Table 1.
Methods of analyses and references used for determining soil chemical properties.
| Parameter | Method | References |
|---|---|---|
| pH | 1:1 soil-water mixture, glass electrode (soil/water slurry using pH meter) | [25] |
| Soil Organic Matter (SOM), % | 1 N K2Cr2O7.H2SO4 oxidation, FeSO4 titration | [26] |
| Available Phosphorous, ppm | Bray Extracting Solution (0.03 N NH4F), colorimetry | [27] |
| Exchangeable Potassium, meq/100g soil | 1 N NH4CH3COO buffered pH 7.0 extraction, flame photometry | [25] |
| Available Iron, mg/kg | DTPA Extraction, Atomic Absorption Spectroscopy | [28] |
| Available Zinc, mg/kg |