NPK fertilizer supplies the three main plant nutrients in one product: nitrogen (N), phosphorus (P) and potassium (K). Agromer supplies NPK fertilizer in bulk to importers, distributors and large buyers. We are the distributor for a major European NPK producer, which means we can offer standard grades and custom formulas made to your crop and soil needs.
This page explains NPK grades, what drives the price per ton, and what to send us for an accurate offer.
What is NPK fertilizer?
NPK is a compound or blended fertilizer containing nitrogen, phosphorus and potassium. The three numbers on the bag show the percentage of each nutrient. A 15-15-15 contains 15% N, 15% P2O5 and 15% K2O.
- Nitrogen drives leaf and stem growth.
- Phosphorus supports roots, early growth and flowering.
- Potassium improves strength, stress tolerance and the quality of fruit and grain.
Using one NPK product instead of three separate fertilizers saves handling and gives an even spread of all three nutrients. For a fuller explanation, see NPK ratios.
Common NPK grades
| Grade | Profile | Typical use |
|---|---|---|
| 15-15-15 | Balanced | General-purpose basal dose for many field and vegetable crops |
| 20-10-10 | Nitrogen-rich | Leafy crops, grassland, early growth |
| 12-32-16 | Phosphorus-rich | Sowing and planting, root establishment |
| 8-20-30 | Potassium-rich | Fruit, tubers, sugarcane and other potassium-hungry crops |
| Custom formula | Made to order | Matched to a soil test, crop or national standard |
Many NPK products can also include sulphur, magnesium or micronutrients such as zinc and boron.
Compound vs blended NPK
- Compound (complex) NPK is made by chemical reaction or granulation, so every granule has the same analysis. It spreads evenly and does not separate in handling.
- Blended NPK (bulk blend) is a mix of separate granules, such as urea, DAP and MOP. It is flexible and often cheaper, but granules of different sizes can separate.
Read more in our complex fertilizer guide.
What drives the NPK price per ton?
There is no single world price for NPK, because every grade has a different nutrient content. NPK prices follow the cost of the nutrients inside it. The World Bank tracks benchmark prices for the main raw materials:
| Benchmark | 2025 average | September 2026 |
|---|---|---|
| Urea (nitrogen), FOB Middle East | $422.70 | $407.50 |
| DAP (phosphorus plus nitrogen) | – | $800.60 |
| Potassium chloride (potassium), CFR Brazil | $347.50 | $367.50 |
Other factors that affect your price:
- Grade and nutrient content. Higher-analysis grades cost more per ton but can cost less per kg of nutrient.
- Energy and gas prices. Natural gas is the main input for nitrogen.
- Quantity and contract length. Larger, regular orders get better terms.
- Packaging. Bulk, 1-tonne big bags or 50 kg bags.
- Freight and destination. Shipping, port charges and import duties.
- Season. Prices often rise ahead of the main planting season.
For current nitrogen prices, see what urea costs today.
How to choose the right NPK
- Test the soil. It shows which nutrients are short and which you can reduce.
- Match the crop. Leafy crops need more nitrogen. Fruit and root crops often need more potassium.
- Match the growth stage. Phosphorus-rich grades suit sowing. Nitrogen top-ups come later, often as urea.
- Compare cost per kg of nutrient, not just the price per ton.
- Check local rules. Many countries set registration standards for fertilizer grades.
For crop-specific advice, see the best fertilizer for agriculture and types of fertilizers.
Who buys NPK in bulk?
Our NPK customers are businesses that buy by the shipment, not by the bag:
- Fertilizer importers and distributors
- Agricultural cooperatives
- Plantations and large farms
- Agro-retail chains
- Government and tender buyers
Requesting an NPK offer
A complete enquiry gets a faster and more accurate offer. Please include:
- Grade, or the target analysis for a custom formula
- Quantity per shipment and per year
- Packaging: bulk, big bags or 50 kg bags
- Destination port and delivery terms, such as FOB, CFR or CIF
- Import requirements, such as registration, labelling or inspection
Standard shipping documents include a commercial invoice, packing list, certificate of origin, bill of lading and a certificate of analysis. Independent inspection at loading is recommended. See also how to assess fertilizer suppliers and our full fertilizer range.
Frequently asked questions
What does NPK stand for?
Nitrogen (N), phosphorus (P) and potassium (K), the three main nutrients plants need. The numbers on the bag show the percentage of each.
What is the price of NPK fertilizer per ton?
It depends on the grade, quantity, packaging and destination. NPK prices follow the costs of urea, phosphate and potash, so we quote each enquiry against the current market.
Which NPK grade is best?
There is no single best grade. 15-15-15 is a common balanced choice. Your soil test and crop decide which grade fits.
Can you supply a custom NPK formula?
Yes. Through our partner producer we can offer custom formulas, subject to quantity and production schedule.
What is the difference between NPK and urea?
Urea supplies only nitrogen (46-0-0). NPK supplies nitrogen, phosphorus and potassium together. Many farmers use NPK as the basal dose and urea as a later top-up.
Is compound NPK better than a blend?
Compound NPK gives the same analysis in every granule and spreads more evenly. Blends are more flexible and often cheaper. Both work when applied correctly.