Exchangeable Hydrogen and Soil Reaction

Abstract
The use of a neutral normal solution of ammonium acetate is proposed for leaching soil in base-exchange studies, and the advantages of this salt are enumerated. An analytical procedure whereby exchanged H, Al, Mn, Ca, Mg, K, and Na are all determined on the same CH3COONH4 leaching and absorbed NH4 on the residue of soil is outlined. Data obtained from an examination of a Clermont silt loam profile by this method, in which a correlation between percentage saturation of total base absorbent capacity by neutral salt forming bases and pH was noted, are presented and discussed.