Barrel compost (Maria Thun) for demeter certification
The contribution, measured
Time horizon: Ongoing
How it contributes
It gathers the Demeter-required preparations into a documentable, traceable application.
What to measure for this pairing
Why this goal matters
Demeter is the leading biodynamic certification. It requires the organic base plus the use of the biodynamic preparations, managing the farm as an organism, biodiversity quotas and its own cellar rules.
In practice, gaining and keeping Demeter is mostly a matter of doing — and proving. Every preparation application, operation and input has to be logged and traceable for the annual audit.
Goal indicators
Market & certification: The Demeter seal is a strong market differentiator and the formal goal of most biodynamic projects.
How to apply the practice
- 1Make or obtain the barrel compost (CPP).
- 2Dynamise in water.
- 3Spray on the soil, useful in conversions.
- 4Log the applications.
Frequently asked
How is it different from 500?
500 is horn manure; barrel compost concentrates the compost preparations (502–507) into a sprayable form, used as a complement.
Is it useful in conversion?
Yes — it is widely used to speed up the establishment of soil life at the start of a biodynamic conversion.
Same practice, other goals
Same goal, other practices — Demeter
How GrapeFlow helps
The proof Demeter certification demands — logged by plot and date.
Preparations & application log
Every application of 500, 501 and the other preparations logged by plot, date and rate — the history the Demeter audit asks for.
Electronic field notebook
All operations — compost, cover, animals, dynamisation — logged by plot, ready for certification.
Biodynamic calendar
Root, leaf, flower and fruit days and the lunar phases in GrapeFlow, to plan preparation applications and work in step with the calendar.