NTS SOFT ROCK 25KG NUTRI-TECH NTSSR-25
NTS Soft Rock is a bio friendly, colloidal clay-based rock phosphate fertiliser designed to provide a continuous, plant available supply of phosphorus, calcium, silicon, and trace elements throughout the growing season. It improves soil fertility, enhances microbial activity, and supports long-term soil health and crop performance.
Key Benefits
• Full-season phosphorus supply with reduced risk of soil lock-up.
• Bio-friendly and microbe-friendly clay colloids support healthy soil biology.
• Rich in essential soil minerals and trace elements for soil re-mineralisation.
• High plant-available calcium provides liming benefit.
• High silicon content may increase plant brix and strengthen plant tissues.
• Low cadmium levels compared with processed phosphate fertilisers.
• Suitable for organic farming (Australian Certified Organic input).
Typical Analysis (Dry Basis)
Calcium (Ca): 19.3%
Silicon (Si): 15-26%
Total Phosphorus (P): 8-9%
P (citrate insoluble): 7.2-8.2%
P (citrate soluble): 0.80%
P (water soluble): 0.03%
Iron (Fe): 2.0%
Potassium (K): 0.7%
Magnesium (Mg): 4600 ppm
Sulfur (S): 1500 ppm
Manganese (Mn): 1100 ppm
Zinc (Zn): 260 ppm
Copper (Cu): 130 ppm
Particle Size: Typically 1–2mm granule for 25kg bag.
Applications & Rates
Broadacre / Cropping: 200kg to 1.5tonne per hectare, depending on soil test and crop requirements.
Home & Garden: Approx. 1.25kg per 10?m² for soil enrichment.
Intended Uses
• Crop production (crops, vegetables, fruit trees)
• Pasture and hay production
• Soil re-mineralisation
• Organic and regenerative farming systems
• Home gardens and landscaping
Storage & Handling
• Store in a cool, dry place in the original packaging.
• Keep bags sealed until ready to use to prevent moisture absorption.
Safety & Regulatory
• Not classified as hazardous under typical agricultural standards.
• Registered Australian Certified Organic Farm Input (ACO).
Common Questions
What is NTS Soft Rock used for?
NTS Soft Rock is a clay-based rock phosphate fertiliser designed to supply phosphorus, calcium, silicon, and trace elements to the soil. It's used for crop production, vegetables, fruit trees, pasture and hay production, soil re-mineralisation, and home gardens. It's also suitable for organic and regenerative farming systems.
Is NTS Soft Rock approved for organic farming?
Yes. NTS Soft Rock is registered as an Australian Certified Organic Farm Input (ACO), so it can be used in organic and regenerative farming systems.
How much phosphorus does it contain?
NTS Soft Rock contains total phosphorus of 8–9% on a dry basis. Most of this is citrate insoluble phosphorus (7.2–8.2%), which releases gradually throughout the growing season. There's also a small amount of citrate soluble and water soluble phosphorus for more immediate plant availability.
How should I store NTS Soft Rock?
Store the 25kg bag in a cool, dry place in its original packaging. Keep the bag sealed until you're ready to use it to prevent moisture absorption.
What application rate should I use?
Application rates depend on your use. For broadacre or cropping, the rate is 200kg to 1.5 tonne per hectare depending on your soil test and crop requirements. For home and garden use, approximately 1.25kg per 10m² is recommended for soil enrichment. Always follow the rate on the product label or contact TGRM on (07) 5482 1692 for specific advice.
Do you ship this product Australia-wide?
Yes, this product ships Australia-wide via road courier. It is too large or heavy for Australia Post. Call us on (07) 5482 1692 if you have any questions about delivery to your area.
Can I Click & Collect from Gympie?
Yes — Click & Collect is available from our store at 55 Tozer St, Gympie. Open Mon–Fri 8am–5pm and Sat 8am–12pm. Click & Collect is FREE on orders of $175 or more, or a flat $10 on orders under $175. Select Click & Collect at checkout and we will have your order ready.