EDDHA & EDTA Chelates
High-stability chelated micronutrients for agriculture — EDDHA-Fe 6% with o,o-4.8% isomer content for calcareous and alkaline soils, plus a full EDTA series (Fe / Zn / Mn / Cu / Ca / Mg).
The Problem
Iron deficiency in
high-pH soils
In calcareous and alkaline soils (pH > 7), iron applied as inorganic salts (e.g. ferrous sulfate) rapidly converts to insoluble forms that crops cannot absorb. Chlorosis in fruit trees, vines and horticultural crops is the visible symptom.
Chelation keeps iron and other micronutrients in solution and available to the plant. The strength of the chelate determines how well it holds at high pH:
| Chelate type | Stability range | Best suited for |
|---|---|---|
| EDTA-Fe (13%) | Stable up to ~pH 6.5 | Acidic–neutral soils, foliar, hydroponics |
| EDDHA-Fe 6% (o,o 4.8%) | Stable up to pH 9–11 | Calcareous / alkaline soils, fruit trees |
Chelation
Keeps metals in solution
Uptake
Available to leaf & root
Alkaline soils
Holds at high pH
Stability at a glance
pH 4
EDTA-Fe
holdsup to ~6.5
EDDHA-Fe
holdsup to 9–11
pH 11
EDDHA-Fe
EDDHA-Fe 6%
| Model No. | Chemical Name | Content | Appearance |
|---|---|---|---|
| XFE4201-1 | EDDHA-FE-6 | 1.2 | Powder/Granular |
| XFE4201-2 | EDDHA-FE-6 | 1.8 | Powder/Granular |
| XFE4201-3 | EDDHA-FE-6 | 2.4 | Powder/Granular |
| XFE4201-4 | EDDHA-FE-6 | 3.0 | Powder/Granular |
| XFE4201-5 | EDDHA-FE-6 | 3.6 | Powder/Granular |
| XFE4201-6 | EDDHA-FE-6 | 4.2 | Powder/Granular |
| XFE4201-7 | EDDHA-FE-6 | 4.8 | Powder/Granular |
| XFE4201-8 | EDDHA-FE-6 | 5.0 | Powder/Granular |
EDTA Series
The full micronutrient set
| Model No. | Product | Content |
|---|---|---|
| XFE5001 | EDTA-Fe | Fe 13% |
| XFE5007 | EDTA-Zn | Zn 15% |
| XFE5006 | EDTA-Mn | Mn 13% |
| XFE5009 | EDTA-Cu | Cu 15% |
| XFE5004 | EDTA-Ca | Ca 10% |
| XFE5005 | EDTA-Mg | Mg 6% |
| XFE5012 | EDTA Mix | Cu+Zn+Fe+Mg+Mn+B+Mo+Co |
Application
Right chelate,
right program
EDDHA-Fe — soil application (drench or soil injection at the drip line) or fertigation, applied in spring at the start of vegetative growth.
EDTA series — foliar, fertigation and hydroponic programs (soil use on acidic-to-neutral soils only; stable up to ~pH 6.5).
Tell us your soil pH and crop
