The living element of the soil and includes bacteria, fungi and the larger organisms such as earthworms. These need air, water and food to survive. Their interrelationships are complex and are best described as a living ‘soil food web’ – more information on the soil food web can be found at http://www.soilfoodweb.com/
Both on farm and laboratory testing is available:

Please scroll right to view full table

What to test:HowOn farm tests
Primary consumersBacteria, FungiVisual and labMicroscope
Secondary consumersProtazoa, Springtail, Nematodes,
Mites
Visual and labVisual and
microscope
Higher level consumersEarthworms, Beetles, InsectsVisual and labEarth worm counts
Opal kits
Overall biological activityBiological activity via respiration
Individual community function and
activity
Lab testing

On farm testing

Inspection pits
Microscope
Visual and microscope
Earthworm counts
Opal kits

Lab Testing

Overall biological activity
Bacteria
Fungi
Protazoa
Springtail
Nematodes
Mites