Mature compost or worm castings
Stabilised organic matter obtained by composting or by earthworm digestion, dark and with an earthy smell.
Characteristics
- One vermicompost sample contained about 1.9% N, 0.5% P, 0.7% K and 4.4% Ca.
- Hosts a diverse community of microorganisms.
- Releases its nutrients gradually as it is moistened.
- Traditionally used as a microbial inoculum in compost teas, biol and bokashi.
Role in the preparation: Provides microorganisms and nutrients as an inoculum in fermented or aerated liquid preparations.
Caution: Use only fully mature material, store it moist and out of the light in a closed container, and wash hands after handling.
Sources: New Mexico State University - Vermicomposting (Guide H-164) · LSU AgCenter - Composting Series: Worm Castings
Documentary information: this is neither a recommendation for use nor a plant-protection or veterinary claim. Check your country's regulations before any use.