In commercially available composts, I have not found many of the soil organisms that are responsible for making nutrients available to plants. Typically, these composts are produced without biodiversity in mind, and are very rich in bacteria.
The other players in the soil food web are generally missing – such as nematodes, fungi and protozoa.
Listed here are compost suppliers who’s compost I had under the microscope and am confident that they can provide biologically rich and diverse composts.
A little goes a long way, we need just a little to improve what is usually available from waste management processes – organic matter, with mostly bacteria.
Check your home compost – it may be better quality than you can buy!
- Soilsmiths, from Soil Ecology Lab
- Brighton Compost Club
A compost supplier map is being put together by Casey Williams from Fullcirclesoilhealth.com & Vitalgrowinc.com which covers other areas, too.
Soil Food Web Student 