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. Author manuscript; available in PMC: 2024 Jul 27.
Published in final edited form as: Front Agron. 2023 May 5;5:1134514. doi: 10.3389/fagro.2023.1134514

Table 2. Methods adopted for soil analysis.

Sl. No. Parameter Method
1. Soil reaction (pH) (1:2.5 soil: water suspension) Potentiometry (Kondvilkar et al., 2017)
2. Electrical conductivity (1:2.5 soil: water suspension) Conductometry (Kondvilkar et al., 2017)
3. Organic carbon (%) Wet oxidation (Walkley and Black, 1934)
4. Available Nitrogen (kg ha-1) Macro kjeldahl Distillation (Subbiah and Asija, 1956)
5. Available Phosphorus (kg ha-1) Spectrophotometry (Olsen et al., 1954)
6. Available Potassium (kg ha-1) Flame photometry (Kondvilkar et al., 2017)
7. Exchangeable Calcium and Magnesium (mEq/1000 g) Complexometric titration (Kondvilkar et al., 2017)
8. DTPA extractable Iron, Manganese, Zinc and Copper (ppm) Atomic Absorption Spectrophotometry (Lindsay and Norwell, 1978)