Description
28-6-8 slow release blended fertiliser is a slow-release blend, formulated so nutrient becomes available gradually instead of flushing through after the first rain or irrigation. That steadies growth rather than spiking it, which suits long-season crops and situations where you cannot get back on the paddock to top up. On light or sandy soils, where a soluble dressing moves past the root zone quickly, the difference is largest. At 28% nitrogen against 6% phosphorus and 8% potassium, this is a nitrogen-dominant analysis: most of what you are buying and freighting is nitrogen. It is aimed at vegetative growth – canopy, tillering, leaf – where phosphorus and potassium are already adequate in the soil and a full ratio would be paying to deliver nutrient the crop does not need. Total nutrient content is 42 units. Supplied in bulk, bulka bags or bagged, minimum order 10 MT, delivered Australia-wide and shipped worldwide. A Certificate of Analysis and Safety Data Sheet are issued against the batch you receive.
28-6-8 Slow Release Blended Fertilizer Specification
A physical blend of straight granular products mixed to the declared ratio. The declared analysis and supply detail for 28-6-8 Slow Release Blended Fertilizer are set out below. A Certificate of Analysis is issued on request against the batch you actually receive.
| Product name | 28-6-8 Slow Release Blended Fertilizer |
| Product code | 28-6-8-SLOW-RELEASE-BLENDED-FERTILIZER |
| Product family | Blended Fertilizer |
| Declared analysis (N–P–K) | 28–6–8 |
| Total nitrogen (N) | 28% |
| Phosphorus (as P2O5) | 6% |
| Potassium (as K2O) | 8% |
| Total nutrient content | 42% (42 units) |
| Elemental phosphorus (P) | 2.6% |
| Elemental potassium (K) | 6.6% |
| Nutrient supplied per tonne | 280 kg N · 60 kg P2O5 · 80 kg K2O |
| Physical form | Granular blend |
| 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 28-6-8 Slow Release Blended Fertilizer
One tonne of 28-6-8 Slow Release Blended Fertilizer supplies 280 kg of nitrogen (N), 60 kg of phosphate (P2O5) and 80 kg of potash (K2O) — a total of 42 nutrient units per 100 kg.
Nutrient supplied at different rates
What one hectare actually receives at a given spreading rate of 28-6-8 Slow Release Blended Fertilizer. Use it to work back from a nutrient target to a product rate.
| Rate applied | Nitrogen (N) | Phosphate (P2O5) | Potash (K2O) |
|---|---|---|---|
| 50 kg/ha | 14 kg | 3 kg | 4 kg |
| 100 kg/ha | 28 kg | 6 kg | 8 kg |
| 150 kg/ha | 42 kg | 9 kg | 12 kg |
| 200 kg/ha | 56 kg | 12 kg | 16 kg |
| 250 kg/ha | 70 kg | 15 kg | 20 kg |
| 300 kg/ha | 84 kg | 18 kg | 24 kg |
Indicative conversion only. Set application rates against a current soil test and confirm them with a qualified agronomist.
Where 28-6-8 Slow Release Blended Fertilizer Is Used
Nitrogen-led growth with supporting nutrition
Nitrogen leads this analysis, so it targets vegetative growth, but the phosphorus and potassium alongside it mean the crop is not left short elsewhere while the canopy builds. Useful where a straight nitrogen product would create a secondary deficiency.
Packing and Quantities
28-6-8 Slow Release Blended Fertilizer 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 28-6-8 Slow Release Blended Fertilizer 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.
28-6-8 Slow Release Blended Fertilizer 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
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Enquire About 28-6-8 Slow Release Blended Fertilizer
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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