Rating chart

 Variable

Value

Rating

  Chemical indicator

     pH

     Electrical conductivity (dS m^-1)

     Soil organic carbon (g kg^-1) 

     KMnO₄ oxidisable carbon   (mg kg^-1) 

     Available phosphorus (mg kg^-1)

     Available potassium (mg kg^-1)

     Available iron (mg kg^-1)

     Available manganese (mg kg^-1)

     Available zinc (mg kg^-1)

     Available copper (mg kg^-1)

   Physical indicator

     Bulk density (Mg m^-3)

     Maximum water holding capacity (%)

  Biological indicator

     Microbial biomass carbon (mg kg^-1)

     Dehydrogenase activity (ug TPF g^-1 24 h^-1)

     Potentially mineralizable  nitrogen (mg kg^-1)

     Carbon mineralization (µg CO₂-C g^-1 h^-1 )

     Microbial metabolic quotient
     (µg CO₂-C h^-1 kg^-1 MBC)

  Soil Health Index

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