00377nam a2200121Ia 4500008004100000100001700041245013600058260001200194260001100206260000900217300000700226650002200233160109s9999    xx            000 0 und d10aCorea,R.S.G.  aStudy of the Effect of Calcium and Magnesium Ions on the Soil Permeability Based on the Value of the Sodium Adsorption Ratio (SAR).  aColombo  bIchemc  c2014  a34  aSodium Adsorption