SL-285, a 5-page illustrated fact sheet by Alan L. Wright and Edward A. Hanlon, recommends for growers, managers and researchers the new and simple Loss-On-Ignition (LOI) test for determining the organic matter content of soils. Includes references. Published by the UF Department of Soil and Water Sciences, April 2009.
http://edis.ifas.ufl.edu/SS498