What comes out of the tail end of worms appears to be very good for crops.
Smart as Poop - Ottawa's Vermicomposting Experts
Worm Factory – Smart as Poop
Vermicomposting: In House Composting for all Seasons
Private Tour & Workshop with Jocelyn – Jocelyn's Soil Booster
Vermicomposting: In House Composting for all Seasons
Worms at Work: Harnessing the Awesome Power of Worms with
What are the best worms for composting? Indian Blues or Red
West Michigan composting king turns 'worm poop' into black gold
I've got worms : r/vegetablegardening
Indoor Worm Composting or Vermicomposting
Earthworms for sale, Composting worms for sale
Worm Composting CanadaVermicomposting
Current problems of vermistabilization as a sustainable strategy
Victoria horticultural and compost groups partner for worm poop