COMPOST COMPOST https://extension.illinois.edu/compost/process.cfm adding compost https://extension.illinois.edu/compost/process.cfm Adding compost and additional fertilizer COMPOST COMPOST adding compost organic compost https://extension.illinois.edu/compost/process.cfm composting process adding compost https://extension.illinois.edu/compost/process.cfm layering "brown" and "green" materials in a bin COMPOST components of a compost bin