Abstract

This study assesses soil fertility in the erstwhile Mahabubnagar District, Telangana, using key chemical indicators including pH, electrical conductivity (EC), organic carbon (OC), nitrate-nitrogen (NO??–N), available phosphorus (P), available potassium (K), sulphate-sulphur (SO?²?–S), exchangeable Ca, Mg and Na, and the micronutrients Zn, Fe, Mn and Cu. The analytical framework includes field sampling, laboratory analysis, quality assurance/quality control, descriptive statistics, seasonal comparison, correlation and regression analysis, and mandal-level interpretation. The study indicates substantial spatial and seasonal variability in soil fertility. Soil pH ranges from mildly acidic to moderately alkaline, while nitrate and sulphate generally show higher post-monsoon/Rabi values. Phosphorus availability is strongly associated with soil reaction, with greater availability around neutral pH. The findings support site- and mandal-specific nutrient management, synchronized fertilizer application, organic amendments and targeted pH correction. The work provides a practical framework for future soil-fertility surveys in the district.

References

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