Catalogue · Soluble solid NPK fertilisers
NPK 6-3-18
- Pack size
- 2 kg
- Reference
- Price list and pack sizes
- Status
- Availability on request
- Pack size
- 5 kg
- Reference
- Price list and pack sizes
- Status
- Availability on request
- Pack size
- 10 kg
- Reference
- Price list and pack sizes
- Status
- Availability on request
- Pack size
- 20 kg
- Reference
- Price list and pack sizes
- Status
- Availability on request
Suitable for use in organic farming · Ecocert attestation
View the attestationTotal nitrogen (N) 6.00% w/w · foliar
FENORGANIC NPK 6-3-18 is a solid NPK fertiliser in powder form, brown, fully soluble, with 6.00% w/w nitrogen (N), 3.00% w/w phosphorus (P2O5) and 18.00% w/w potassium (K2O), plus 30% total amino acids. It is the NPK in the family with the most potassium. It is applied by the foliar route, 150 g per 100 L of water on fruit trees and 200 g per 100 L on vegetable crops, in 3-4 applications, and by fertigation, 2 kg/ha on fruit trees and 3 kg/ha on vegetable crops per application.
The indicated timings are post-transplant, growth, pre-flowering, fruit set and development, at any stage of the cycle. It is indicated for fruit trees, vegetable and arable crops, it is listed in the Ecocert input attestation as suitable for use in organic farming and it is supplied in four pack sizes, from 2 kg to 20 kg, with RRP incl. Spanish VAT.
Official FenOrganic technical data sheet · Technical content reviewed: November 4, 2026 · Price list and pack sizes: septiembre de 2026
CompositionTotal nitrogen (N) 6.00% w/wView the full composition
ApplicationfoliarView the dosage table
Before applyingPrecautions and safety (4)
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Pack sizes
All pack sizes, with their price per unit.
4 pack sizes of NPK 6-3-18, each with its reference. Final price · Spanish VAT included. Price list and pack sizes updated: September 2026.
| Pack size | Reference | Final RRP | Price per unit | Status |
|---|---|---|---|---|
| 2 kg | 10045498 | €11.55 | €5.78/kg | Availability on request |
| 5 kg | 10045560 | €26.45 | €5.29/kg | Availability on request |
| 10 kg | 10045497 | €48.18 | €4.82/kg | Availability on request |
| 20 kg | 10044325 | €90.90 | €4.55/kg | Availability on request |
DeliveryDelivery price · 21 % VAT included
Delivery rates of the online shop (Spain and Portugal), by zone and by weight band; for other European countries, request a quotation. The amounts are final: 21 % vat included.
In the online shop, transport is confirmed according to the dispatch weight and the destination before payment. The table below is the rate by zone and weight band; the amount for your order is set when you confirm it, and nothing is charged beforehand.
Mainland Spain
| Band | Price |
|---|---|
| Up to 5 kg | €7.95 |
| Over 5 up to 10 kg | €8.95 |
| Over 10 up to 20 kg | €12.95 |
| Over 20 up to 30 kg | €20.95 |
| Over 30 up to 40 kg | €26.95 |
| Over 40 up to 60 kg | €38.95 |
| Over 60 up to 80 kg | €50.95 |
| Over 80 up to 100 kg | €62.95 |
Portugal
| Band | Price |
|---|---|
| Up to 5 kg | €19.95 |
| Over 5 up to 10 kg | €27.95 |
| Over 10 up to 20 kg | €43.95 |
| Over 20 up to 30 kg | €59.95 |
| Over 30 up to 40 kg | €76.95 |
| Over 40 up to 60 kg | €108.95 |
| Over 60 up to 80 kg | €140.95 |
| Over 80 up to 100 kg | €173.95 |
Majorca, Ibiza and Minorca
| Band | Price |
|---|---|
| Up to 5 kg | €16.95 |
| Over 5 up to 10 kg | €24.95 |
| Over 10 up to 20 kg | €37.95 |
| Over 20 up to 30 kg | €54.95 |
| Over 30 up to 40 kg | €70.95 |
| Over 40 up to 60 kg | €105.95 |
| Over 60 up to 80 kg | €140.95 |
| Over 80 up to 100 kg | €176.95 |
Formentera
| Band | Price |
|---|---|
| Up to 5 kg | €29.95 |
| Over 5 up to 10 kg | €36.95 |
| Over 10 up to 20 kg | €55.95 |
| Over 20 up to 30 kg | €74.95 |
| Over 30 up to 40 kg | €93.95 |
| Over 40 up to 60 kg | €131.95 |
| Over 60 up to 80 kg | €169.95 |
| Over 80 up to 100 kg | €207.95 |
Above 100 kg, delivery is on request: palletised delivery is assessed according to order value, volume and destination.
