Chelsea Green Publishing
The Worm Farmer's Handbook
Turning waste into wealth sounds too good to be true, but many worm farmers are finding that vermicomposting is a reliable way to do just that. Vermicast―a biologically active, nutrient-rich mix of earthworm castings and decomposed organic matter―sells for $400 or more per cubic yard. Compare that to regular compost, sold at about $30 a cubic yard, and you’ll see why vermicomposting has taken root in most countries and on every continent but Antarctica.
Vermicomposting is also one of the best sustainable solutions for organic waste management. Vermicomposting manure and crop wastes on farms improves crop yields while reducing demand for off-farm inputs. Vermicast has higher nutrient levels and lower soluble salt content than regular compost, and it improves soil aeration, porosity, and water retention. Plus, vermicast suppresses plant diseases and insect attacks. Municipalities, businesses, community gardens, schools, and universities can set up vermicomposting operations to process food residuals and other waste materials.
This book digs into all the details, including:
- Choosing the right production system
- Regulatory issues and developing a business and marketing plan
- Finding and managing feedstocks
- Pre-composting: why and how to do it
- Monitoring an active worm bed
- Harvesting, screening, testing, packaging, and storing vermicast
- Markets for earthworms and vermicast
- Food security: how vermicast benefits soils and plants
- Keys to success: avoiding common pitfalls