Analysis of Soil Samples

Di-acid digestion is used for determination of most of the elements ( P, K, Ca, Mg, S, Fe, Mn, Zn and Cu)

1Dry AshingMuffle Furnace 400-600 o C
2Organic Carbon Percentage is obtained by Dry Ashing Method 
3Total NKjeldahl Method
4Total PSpectrophotometer or Colorimetric Method
5Total KFlame Photometer (Toth and Prince, 1949
6Total SPrecipitation Method
7CalciumEDTA Titration Method
8MagnesiumEDTA Titration Method
9BoronAzomethine-H Colorimetric Method
10Micronutrients – Total Zn, Cu, Fe, and MnAtomic Absorption Spectroscopy