Comparative Assessment of Soil Chemical Characteristics in Two Contrasting Vegetable Cultivation Systems of Sri Lanka

Vegetable cultivating systems in Sri Lanka are characterized by intensive and highly commercialized with very high agricultural inputs. Diagnosing soil fertility levels is essential to supply plant nutrients a complete balanced manner minimizing environmental pollution. The objective of this study was assess chemical properties two vegetable central highlands Lanka. Study conducted contrasting systems: vegetable-potato-vegetable Nuwara Eliya (NE) vegetable-paddy-vegetable Marassana (M). Soil samples were analyzed for pH, pH-buffer capacity (pHBC), electrical conductivity (EC), cation exchange (CEC), total carbon (TC), nitrogen (TN), available such as Phosphorus (P), Potassium (K), Magnesium (Mg), Sulphur (S), Copper (Cu) Zink (Zn) optimum values compared. Among measured pHBC, EC, TC%, TN%, from P, K, Mg, S, Zn significantly (P