{"id":321,"date":"2026-05-11T13:12:34","date_gmt":"2026-05-11T13:12:34","guid":{"rendered":"https:\/\/www.shivamagroind.com\/blogs\/?p=321"},"modified":"2026-05-12T10:59:37","modified_gmt":"2026-05-12T10:59:37","slug":"edta-ferric-vs-eddha-iron-which-iron-fertilizer-works-better-for-your-crops","status":"publish","type":"post","link":"https:\/\/www.shivamagroind.com\/blogs\/edta-ferric-vs-eddha-iron-which-iron-fertilizer-works-better-for-your-crops\/","title":{"rendered":"EDTA Ferric vs. EDDHA Iron: Which Iron Fertilizer Works Better for Your Crops?"},"content":{"rendered":"\t\t
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<\/span>Why Iron Deficiency is a Major Agricultural Challenge<\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Iron (Fe) is the fourth most abundant element in the earth’s crust, yet iron deficiency-known as iron chlorosis-is one of the most common and economically significant micronutrient disorders in global agriculture. The paradox of iron deficiency in iron-rich soils is explained by chemistry: while total iron in soil is abundant, the plant-available fraction (Fe\u00b2\u207a and Fe\u00b3\u207a in solution) is governed by soil pH. In alkaline and calcareous soils-which account for more than 30% of the world’s agricultural land, including large areas of India, Pakistan, the Middle East, Mediterranean Europe, and Latin America-iron solubility drops to levels far below plant requirements.<\/p>

At soil pH 7.0, Fe\u00b3\u207a solubility is already 1,000 times lower than at pH 6.0. At pH 8.0, it is 1,000,000 times lower. Even a small upward shift in soil pH can push crops into severe iron deficiency, manifesting as the characteristic interveinal chlorosis-yellowing of young leaves while the veins remain green-that growers in alkaline soil regions know all too well.<\/p>

The crops most sensitive to iron chlorosis include grapes, citrus, peach, plum, apple, pear, blueberry, strawberry, soybean, peanut, chickpea, rice (in aerobic and upland conditions), and many vegetables grown in high-pH soils or hydroponic systems.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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<\/span>The Two Main Chelated Iron Options: EDTA Ferric and EDDHA Iron<\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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To correct iron deficiency in alkaline soils, agronomists rely on chelated iron fertilizers that protect the iron from soil precipitation. Two families of iron chelate dominate the global market:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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