Description
Mg.
This is a soil salinity test. This method determines the amount of soil plant available magnesium on the soil colloid exchange sites by displacement with ammonium acetate solution buffered to pH 7.0. Cation concentrations are determined using atomic emission (AES), absorption spectrometry (AAS) or ICP-AES instrumentation. The method detection limit is approximately of 25 mg/kg and is generally reproducible ± 7%.