NK fertilizers
NK 17-28 Fertilizer — Bulk Price Per Ton
Potassium-heavy quality-phase compound — request a bulk fertilizer price quote per ton from 1,000 MT on FOB Black Sea/MENA, CFR or CIF
Key parameters — NK 17-28
- FOB
- CFR
- CIF
- Agriculture
- Blending
Full specification — NK 17-28
| Total nitrogen (N) | 17.0% min |
| Potassium (K2O) | 28.0% min |
| Total nutrients | 45.0% min |
| Moisture | 1.5% max |
| Granule size | 2–4 mm |
| Form | Granular compound |
| HS code | 3105.20 |
Product overview — NK 17-28
When crops enter yield formation and potassium demand outpaces nitrogen, buyers request NK 17-28 price per ton for bulk import. At 45% total nutrients with 17% N and 28% K2O, this grade matches the nutrient removal ratio in sugar beet, grape and potato harvest without excess N that would delay ripening.
Sugar beet receives 150–200 kg/ha during root sugar accumulation. Wine grapes get 100–150 kg/ha at veraison for berry sugar and anthocyanin development. Banana bunch filling uses 150–200 g/mat/month when fingers are elongating.
Standard grade uses MOP as K source and contains chloride — specify SOP-based NK for chloride-sensitive crops like potato seed and tobacco. HS code 3105.20. From 1,000 MT with mill COA.
Full product details
Loading ports & logistics — NK 17-28
Bulk NK 17-28 loads in vessel holds from 3,000 MT minimum on geared bulk carriers up to 25,000 MT handymax parcels. FOB loading at Novorossiysk and Baltic corridor terminals; discharge to sugar beet regions, wine-grape belts and banana quality programmes.
Loading rates reach 4,000–8,000 MT per day at dedicated fertilizer berths. Humid quality-phase transit demands moisture control below 1.5% — covered estate or cooperative storage essential for bulk lots discharged before veraison or root sugar accumulation windows.
Contract lead time typically 10–20 days from payment instrument confirmation to first laycan window. Sugar beet and wine-grape buyers often nominate 17-28 bulk for quality-phase laycan windows before veraison and root sugar accumulation.
Packaging & documentation — NK 17-28
Each lot ships with a mill certificate of analysis. Standard document set: commercial invoice, packing list (bagged lots), bill of lading, certificate of origin and phytosanitary certificate where required. Third-party inspection at loading can be arranged on buyer request.
Payment terms: irrevocable LC at sight or CAD for first-time buyers; established accounts may negotiate open-account structures.
FAQ — NK 17-28
Why is K nearly double N in this formula?
During quality phase, K uptake rate exceeds N in most fruit and root crops. NK 17-28 matches the nutrient removal ratio in sugar beet harvest (approximately 1.5:1 K:N).
Can NK 17-28 be used on banana?
Yes, during bunch filling stage. Apply when fingers are elongating. The high K improves finger length and reduces premature ripening.
Does NK 17-28 contain chloride?
Standard grade uses MOP as K source (contains chloride). Specify SOP-based NK for chloride-sensitive crops like potato and tobacco.
Related products — NK 17-28
- NK 15-15 — balanced NK at 30% nutrients
- NK 21-21 — equal high-analysis NK at 42%
- SOP — chloride-free potash for sensitive crops
- Urea 46% — nitrogen for top-dress and NPK blending
- DAP 18-46-0 — high-phosphate starter for planting programmes
- MOP 60% K2O — straight potash for custom blending
