Table 1. The median and range of soil properties for the 18 soils.
 
Property Median  Range
pH  7.7 5.2 - 8.1
Clay (%)  19 2 - 48
Lime (%) 1.5 0 - 48
Organic-C (%) 0.8 0.2 - 3.1
NaHCO3-Pi  (mg kg-1 22 7 - 106
NaHCO3-Po  (mg kg-1) 1 - 22
Water-Pi (mg kg-1 2.4 0.8 - 5.3
Bio-Pi (Fe-strip) (mg kg-1) 34  16 - 87
Total P (mg kg-1 858 220 - 1210
Total Pi  (mg kg-1) 538  60 - 890
Total Po (mg kg-1) 138 18 - 263


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