A balanced compound for chloride-sensitive and quality crops. Potassium comes from sulphate of potash, so the granule carries no chloride load and supplies sulphur.
SPECIFICATION
| N-P₂O₅-K₂O | 18-18-18 (54% total) |
|---|---|
| Water-soluble P | ≥85% of available P₂O₅ |
| Potassium source | Potassium sulphate (SOP) |
| Chloride | Low, ≤3% |
| Sulphur | 8–10% as S |
| Moisture | ≤1.5% |
| Granule size | 2–4 mm |
| Granule strength | ≥25 N, suitable for mechanical spreading |
| Packing | 25 kg / 50 kg / 1,000 kg |
Typical values. The contract and the lot COA govern; ranges vary by formulation and raw material lot.
A three-nutrient compound granulated from sulphate of potash, monoammonium phosphate and ammonium sulphate. Because the potassium source is sulphate rather than chloride, the product can be used on crops that react badly to chloride, and it supplies 8–10% sulphur, a nutrient that is often short in soils that no longer receive single superphosphate.
Phosphorus in this grade is 85% water-soluble, so a larger share is available in the season of application rather than being fixed in the soil. Nitrogen is present in ammonium form, which is taken up steadily rather than in a single flush. Sulphur drives protein and oil synthesis, which is why tobacco, oilseed and allium crops respond to it visibly.
APPLICATION
Convert kg/ha to kg/acre by dividing by 2.47. Local registration and recommendations take priority.
| Crop | Stage | Rate | Note |
|---|---|---|---|
| Tobacco | Basal + side-dress | 300–450 kg/ha | Chloride affects leaf burn quality |
| Potato | Basal | 500–800 kg/ha | Sulphate supports starch accumulation |
| Citrus / fruit trees | Pre-flush and sizing | 0.5–1.5 kg/tree | Avoids chloride accumulation |
| Cucurbits | Basal at transplanting | 450–700 kg/ha | Young plants are chloride-sensitive |
| Garlic / onion | Basal + top-dress | 400–600 kg/ha | Sulphur drives pungency and bulb size |
ADVANTAGES
FAQ
Yes. Chloride affects leaf burn quality, so tobacco is the crop where the sulphate premium pays back most reliably.
The potassium source. Sulphate of potash costs more but carries no chloride and adds sulphur. Use it for sensitive crops, not for rice or corn.
Broadcast or band application is the intended use. For drip, use the water-soluble 17-17-17 grade instead.
One 20'GP container, 25–27 tonnes depending on bag size. Mixed grades are possible.
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