NTS Soft Rock™

Natural phosphate. Lasting availability. Healthier, more resilient soil.

NTS Soft Rock™ is a bio-friendly, colloidal clay-based rock phosphate which will provide a steady supply of phosphorus while supporting the biological health and mineral balance of the soil.

Unlike highly processed phosphate fertilisers, NTS Soft Rock™ is an unprocessed, colloidal phosphate source. Its nutrients are held in colloidal form, helping maintain ongoing plant availability and reducing the risk of nutrients becoming locked away in the soil.

With approximately 8–9% phosphorus, 19.3% calcium, high levels of silicon and an exceptional range of trace elements, NTS Soft Rock™ provides much more than phosphate alone. It is a valuable component of a soil regeneration program, helping replenish minerals and create a more supportive environment for beneficial soil microbes.

Phosphate Without the Lock-Up

Phosphorus can become unavailable to plants when it reacts with other elements in the soil. NTS Soft Rock™ takes a different approach, providing phosphorus in a naturally occurring colloidal form designed for ongoing availability throughout the growing season.

Its colloidal calcium component is also highly plant-available compared with conventional limestone, while the accompanying minerals and trace elements help contribute to broader soil remineralisation.

Feed the Soil, Not Just the Plant

Healthy soils depend on a diverse supply of minerals and active microbial communities. The colloidal minerals in NTS Soft Rock™ provide a bio-friendly source of nutrients that can support soil microbial activity while helping restore mineral diversity to depleted soils.

NTS Soft Rock™ is also naturally high in silicon. Silica is an important component of plant structure and function, and research has associated higher plant Brix levels with the presence of silica.

A Cleaner Alternative to Processed Phosphate

Processed phosphate fertilisers can contain elevated levels of cadmium, a heavy metal of environmental and health concern. NTS Soft Rock™ is an unprocessed phosphate source, providing an alternative approach for growers seeking to minimise their reliance on highly processed phosphate products.

Benefits

• Full-season phosphate supply in a naturally occurring colloidal form.
• 8–9% phosphorus to support essential plant development.
• Approximately 19.3% calcium in a highly plant-available colloidal form.
• High in silicon to support healthy plant growth and soil mineral balance.
• Rich in trace elements for broader nutritional support.
• Helps remineralise depleted soils and restore mineral diversity
• Bio-friendly formulation that works alongside beneficial soil microbes.
• Colloidal minerals provide a natural source of nutrients for soil biology.
• Unprocessed phosphate to help minimise concerns associated with cadmium in some processed phosphate fertilisers.
• Australian Certified Organic – ACO Registered Farm Input 456AI

Build Soil Fertility from the Ground Up

NTS Soft Rock™ is more than a phosphate fertiliser. It is a naturally derived mineral resource designed to work with the soil ecosystem—supplying phosphorus, calcium, silicon and trace elements while supporting the biological processes that underpin healthy, productive soil.

NTS Soft Rock™ — natural phosphate for long-term plant availability and soil regeneration.