queensland facility, it delivers a consistent, contaminant-free product growers can apply with confidence.
Practical Benefits in Commercial Cropping
Across a range of field and tree crop systems, growers report:
• Stronger stems and improved standability
• More uniform crop establishment
• Improved tolerance to seasonal stress
• Better soil structure and easier cultivation
• Reduced surface crusting in lighter soils
Available in Two Application Grades
Coarse
For incorporation prior to planting.
• >95% passing 14mm screen
• Designed for pre-plant soil incorporation
• Suitable for field, tree and vine systems
• Commonly applied before compost or fertiliser programs.
Fine
Designed for surface application or top-dressing.
• Spread using conventional belt spreaders
• Similar handling to gypsum or lime
• Suitable for pre-plant or post-plant application
• Can be irrigated or rained in after spreading.
Application of Flinders Calcium Silicate
Flinders Calcium Silicate can be incorporated prior to planting in field crops or applied as a post-plant side dressing in tree and vine systems.
Application timing and rates vary depending on soil type, crop and production goals. As silicon is gradually removed through crop harvest and natural soil processes, reapplication is typically considered every 12–18 months within ongoing soil management programs.
In addition to supporting plant performance, it may also be used in soil conditioning programs where calcium input is required.
Our agronomists can assist with application timing and customised rates suited to your soil conditions.
About Flinders
