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MarKey® Iron 6% EDDHA Chelate (3% Fe Ortho-Ortho EDDHA)

Water-soluble chelated iron fertilizer

MarKey® Iron 6% EDDHA Chelate (3% Fe Ortho-Ortho EDDHA) is a fully chelated water-soluble fertilizer recommended to prevent and correct iron deficiencies in crops. Soil application is preferred to prevent iron deficiencies; however, it may be used as a foliar spray to correct nutrient deficiencies when soil application is impractical.

  • Formulated for high pH soils
  • EDDHA chelate helps extend iron availability to plants
  • Contains 3% ortho-ortho chelated iron
  • Water-dispersible, dry-granular formulation

Packaging Options
Available in 50-pound bags.

Product Type
Crop Nutrition Icon
Crop Nutrition
Application Type
Soil Icon
Foliar Icon
Fertigation Icon
Product Line
BlueTerra Icon
Iron Icon

Application Details

MarKey® Iron 6% EDDHA Chelate (3% Fe Ortho-Ortho EDDHA) may be dissolved in water or liquid fertilizers, then applied to the soil as a spray or via drip, sprinkler or furrow irrigation. It may also be dry blended with dry fertilizers or inert carriers (such as sand), then broadcast, banded or side-dressed. For best results, this product should be incorporated into the root zone by tillage, drenching, irrigation or rainfall. MarKey® Iron 6% EDDHA Chelate may also be applied via foliar application.

Nutrient Function

Iron Icon
Iron is essential for chlorophyll formation and supporting healthy vegetative growth and efficient photosynthesis. It is critical for oxygen production in the plant. Iron is a mobile nutrient but is not transported from old leaves to new ones, often resulting in deficiencies in older leaves. Iron availability in the soil declines as soil pH increases above 4.
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