Authorised organic amendments for nutrition & fertility
The effectiveness, measured
Time horizon: 1–3 seasons
Why it works
They supply slow-release nutrients and organic matter, covering the needs green manure does not meet.
What to measure for this pairing
Why this problem matters
Without synthetic mineral fertilisers, organic nutrition is indirect: you feed the soil, and the soil feeds the vine. Nitrogen comes from legumes and organic matter, and mineralisation runs at the pace of soil biology.
That requires planning — green manures, authorised organic amendments and regular analyses — to balance vigour and yield without the excess that raises disease susceptibility. Organic nutrition is soil management, not a fertiliser bag.
Problem indicators
Certification & rules: Only authorised inputs; traceability of applications is required at certification.
How to apply the means
- 1Analyse soil/leaf to size the need.
- 2Select only organically-authorised amendments.
- 3Apply the matched rate, preferring modest, regular applications.
- 4Log product, rate and plot for certification.
Frequently asked
Can any manure be used in organic?
No. There are restrictions on origin (e.g. from intensive livestock) and you must confirm the authorised-input list and the certifier’s rules.
Better one big dose or regular applications?
Modest, regular applications give a better soil response and lower risk of excess that raises vigour and disease susceptibility.
Same means, other problems
Same problem, other means — Nutrition
How GrapeFlow helps
The proof organic certification demands — logged by plot and date.
Fertilisation plan & analyses
Per-plot needs, organic amendments applied and soil and leaf analyses in one place.
Phytosanitary register with authorised inputs
Every treatment logged with product, rate and active substance, flagging what is allowed under organic rules — an audit-ready history.
Electronic field notebook
All operations — weeding, green manure, biocontrol — logged by plot and date, ready for organic certification.