Description
NPK 15-5-27 is a compound fertiliser: all three major nutrients manufactured into a single product at a fixed ratio, rather than blended from separates. You buy one analysis and spread it once. That is the convenience, and it is also the limit – a compound cannot be adjusted, so it suits a soil whose test the ratio already fits. Where the test points somewhere else, blending to that ratio wastes less. Potassium leads at 27%, with 15% nitrogen and 5% phosphorus. Potassium governs water regulation, stem and stalk strength, disease tolerance and – in fruiting and root crops – size, firmness, sugar and shelf life. A potassium-dominant analysis is a fruit-fill and finishing product, and it is also the correction for the potassium depletion that follows repeated high-removal crops. 47 units in total. Available in bulk, bulka bags or bagged from a minimum of 10 MT, delivered across Australia and exported worldwide. Every batch ships with its own Certificate of Analysis and Safety Data Sheet.
NPK 15-5-27 Specification
Tower-granulated compound. Every granule carries the full declared ratio, so the analysis cannot separate in transit or spreading. The declared analysis and supply detail for NPK 15-5-27 are set out below. A Certificate of Analysis is issued on request against the batch you actually receive.
| Product name | NPK 15-5-27 |
| Product code | NPK-15-5-27 |
| Product family | High Tower Compound Fertilizer |
| Declared analysis (N–P–K) | 15–5–27 |
| Total nitrogen (N) | 15% |
| Phosphorus (as P2O5) | 5% |
| Potassium (as K2O) | 27% |
| Total nutrient content | 47% (47 units) |
| Elemental phosphorus (P) | 2.2% |
| Elemental potassium (K) | 22.4% |
| Nutrient supplied per tonne | 150 kg N · 50 kg P2O5 · 270 kg K2O |
| Physical form | Granular |
| Water solubility | Soil-applied granular product |
| Packaging | Bulk, one-tonne bulka bag or bagged — confirmed on your quotation |
| Minimum order | 10 – 25 MT, depending on the product and the destination — confirmed on your quotation |
| Availability | Australia-wide delivery; international shipping on request |
| Certificate of Analysis | Issued on request against your delivered batch |
| Safety Data Sheet | Available on request — request it before handling |
Nutrient Content of NPK 15-5-27
One tonne of NPK 15-5-27 supplies 150 kg of nitrogen (N), 50 kg of phosphate (P2O5) and 270 kg of potash (K2O) — a total of 47 nutrient units per 100 kg.
Nutrient supplied at different rates
What one hectare actually receives at a given spreading rate of NPK 15-5-27. Use it to work back from a nutrient target to a product rate.
| Rate applied | Nitrogen (N) | Phosphate (P2O5) | Potash (K2O) |
|---|---|---|---|
| 50 kg/ha | 7.5 kg | 2.5 kg | 13.5 kg |
| 100 kg/ha | 15 kg | 5 kg | 27 kg |
| 150 kg/ha | 22.5 kg | 7.5 kg | 40.5 kg |
| 200 kg/ha | 30 kg | 10 kg | 54 kg |
| 250 kg/ha | 37.5 kg | 12.5 kg | 67.5 kg |
| 300 kg/ha | 45 kg | 15 kg | 81 kg |
Indicative conversion only. Set application rates against a current soil test and confirm them with a qualified agronomist.
Where NPK 15-5-27 Is Used
Quality, fill and finishing
Potassium leads this analysis, making it a finishing and quality product rather than a growth-push product. Typical use is the reproductive phase — fruit fill, tuber bulking, grain fill — and in crops where potassium removal at harvest is high.
Packing and Quantities
NPK 15-5-27 is supplied in bulk, in 1,000 kg and 500 kg bulka bags, and in 50 kg and 25 kg bags. Minimum order is 10–25 MT, depending on the product and the destination. Packing formats, 20ft container loading figures, and bagging and marking are set out in full on our Delivery & Freight page.
Handling and Storage
Store NPK 15-5-27 dry, off the ground and out of direct weather. Nitrogen and ammonium-based fertilisers draw moisture from the air and will cake if left exposed — full handling and storage guidance is on the Delivery & Freight page.
NPK 15-5-27 Data Sheet
A Certificate of Analysis for your delivered batch and the Safety Data Sheet are both available on request. The analysis in the data sheet is the nominal specification; where a Certificate of Analysis is issued for a batch, that certificate governs.
Related Reading
- High Tower Compound Fertiliser ExplainedWhat high tower compound fertiliser is, how tower granulation differs from other methods, and…
- NPK Compound Fertiliser Suppliers in AustraliaBuying NPK compound fertiliser in Australia – choosing an analysis, comparing suppliers…
- Compound vs Blended Fertiliser: Which Should You Order?Compound and blended fertiliser compared – granule uniformity, segregation risk…
Enquire About NPK 15-5-27
We do not sell online and take no payment through this website. Tell us the tonnage, the packing format and the delivery address, and we will send you a written quotation covering product and freight.
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