
Catalogue · Humic and fulvic acids
HUMIC FULVIC+ALGAS
- Pack size
- 250 mL
- Reference
- Price list and pack sizes
- Status
- Availability on request
- Pack size
- 1 L
- Reference
- Price list and pack sizes
- Status
- Availability on request
- Pack size
- 5 L
- Reference
- Price list and pack sizes
- Status
- Availability on request
- Pack size
- 20 L
- Reference
- Price list and pack sizes
- Status
- Availability on request
- Pack size
- 1,000 L
- Reference
- Price list and pack sizes
- Status
- Transport on request · a thousand litres do not travel by courier
Suitable for use in organic farming · Ecocert attestation
View the attestationTotal potassium oxide (K2O) 5.00% w/w · foliar
FENORGANIC HUMIC FULVIC+ALGAS is a liquid fertiliser from the humic and fulvic acids family, with 12.00% w/w total humic extract and 5.00% w/w potassium oxide (K2O), and a density of 1.07 kg/L. It is applied mainly by fertigation, at 5-10 L/ha per application on fruit trees, vegetable and arable crops, splitting the input into a maximum of 10 L/ha at 10-15 day intervals; it can also be applied by the foliar route.
It can be used at any stage of the growing cycle, with emphasis on the periods of highest nutrient demand. It is listed in the Ecocert input attestation as suitable for use in organic farming. This official technical data sheet brings together its composition, the doses by use, the crops for which it is indicated, tank-mix compatibilities and the five pack sizes, from 250 mL to 1,000 L, 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 potassium oxide (K2O) 5.00% w/wView the full composition
ApplicationfoliarView the dosage table
Before applyingPrecautions and safety (9)
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Pack sizes
All pack sizes, with their price per unit.
5 pack sizes of HUMIC FULVIC+ALGAS, 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 |
|---|---|---|---|---|
| 250 mL | 52718 | €2.45 | €9.80/L | Availability on request |
| 1 L | 10042153 | €6.95 | €6.95/L | Availability on request |
| 5 L | 10042154 | €22.75 | €4.55/L | Availability on request |
| 20 L | 10042958 | €89.00 | €4.45/L | Availability on request |
| 1,000 L | 10042915 | €4,200.00 | €4.20/L | Transport 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 HUMIC FULVIC+ALGAS: precautions, nutrient contents, dosage by use, crops and compatibilities.
01 · SafetyPrecautions and safety
- Owing to its high pH, pre-dilute before pouring into the irrigation or spray tank; add an acidifier
- In fertigation, split the input: maximum 10 L/ha at 10-15 day intervals
- Stir/shake the container vigorously before use
- Keep at room temperature; store at 5-35 °C, avoid freezing, heat, direct sunlight and moisture
- P102 Keep out of reach of children; P270 Do not eat, drink or smoke when using this product
- PPE: gloves and safety goggles; adequate ventilation; do not breathe aerosols
- Do not contaminate water with the product or its container; do not pour directly down the drain
- May cause eye damage and skin irritation on prolonged exposure
- Read the label, keep locked up, wash contaminated clothing after use, dangerous if ingested, keep in the original container, do not store together with food, drink or medicines
02 · CompositionComposition and physical properties
| Component | Content |
|---|---|
| Total potassium oxide (K2O) | 5.00% w/w |
| Total humic extract | 12.00% w/w |
Physical properties
- Density
- 1.07 kg/L
03 · DosageDosage and directions for use
| Use | Dose |
|---|---|
| Fertigation, maintenance, fruit trees (olive, almond, pistachio, grapevine, citrus, apple, pear, blueberry, avocado, mango) | 5-10 L/ha/application |
| Fertigation, maintenance, vegetable crops (tomato, potato, cucumber, melon, courgette, cauliflower, onion, carrot, pepper) | 5-10 L/ha/application |
| Fertigation, maintenance, arable crops (cereals, lucerne, cotton, sugar beet, maize, sunflower) | 5-10 L/ha/application |
| Fertigation limit | split the input, maximum 10 L/ha, at 10-15 day intervals |
| Foliar or soil application (rice, sugar cane, tomato, grasses, pastures, cut flowers) | 5-10 L/ha according to crop requirements |
Application route
- Foliar and fertigation
- Both by foliar application and by irrigation
- By foliar or soil application
Application timing
- At any stage of the growing cycle; with emphasis on the periods of highest nutrient demand
- The dosage table only covers the maintenance regime
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, sunflower
- Rice, sugar cane, tomato, grasses, pastures, cut flowers
- All types of crops (by irrigation)
All crops, with the recommended products for each one.
05 · MixingCompatibility and incompatibilities
Do not mix with
- Alkaline-reaction products and mineral oils; do not mix with highly alkaline products
- Strong acids and powerful oxidisers; strongly oxidising materials
06 · 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.