cultivation of worms
This means composting using a wormery, a bin in which special 
Using worms to convert decaying organic matter into compost.
The raising and production of earthworms and their by-products.
Tthe cultivation of annelid worms (as earthworms or bloodworms) especially for use in composting.
Tthe cultivation of annelid worms (as earthworms or bloodworms) especially for use in composting.