EDDHA Fe 6%
EDDHA Fe 6% — Stable to pH 9-10 in Calcareous Soils
AI-generated imagePremium ortho-ortho (o-o) isomer ratio options available: 1.8 / 2.4 / 3.0 / 3.6 / 4.2 / 4.8. EDDHA remains stable and plant-available up to roughly pH 9-10, making it the practical choice for correcting iron deficiency in calcareous, high-pH soils where standard EDTA chelates fail to hold iron in solution. Supplied as powder or granular, water-soluble.
Available in 1 kg, 5 kg and 25 kg moisture-proof bags. Storage: Store in a cool, dry place away from sunlight and humidity.
Technical Data Sheet
Controlled copies are supplied for the requested market and formulation.
Safety Data Sheet
Controlled copies are supplied for the requested market and formulation.
Chelation surrounds metal nutrients (Fe, Zn, Mn, Cu, Ca, Mg) with protective organic molecules, keeping them fully soluble and plant-available across a wide range of soil pH levels to ensure effective nutrient delivery.
EDTA Zn
Zinc bound to EDTA, the standard synthetic chelating agent, keeping zinc plant-available in solution up to roughly pH 6.5-7.5 rather than precipitating out as it would in an unchelated salt. Zinc deficiency shows first in new growth as shortened internodes and interveinal chlorosis ("little leaf"), a common issue in high-pH or high-phosphorus soils that lock up free zinc. Chelation gives more reliable foliar and fertigation uptake than sulfate forms under those conditions.
EDTA Mn
Manganese bound to EDTA, keeping the nutrient in plant-available form for foliar or fertigation delivery up to roughly pH 6.5-7.5. Manganese deficiency appears as interveinal chlorosis on middle-to-young leaves, most common on high-pH or poorly aerated soils where manganese becomes chemically unavailable regardless of total soil content. Chelation avoids the fixation that limits sulfate-form manganese in those same conditions.
EDTA Fe
Iron bound to EDTA, the most common and cost-effective iron chelate, stable and plant-available up to roughly pH 6.5 — the classic correction for iron chlorosis, which shows as interveinal yellowing in the youngest leaves since iron is nearly immobile within the plant. EDTA-Fe is the standard first choice for moderate-pH soils; above pH 6.5-7 its stability drops off sharply, which is where DTPA- or EDDHA-chelated iron becomes necessary instead.