
Organic fertilization for grapevine
The vineyard is a crop with high potassium demand and balanced nutritional needs throughout the cycle. Organic fertilization in grapevine aims to improve berry ripening, Brix degrees, anthocyanin accumulation and must quality, respecting the terroir.
Recommended products for grapevine
All certified CE 2018/848 + NOP USDA.

NITROTECH 2.5
Fast-absorption organic nitrogen to boost shoot growth in spring.
NPK 2.5-0-0 · 1 L, 5 L, 10 L

PHOSMAX 20
Assimilable phosphorus to improve flowering and berry set. Stimulates root development.
NPK 0-20-0 · 1 L, 5 L, 10 L

K-FLOW 20
Fluid potassium from organic sources, not muriate of potash. Boosts sugar accumulation (BRIX), anthocyanins and uniform ripening.
NPK 0-0-20 · 10 L, 20 L, 1000 L

PK-FLOW 20
Balanced PK 20-20 for bulking phase. Improves berry size and oenological potential.
NPK 0-20-20 · 1 L, 5 L, 10 L

CALCIUM 40
Micronized calcium to strengthen tissues and prevent wood diseases.
NPK 0-0-0+Ca · 1 L, 5 L, 10 L

BOOST UNIVERSAL
Unicellular algae biostimulant. Improves drought and heat stress tolerance frequent in summer.
NPK 0-0-1 · 1 L, 5 L, 10 L
The programme, product by product
These must not share a tank (3)
- PHOSMAX 20 + K-FLOW 20
- PHOSMAX 20 + CALCIUM 40
- PK-FLOW 20 + CALCIUM 40
Chloride measured by ion chromatography to UNE-EN 10304-1 at an ENAC-accredited laboratory. Mixing verdicts are derived from each product's composition and pH, not from a compatibility trial: always run the jar test with your own field water before loading.
See the full compatibility table →FAQs about vineyard fertilization
When to apply potassium in organic vineyard?
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The key moment for potassium in grapevine is veraison, when the berry begins to change color and accumulate sugars. Ecoganic K-FLOW 20, with 23.21 % measured K₂O, is especially suitable for fertigation in this period.
Can Ecoganic fertilizers be used in PDO vineyards?
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Yes. CE 2018/848 certified products are suitable for certified organic production, including vineyards with protected designations of origin (DOC, AOC, DOQ, etc.), provided the regulatory council permits the use of organic external inputs.
How to improve BRIX degrees in organic production?
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A correct potassium application at veraison, combined with a biostimulant like BOOST UNIVERSAL that improves the plant's metabolic efficiency, contributes to better sugar accumulation in the berry.
