bookdepository.com wrote: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.
wayne fajkus wrote:Space, raw ingrediants, machinery, and water would be thei limiting factors. If all those are adequate there is no limit.