This DAP Fertilizer / Diammonium Phosphate 18-46-0 buying guide helps distributors and blenders buy the world’s most used phosphate fertilizer with confidence. It explains the specification, how DAP compares with MAP, packaging and shipping, and the market forces behind every price offer.
DAP Fertilizer / Diammonium Phosphate 18-46-0 buying guide: Key Facts
| Product | DAP Fertilizer / Diammonium Phosphate |
|---|---|
| CAS number | 7783-28-0 |
| Grade | 18-46-0 (N-P2O5-K2O) |
| List price | Quoted per order |
| Category | Fertilizers |
What 18-46-0 Means and Why Farmers Use DAP
Diammonium phosphate ((NH4)2HPO4) is sold as 18-46-0: 18% nitrogen and 46% phosphate (as P2O5), with no potash. That combined 64% nutrient content makes it one of the most concentrated and economical ways to supply phosphorus.
Farmers apply DAP at or before planting as a starter fertilizer for cereals, maize, cotton, oilseeds and vegetables, because young roots need phosphorus early. Blenders use it as the phosphate base for many NPK grades.
Identity data is available on PubChem, and the FAO Soils Portal provides background on soil fertility and nutrient management.
DAP Fertilizer / Diammonium Phosphate Specifications
Standard DAP Fertilizer / Diammonium Phosphate specifications in international trade:
| Parameter | Typical contract value |
|---|---|
| Total nitrogen (N) | 18% minimum |
| Available phosphate (P2O5) | 46% minimum |
| Moisture | About 2.5% maximum |
| Granule size | About 2–4 mm for most of the product |
| Colour | Black, brown, grey or yellow depending on phosphate rock |
Colour reflects the phosphate rock and process, not quality; buy on nutrient content and granule size. Confirm the values and the analysis method on the COA for each lot.
DAP Fertilizer / Diammonium Phosphate vs MAP
Comparing DAP Fertilizer / Diammonium Phosphate vs MAP (monoammonium phosphate, 11-52-0) is a common buying decision:
| DAP 18-46-0 | MAP 11-52-0 | |
|---|---|---|
| Nitrogen | 18% | 11% |
| Phosphate | 46% | 52% |
| Effect near the granule | Temporarily alkaline | Acidic |
| Typical choice | Acidic to neutral soils, starter fertilizer | Alkaline or calcareous soils, blending |
Where only phosphate is needed at lower cost, single superphosphate is another option, though at much lower concentration.
How to Buy DAP Fertilizer / Diammonium Phosphate in Bulk
- Fix the grade as 18-46-0 with the granule size range your customers need.
- Choose packaging: 50 kg PP woven bags for retail distribution, jumbo bags for blenders, or loose bulk for vessel shipments.
- Check import rules: many countries require fertilizer registration, heavy-metal limits (for example cadmium) or pre-shipment inspection.
- Agree documents: COA, inspection certificate if required, certificate of origin, phytosanitary or fumigation papers where requested, packing list and bill of lading.
- Time the order so stock arrives before the planting season, not during it.
To buy DAP Fertilizer / Diammonium Phosphate in bulk, send tonnage, packaging and destination through our quote form. Read our guide to reducing supply risk for planning seasonal purchases.
DAP Fertilizer / Diammonium Phosphate Price Drivers
The main DAP Fertilizer / Diammonium Phosphate price drivers are its raw materials and the policies of large exporters:
- Phosphate rock and sulphur, used to make phosphoric acid;
- Ammonia, linked to natural gas prices;
- Export restrictions or quotas in major producing countries;
- Seasonal demand from large importing regions;
- Freight, especially for bulk vessels.
Because prices can change quickly, compare offers on the same Incoterm and confirm within the validity period. The International Fertilizer Association publishes market outlooks. Browse our full range of fertilizers, including urea for nitrogen top-dressing.
Send grade, quantity and destination port for a written quotation.
Related Products Buyers Order With DAP Fertilizer / Diammonium Phosphate
Frequently asked questions
What does 18-46-0 mean on DAP?
It means 18% nitrogen, 46% phosphate as P2O5 and 0% potash.
Is DAP or MAP better?
DAP has more nitrogen and is common on acidic to neutral soils. MAP has more phosphate and is often preferred on alkaline soils and for blending.
Why is DAP sold in different colours?
Colour comes from the phosphate rock and process used. It does not indicate quality; buy on nutrient content and granule size.
How is DAP packed for export?
Usually in 50 kg PP woven bags or jumbo bags in containers, or as loose bulk in vessels for large importers.
Need a bulk quotation for DAP Fertilizer / Diammonium Phosphate? Send your requirements to Anflo or email sales@anflointerchem.shop.
