Comparison of Soil pH, Electrical Conductivity, and Concentrations of Essential Minerals and Toxic Trace Elements in Paddy Fields across Different Provinces of Sri Lanka. - Thennakoon, T. M. D. N.; Chandrasekara, E. D. C. T.; Chandrajith, R.; Rathnayake, U. K.; Suriyagoda, L. D. B. (Ceylon Journal of Science, 2025)