Barrel compost (Maria Thun) for soil vitality
The contribution, measured
Time horizon: 1–3 seasons
How it contributes
It distributes the compost preparations in concentrated form on the soil, to stimulate biology — useful especially in conversions.
What to measure for this pairing
Why this goal matters
Biodynamics puts soil life at the centre. The preparations and biodynamic compost aim to stimulate biological activity, humus formation and rooting — a living soil as the base of a balanced vine.
In practice this is measured as in any good soil management: organic matter, structure, biological activity and rooting. What sets biodynamics apart is the systematic use of the preparations and the logging of applications across the calendar.
Goal indicators
Market & certification: Soil vitality is the pillar of the biodynamic story and a practical requirement of Demeter certification.
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 — Soil
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.