What Is EDDHA Fe 6% and Why Is It the Most Effective Iron Chelate for Plants?

Technical Introduction

EDDHA Fe 6% (Ethylenediamine-N,N'-bis(2-hydroxyphenylacetic acid) ferric chelate) is a highly stable iron chelating agent designed to correct and prevent iron chlorosis in plants, particularly in alkaline and calcareous soils.
Its unique chemical structure protects iron from precipitation, ensuring maximum availability to plants even at high soil pH levels (up to 10).

Applications

1. Agriculture & Horticulture

• Prevents and treats iron deficiency in crops such as citrus, grapes, vegetables, ornamentals, and turfgrass.

• Maintains green leaf color and promotes photosynthesis by supporting chlorophyll production.

2. Hydroponics & Fertigation

• Provides stable and soluble iron in nutrient solutions over a wide pH range.

• Ensures continuous iron supply to fast-growing plants in soilless systems.

Advantages

• Excellent pH Stability: Effective in soils and water with pH 4–10.

• High Bioavailability: Rapidly absorbed through roots and translocated within plants.

• Long-Lasting Effect: Reduces the need for frequent applications.

• Water Soluble: Easily dissolves for use in fertigation, drip irrigation, or foliar sprays.

Typical Parameters

FAQs

Q1: Why choose EDDHA Fe over EDTA Fe?
A1: EDDHA Fe remains stable at much higher pH levels, making it ideal for alkaline soils.

Q2: Can EDDHA Fe 6% be used in drip irrigation systems?
A2: Yes, it dissolves completely and does not clog irrigation lines.

Q3: How fast does it correct iron deficiency symptoms?
A3: Leaf greening often appears within 7–10 days after application.

Q4: Is it safe for organic farming?
A4: Many formulations are allowed in organic systems—check certification before use.

Q5: Can it be mixed with other fertilizers?
A5: Compatible with most fertilizers except strong oxidizing agents.