Organic fertilization program for grapevine
Organic fertilization program for vineyards based on BBCH stages. From budbreak to post-harvest, with special emphasis on veraison and ripening to maximize wine quality.
All listed products are certified CE 2018/848, NOP USDA and JAS — suitable for certified organic production
Application calendar by phenological phase
Budbreak
BBCH 01-09Products
Dose
NITROTECH 2.5: 3-5 L/ha · BOOST UNIVERSAL: 2 L/ha
Objective
Promote uniform bud break and supply nitrogen for early growth
Pre-bloom
BBCH 55-57Products
Dose
BOOST UNIVERSAL: 3 L/ha · UNIVERSAL POWER: 2 L/ha
Objective
Support fruit set and reduce flower drop (coulure)
Full bloom — fruit set
BBCH 65-71Dose
BOOST UNIVERSAL: 3 L/ha · CALCIUM 40: 2 L/ha · NITROTECH 2.5: 3 L/ha
Objective
Maximise berry set and supply calcium for the berry cell wall
Berry growth
BBCH 73-79Products
Dose
NITROTECH 16: 4 kg/ha · K-FLOW 20: 4 L/ha · CALCIUM 40: 2 L/ha
Objective
Cover the high nitrogen, potassium and calcium demand during berry growth
Veraison
BBCH 81-85Products
Dose
PK-FLOW 20-20: 5 L/ha · K-FLOW 20: 4 L/ha
Objective
Potassium and phosphorus for veraison: sugar (BRIX) and anthocyanin accumulation
Ripening — harvest
BBCH 87-89Products
Dose
K-FLOW 20: 5 L/ha · FULVEX 50S: 3 kg/ha
Objective
Maximise Brix, tannin structure and final wine quality
Post-harvest
Post-vendimiaProducts
Dose
NITROTECH 2.5: 4 L/ha · PHOSMAX 20: 3 L/ha
Objective
Vine recovery and reserve build-up for next season
| Phase | BBCH | Products | Dose | Objective |
|---|---|---|---|---|
| Budbreak | BBCH 01-09 | NITROTECH 2.5: 3-5 L/ha · BOOST UNIVERSAL: 2 L/ha | Promote uniform bud break and supply nitrogen for early growth | |
| Pre-bloom | BBCH 55-57 | BOOST UNIVERSAL: 3 L/ha · UNIVERSAL POWER: 2 L/ha | Support fruit set and reduce flower drop (coulure) | |
| Full bloom — fruit set | BBCH 65-71 | BOOST UNIVERSAL: 3 L/ha · CALCIUM 40: 2 L/ha · NITROTECH 2.5: 3 L/ha | Maximise berry set and supply calcium for the berry cell wall | |
| Berry growth | BBCH 73-79 | NITROTECH 16: 4 kg/ha · K-FLOW 20: 4 L/ha · CALCIUM 40: 2 L/ha | Cover the high nitrogen, potassium and calcium demand during berry growth | |
| Veraison | BBCH 81-85 | PK-FLOW 20-20: 5 L/ha · K-FLOW 20: 4 L/ha | Potassium and phosphorus for veraison: sugar (BRIX) and anthocyanin accumulation | |
| Ripening — harvest | BBCH 87-89 | K-FLOW 20: 5 L/ha · FULVEX 50S: 3 kg/ha | Maximise Brix, tannin structure and final wine quality | |
| Post-harvest | Post-vendimia | NITROTECH 2.5: 4 L/ha · PHOSMAX 20: 3 L/ha | Vine recovery and reserve build-up for next season |
Complete program
Download the vineyard fertilization program
PDF with complete BBCH table, doses and product sheets
FAQs about vineyard fertilization
How do Ecoganic products improve Brix in the vineyard?
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Brix (sugar concentration) in grapes is improved mainly through strategic potassium applications over veraison (BBCH 81-85). PK-FLOW 20-20 and K-FLOW 20 supply phosphorus and potassium in highly available forms that favour sugar synthesis and accumulation in the berry. Fulvic acids (FULVEX) applied at ripening enhance uptake of all nutrients and improve final must quality.
How can coulure be limited in organic vineyards?
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Coulure (mass flower drop without set) is limited with algae biostimulant applications at pre-bloom (BBCH 55-57). BOOST UNIVERSAL and UNIVERSAL POWER improve pollen viability, the fertilisation process and flower retention. Applied 7-10 days before bloom, they significantly reduce the coulure rate.
Does post-harvest fertilization matter in the vineyard?
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Yes, post-harvest fertilization is critical in organic vineyards. After harvest the vine needs to replenish the carbon and nitrogen reserves spent on the crop. Applications of NITROTECH 2.5 and PHOSMAX 20 after harvest strengthen the root system and improve tolerance to winter cold. A good post-harvest recovery translates directly into better bud break the following season.