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Translations:Benutzer:Arian/Klett-Mini-Test/1102/en
A rough but practically serviceable guide-figure with regard to the slower or faster decomposability of materials is provided by what is called the C/N ratio. The higher the nitrogen content in relation to carbon — the structural backbone — the faster the breakdown. The series from the difficult to the easily decomposable materials runs as follows:
| Sawdust | = | 500 C:1 N |
| Wood chips, depending on composition | = | 250–400:1 |
| Wheat straw | = | 100:1 |
| Rye straw | = | 65:1 |
| Oat straw | = | 50:1 |
| Oak and beech leaf-litter | = | 40–60:1 |
| Legume straw | = | 50–30:1 |
| Fresh farmyard manure | = | 20–25:1 |
| Kitchen waste | = | 25:1 |
| Rotted manure | = | 50–20:1 |
| Cow dung | = | 14–16:1 |
| Mature compost | = | 10–12:1[1] |
Everything the agricultural organism excretes inwardly as organic substance over the course of the year can count as nutritive humus. On arable and garden land this comprises the stubble residues and root-work, which amounts to roughly one third of the total grown mass, together with the manure arising from animal husbandry (including the straw bedding), and old hay, straw, feed remnants from the stall, leaf-litter, lawn clippings, kitchen waste, ditch excavations and so forth.[2] What will be addressed here above all is the processual activity from the setting-up to maturity. The compost heap is laid down in a location as shaded as possible, above ground level, within the working sphere of air and warmth — the metabolic pole of agriculture — upon
- ↑ Krafft von Heynitz, Georg Merckens: Das biologische Gartenbuch, Stuttgart 1994, 351 S.
- ↑ In Bezug auf die praktische Handhabe der Kompostbereitung sei auf die einschlägigen Publikationen der oben genannten Autoren verwiesen; sowie auf Friedrich Sattler, Eckard von Wistinghausen: Der landwirtschaftliche Betrieb, Biologisch-Dynamisch, Stuttgart 1989, 333 S.; sowie auf Herbert Koepf, Wolfgang Schaumann, Manon Hacius: Biologisch-dynamische Landwirtschaft: Eine Einführung, Stuttgart 1996, 368 S.
