A greenhouse pot experiment was conducted at the Department of Soil Science and Agricultural Chemistry, Institute of agricultural Sciences, Banaras Hindu University, Varanasi to study of the effect of iodine fertilization (Iodine and Iodates) the levels (. and mg kg-1,) in combination of recommended dose of Nitrogen Phosphorus, Potassium and Nitrogen Phosphorus, Potassium With Farm Yard Manure on Calcium, Magnesium and Sulphur content in spinach (Spinacea oleracea L.) Fortification of iodine with the application of potassium iodide/iodine in spinach with recommended doses of fertilizers (NPK)/NPK + FYM significantly improved the Secondary nutrient content (Calcium, Magnesium and Sulphur) in Spinace leaves. | Effect of integrated nutrients management and iodine fertilization on sulphur content in spinach Spinacea oleracea L.