Electrical conductivity and pH were measured according to the method of Rayment and Higginson (1992) in a 1:5 slurry of soil to distilled water using a Wissenschaftlich-Technische Werkstätten (WTW pH 325) meter
Electrical conductivity andpH were measured according to the method of Rayment andHigginson (1992) in a 1:5 slurry of soil to distilled water using aWissenschaftlich-Technische Werkstätten (WTW pH 325) meter