Differences in calculation method of organic matter between Japan and Vietnam

Author: ktakeuchi

Japan:
100 – The water content – ash
Vietnam:
C/N * Nitrogen * 2.2
For example, in this case,
Japan:
100 – 19.0 – (5.0 + 5.1 + 3.0 + 14.0) = 53.9%
Vietnam:
6.6 * 5.0 * 2.2 = 72.6%