NPK fertilizers
NPK 21-16-8 Fertilizer — Bulk Price Quote
Spring top-dress grade · 45% total nutrients · MOQ 1,000 MT FOB/CFR/CIF
Key parameters — NPK 21-16-8
Full specification — NPK 21-16-8
| Nitrogen (N) | 21% min |
| Phosphorus (P2O5) | 16% min |
| Potassium (K2O) | 8% min |
| Total nutrients (N+P2O5+K2O) | 45% min |
| Moisture | 1.5% max |
| Granule size | 2–4 mm (90% min on sieve) |
| HS code | 3105.20 |
Product overview — NPK 21-16-8
Wheat traders and cotton cooperatives request NPK 21-16-8 bulk price when spring top-dress demands high nitrogen with supporting phosphorus and a modest potassium fraction. This nitrogen-forward grade delivers 45% total nutrients with 21% N, 16% P2O5 and 8% K2O — matching the tillering and squaring window on large arable units where simultaneous P and K correction is needed alongside the spring N boost.
Importers in Turkey, Central Asia, India and the Black Sea region stock 21-16-8 for winter wheat at GS 25–30 stem extension and cotton at first square formation. Rice programmes apply at panicle initiation when the 21% N supports spikelet formation while P and K aid grain filling. The 2–4 mm granule spreads on standard twin-disc spreader settings at 18–24 m bout width.
Request a price quote for vessel parcels from 1,000 MT with mill COA. Where soil P and K are adequate, straight urea is cheaper per kg N — but 21-16-8 suits fields needing multi-nutrient correction in a single spring pass when application windows are narrow.
Full product details
Loading ports & logistics — NPK 21-16-8
Spring cereal and cotton top-dress grade — contract MOQ 1,000 MT ships as 50 kg PP bags or 1,000 kg FIBC in containers to Mediterranean and Levant importers without bulk discharge. Bagged programmes suit cooperatives stocking ahead of the spring application window where port-side silos are absent.
Typical bulk NPK 21-16-8 parcels run 3,000–15,000 MT on handysize bulk carriers from Novorossiysk, Baltic corridor and Red Sea transhipment hubs. CFR/CIF to Turkish cereal belts, Central Asian wheat corridors and Indian cotton regions.
Lead time 14–28 days from contract to laycan, subject to granulation-line scheduling and berth availability.
Packaging & documentation — NPK 21-16-8
Bulk hold shipment with moisture barrier tarps, or 50 kg bags palletised for retail repack, or 1,000 kg FIBC for cooperative direct purchase. Each lot includes mill certificate of analysis, commercial invoice, packing list, bill of lading and certificate of origin. SGS or Bureau Veritas inspection at loading available for LC-backed contracts.
Buyer segments & crop programmes
Winter wheat receives 150–250 kg/ha at GS 25–30 stem extension — the N-forward ratio supports tiller survival. Cotton gets 200–300 kg/ha at first square formation for boll set. Rice programmes apply at panicle initiation to moist soil, incorporating where possible in flooded systems.
FAQ — NPK 21-16-8
Should 21-16-8 replace urea top-dress on wheat?
Where soil P and K are adequate, straight urea is cheaper per kg N. 21-16-8 suits fields needing simultaneous P and K correction alongside the spring N boost.
Is 21-16-8 suitable for rice?
Yes, at panicle initiation in rice — the 21% N supports spikelet formation while P and K aid grain filling. Apply to moist soil and incorporate where possible in flooded systems.
What spreader settings suit 21-16-8 granules?
Standard 2–4 mm NPK settings on twin-disc spreaders. Check overlap pattern at 18–24 m bout width; granule density is typical for compound NPK.
Related products — NPK 21-16-8
- NPK 24-8-7 — maximum N at 24% for single-pass cereal programmes
- NPK 20-10-10 — N-forward planting grade for maize and sorghum
- NPK 20-10-5 — low-K variant for K-sufficient soils
- Urea 46% — straight nitrogen where P and K are adequate
- DAP 18-46-0 — phosphorus starter at autumn planting