Technical data sheet
Composition, dosage and directions for use.
What you need in order to apply NPK 6-3-18: precautions, nutrient contents, dosage by use, crops and compatibilities.
01 · SafetyPrecautions and safety
- Use under technical advice. Keep at room temperature
- Stable under normal ambient temperature conditions
- In fertigation, do not exceed 10 kg/ha per application, at 10-15 day intervals
- The physical characteristics and appearance of the product may vary owing to the organic nature of the product
02 · CompositionComposition and physical properties
| Component | Content |
|---|---|
| Total nitrogen (N) | 6.00% w/w |
| Total phosphorus (P2O5) | 3.00% w/w |
| Total potassium (K2O) | 18.00% w/w |
| Total amino acids | 30% |
Physical properties
- Physical state
- Solid powder, brown, 100% soluble
Compared with the other NPKs in the family
The three nutrient contents that give each fertiliser its name, exactly as its technical data sheet publishes them, with the application route and the pack sizes. Whatever a data sheet does not publish is shown as “—”.
| Product | N | P2O5 | K2O | Routes | Pack sizes |
|---|---|---|---|---|---|
| FENORGANIC NPK 7-7-7 | — | — | — | foliar | 4 |
| FENORGANIC NPK 9-4-4 | — | 4.00% w/w | 4.00% w/w | foliar | 1 |
| FENORGANIC NPK 6-3-18 (this technical data sheet) | — | 3.00% w/w | 18.00% w/w | foliar | 4 |
03 · DosageDosage and directions for use
| Use | Dose |
|---|---|
| Fruit trees — foliar (maintenance) | 150 g/100 L; 3-4 applications |
| Fruit trees — fertigation (maintenance) | 2 kg/ha per application |
| Vegetable crops — foliar (maintenance) | 200 g/100 L; 3-4 applications |
| Vegetable crops — fertigation (maintenance) | 3 kg/ha per application |
| Arable crops — foliar (maintenance) | 100-200 g/100 L; 3-4 applications |
| Arable crops — fertigation (maintenance) | 1-3 kg/ha per application |
| Fertigation — limit per application | split the input, maximum 10 kg/ha, at 10-15 day intervals |
| Domestic single dose (Home and Garden) | 50 g in 16 litres (16 litres – 50 g) |
Application route
- Foliar
- Fertigation
- Can be used in any irrigation system, flood, drip, foliar, etc.
Application timing
- Critical moments of development: post-transplant, growth, pre-flowering, fruit set and development
- At any stage of the growing cycle, foliar or irrigation
- Fruit swelling and ripening
- Growth stage: gives vigour and improves the response to abiotic stress
Doses are indicative and depend on the crop, the phenological stage and the level of deficiency. For your specific case, please consult our technical department.
04 · CropsCrops
- Fruit trees: olive, almond, pistachio, grapevine, citrus, apple, pear, blueberry, almond, avocado, mango
- Vegetable crops: tomato, potato, cucumber, melon, courgette, cauliflower, onion, carrot, pepper
- Arable crops: cereals, lucerne, cotton, sugar beet, maize
All crops, with the recommended products for each one.
05 · Organic suitabilitySuitability for organic farming
“suitable for use in organic farming”
It is listed in the annex to the ECOCERT S.A.S input attestation Nº 245895/29/290920251037 (“UE - Atestación de Insumos” programme, Reglamentos (UE) n°2018/848 y n°2021/1165), valid until 31 de marzo de 2027.