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Not AvailableIron is one of the essential micro-nutrients required by the plants. It plays an important role in the synthesis of chlorophyll, carbohydrate production, cell-respiration, chemical reduction of nitrate, sulphate and N assimilation, component of cytochrome oxidase, ferredoxin protein and several enzyme systems. Iron deficiency symptoms appear on younger leaves indicating yellowish inter-veinal areas of leaves (commonly referred to as iron chlorosis). In general, plants are prone to iron deficiency in alkaline, calcareous soils, coarse textured soils, eroded soils, low organic matter soils and cold weathered areas soils except flooded rice field soils. In India more than one-third of the soil is calcareous and spread mostly in the low rainfall areas of the western (Gujarat, Maharashtra, Rajasthan and Karnatka) and central (M.P. U.P.) parts of the country where groundnut is a major crop. Therefore iron chlorosis is causing considerable yield reductions. The crops sensitive to iron chlorosis are groundnut, citrus, field bean, grapes, soybean, vegetables and ornamentals.Not Availabl