Soil Fertility Map Paddy Soil Fertility Maps Information for the users Distribution of elements in rice soil samples collected Critical values reported in the literature pH Electrical Conductivity (EC) Potassium (K - CaCl2) Potassium (K - Ammonium Acetate) Phosphorus (P) Magnesium (Mg) Iron (Fe) Manganese (Mn) Sodium (Na) Zinc (Zn) Copper (Cu) Aluminium (AI) Cobalt (Co) Molybdenum (Mo) Lead (Pb) Cadmium (Cd) Arsenic (As)