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)
| 1 | Dry Ashing | Muffle Furnace 400-600 o C |
| 2 | Organic Carbon Percentage is obtained by Dry Ashing Method | |
| 3 | Total N | Kjeldahl Method |
| 4 | Total P | Spectrophotometer or Colorimetric Method |
| 5 | Total K | Flame Photometer (Toth and Prince, 1949 |
| 6 | Total S | Precipitation Method |
| 7 | Calcium | EDTA Titration Method |
| 8 | Magnesium | EDTA Titration Method |
| 9 | Boron | Azomethine-H Colorimetric Method |
| 10 | Micronutrients – Total Zn, Cu, Fe, and Mn | Atomic Absorption Spectroscopy |