
Catalogue · Nutrient deficiency correctors and specific nutrients
BORO
- 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 attestationNutrient deficiency correctors and specific nutrients · application foliar
FENORGANIC BORO is a liquid boron deficiency corrector, with 20.93% w/w total boron oxide (B2O3) on a single-cell freshwater algae solution (25.00% w/w). It is applied by the foliar route and by fertigation: for maintenance, 3-6 L per 1,000 L of water on fruit trees and 3-4 L per 1,000 L on vegetable and arable crops; in severe deficiency, by irrigation, up to 4 applications of 6 to 8 L/ha on fruit trees and 1-2 L/ha on vegetable and arable crops.
The indicated timings are the vegetative stage, post-flowering and the stages of highest activity, such as fruit set and ripening, in generally weekly applications. It is indicated for olive, fruit trees, vegetable and arable crops, it forms part of our olive grove fertilisation programme and it is listed in the Ecocert input attestation as suitable for use in organic farming. Five pack sizes, from 250 mL to 1,000 L.
Official FenOrganic technical data sheet · Technical content reviewed: November 4, 2026 · Price list and pack sizes: septiembre de 2026
CompositionTotal boron oxide (B2O3) 20.93% w/wView the full composition
ApplicationfoliarView the dosage table
Before applyingPrecautions and safety (5)
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Pack sizes
All pack sizes, with their price per unit.
5 pack sizes of BORO, 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 | 52710 | €3.95 | €15.80/L | Availability on request |
| 1 L | 10043009 | €12.99 | €12.99/L | Availability on request |
| 5 L | 10043010 | €49.09 | €9.82/L | Availability on request |
| 20 L | 10043011 | €190.58 | €9.53/L | Availability on request |
| 1,000 L | 10043016 | €8,951.25 | €8.95/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 BORO: precautions, nutrient contents, dosage by use, crops and compatibilities.
01 · SafetyPrecautions and safety
- P102 (keep out of reach of children) and P270 (do not eat, drink or smoke when using this product); not classified under Regulation (EC) No 1272/2008
- PPE: safety goggles and gloves; store at 5-35 °C, avoid freezing, heat, direct sunlight and moisture; keep in the original container; do not contaminate water or pour down the drain
- Pre-dilute before pouring into the tank; shake vigorously before use; use under technical advice; keep at room temperature in a cool, dry place; physical characteristics may vary owing to the organic nature of the product
- Do not change the dose without authorisation from the technical department; pre-dissolve before adding to the tank; do not apply at high temperatures
- The margin between the adequate and the toxic level of boron is very narrow; confirm the deficiency by leaf analysis, with technical supervision, and check the boron content of the irrigation water
02 · CompositionComposition and physical properties
| Component | Content |
|---|---|
| Total boron oxide (B2O3) | 20.93% w/w · 25.53% w/v |
| Single-cell freshwater algae solution | 25.00% w/w · 30.50% w/v |
03 · DosageDosage and directions for use
| Use | Dose |
|---|---|
| Foliar, fruit trees (maintenance) | 3-6 L/1,000 L per application |
| Foliar, vegetable and arable crops (maintenance) | 3-4 L/1,000 L per application |
| Fertigation, severe deficiency, fruit trees | up to 4 applications (6 to 8 L/ha) |
| Fertigation, severe deficiency, vegetable and arable crops | up to 4 applications (1-2 L/ha) |
| Fertigation (general note) | split, maximum 3 L/ha, at 10-15 day intervals; pre-dilute before pouring into the tank |
| Olive grove in production, 2nd treatment of the annual programme | 2 litres per 1,000 L tank, mixed with UNIVERSAL 3 L + PK 20-20 1 L + NITRÓGENO 16 2 kg |
Application route
- Foliar and root application
- By irrigation and foliar application
- Foliar and by irrigation
- In the foliar tank mix of the olive grove programme
Application timing
- Vegetative stage, post-flowering and stages of highest vegetative activity (fruit set, ripening)
- Generally weekly applications, between 2 and 4 depending on the crop
- Fertigation at 10-15 day intervals
- Olive grove in production: 2nd treatment of the annual programme, approximately one month after the first (the 1st is late February/early March)
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

- Olive
- Almond, pistachio, grapevine, citrus, apple, pear, blueberry, avocado, mango (fruit trees)
- Tomato, potato, cucumber, melon, courgette, cauliflower, onion, carrot, pepper (vegetable crops)
- Cereals, lucerne, cotton, sugar beet, maize, sunflower (arable crops)
- Vegetable crops, fruit trees, cereals and olive
This product is part of our olive grove fertilisation programme, treatment by treatment. All crops, with the recommended products for each one.
05 · MixingCompatibility and incompatibilities
Compatible with
- Tank mix with FENORGANIC UNIVERSAL, PK 20-20 and NITRÓGENO 16 (olive grove, 2nd treatment)
Do not mix with
- Incompatible 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.