Because of strong geographic differences in soil properties and microbial communities, it is critical to interpret results of mi-crobial analyses in a context-specific manner. It is of limited utility to compare microbial biomass in one field against the biomass levels reported in other fields across a broad area because microbial biomass can be influenced by many factors that may not be directly relevant to soil health. Analogously, the weight of a specific person compared to the U.S. average should not, by itself, be used to determine if that individual is healthy or not. However, changes in the weight of a given adult could indicate health problems, or at least suggest that more detailed assessments of health status may be required.
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