The following parameters are required by obic_field() and obic_field_dt() but are (no longer) used in any of the underlying functions and can therefore probably be removed from the required inputs:
A_CACO3_IF The carbonate content of the soil
A_COM_FR The carbon fraction of soil organic matter
The following parameters are required by obic_field() and obic_field_dt() but are (no longer) used in any of the underlying functions and can therefore probably be removed from the required inputs: A_CACO3_IF The carbonate content of the soil A_COM_FR The carbon fraction of soil organic matter