Author(s):

Shishu Pal Singh, Narendra Kumawat, Vimal Kumar, Shivraj Singh

Abstract: Effects of organic and inorganic Iodine fertilizer on the Minerals content in (Spinacia oleracea L.) was studied in Poly house of the Department of Soil Science and Agricultural Chemistry, Institute of Agricultural Chemistry, Banaras Hindu University. The experiment was laid out in a Randomized Complete Design (RCD) with 14 treatment and 3 replications Treatment included organic (FYM) and inorganic (Potassium iodide and iodate) with a control. Caliuma and Magnesium content in the plant samples was analyzed by extracting HNO₃ and HClO₄ by compelximetric titration method with flam photometer. A critical examination on fortification of iodine in spinach with recommended doses of fertilizer (NPK)/NPK + FYM revealed that iodine application either KI or KIO₃ improved the Ca and Mg in spinach. FYM (1% organic carbon) application with chemical fertilizers (N,P,K) reduced the magnesium content at both stages 45 DAS + 60 DAS whereas calcium content at 60 DAS were improved with the application of FYM with N, P, K fertilizers and iodine.

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