One of the primary references on analytical methods in soil science, Part 2 of the Methods series will be useful to all biogeoscientists, especially those with an interest in microbiology or bioremediation.
Also available:
Methods of Soil Analysis. Part 4. Physical Methods - ISBN 089118841X Minerals in Soil Environments, 2nd Edition - ISBN 0891187871 Soil Testing and Plant Analysis, Third Edition - ISBN 0891188444