High Quality Organic Iron Chelate Fertilizer EDDHA Fe 6% Powder and Granular for Agriculture Use

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Iron chelate refers to a chemical compound in which iron (Fe) is bound to an organic molecule (chelate) that helps make the iron more soluble and available to plants. Iron is an essential micronutrient for plants, playing a key role in chlorophyll production and overall plant health. In many soils, particularly alkaline or calcareous soils, iron becomes unavailable to plants, even when it is present. Iron chelates are used to overcome this problem and ensure that plants can take up the iron they need.

Chemical Properties

• Formula: Fe + chelating agent (such as EDTA, DTPA, EDDHA)
• Types of Iron Chelates:
  • Fe-EDTA (Ethylenediaminetetraacetic acid): Best for neutral to slightly acidic soils.
  • Fe-DTPA (Diethylenetriaminepentaacetic acid): Suitable for slightly more alkaline soils.
  • Fe-EDDHA (Ethylenediamine-N,N'-bis(2-hydroxyphenylacetic acid)): Effective in highly alkaline soils (up to pH 9).

These chelating agents form stable complexes with iron, keeping it soluble and available for plant uptake even in unfavorable soil conditions.

How Iron Chelates Work

In soils with a higher pH, iron tends to form insoluble compounds that plants cannot absorb. Chelates bind iron ions and keep them soluble, preventing them from precipitating out of the soil solution. This makes iron available for plant uptake, ensuring that it remains in a form that plants can use.

The effectiveness of different iron chelates varies with soil pH:

• Fe-EDTA is effective up to a soil pH of 6.5, beyond which it becomes less effective.
• Fe-DTPA works well up to a pH of about 7.5.
• Fe-EDDHA is the most stable and effective in highly alkaline soils (pH up to 9.0).

Uses of Iron Chelates

1. Correcting Iron Deficiency (Chlorosis)

Iron chelates are most commonly used to treat iron deficiency, also known as iron chlorosis, in plants. Iron deficiency results in yellowing of leaves (interveinal chlorosis), particularly in younger leaves, since iron is essential for chlorophyll synthesis. The application of iron chelates helps restore normal iron levels in plants, leading to improved chlorophyll production and healthy, green foliage.

2. Agriculture

• Fertilizer: Iron chelates are used in agriculture and horticulture as fertilizers to provide an essential source of iron, particularly in crops that are prone to iron deficiency (e.g., fruit trees, tomatoes, roses).

• Foliar Spray: Iron chelates can be applied as a foliar spray, allowing plants to absorb iron directly through their leaves. This method is effective for quick correction of iron deficiencies, especially when root uptake is impaired by unfavorable soil conditions.

• Soil Application: Iron chelates can be applied directly to the soil to supply iron. This method works best when the right type of chelate (based on soil pH) is used.

3. Hydroponics

In hydroponic systems, where plants are grown in a nutrient solution instead of soil, iron chelates are added to ensure that plants receive an adequate supply of iron. The chelated form of iron is highly soluble in water, making it ideal for nutrient solutions in hydroponics.

Advantages of Iron Chelates

1. Enhanced Iron Availability: Iron chelates ensure that iron remains available to plants, even in alkaline or calcareous soils where iron would otherwise become insoluble.

2. Effective in Low Doses: Because chelated iron is more readily available to plants, it can be applied in lower doses compared to other forms of iron fertilizers.

3. Corrects Iron Deficiency: Iron chelates are an effective solution for treating iron deficiency in plants, which is a common issue in many crops and ornamentals.

4. Versatile Application Methods: Iron chelates can be applied through soil, foliar sprays, or hydroponic solutions, making them flexible for different agricultural practices.

Types of Iron Chelates

1. Fe-EDTA (Ethylenediaminetetraacetic acid):

   • Effective in soils with a pH up to 6.5.
   • Commonly used for crops grown in slightly acidic soils or in hydroponic systems.

2. Fe-DTPA (Diethylenetriaminepentaacetic acid):

   • Effective in soils with a pH up to 7.5.
   • Often used in greenhouse or nursery crops, where soils are slightly alkaline.

3. Fe-EDDHA (Ethylenediamine-N,N'-bis(2-hydroxyphenylacetic acid)):

   • Effective in soils with a pH up to 9.0.
   • Best choice for highly alkaline soils or soils rich in calcium carbonate (calcareous soils).
   • More expensive than Fe-EDTA and Fe-DTPA but necessary for highly alkaline soils.

Application Methods

• Soil Application: Iron chelates are applied to the soil either as granules, powders, or liquids. When applied to the soil, iron chelates ensure that the iron remains available for plant uptake, even in challenging soil conditions.

• Foliar Spray: When applied as a foliar spray, iron chelates can quickly correct iron deficiencies. This method is often used when fast results are needed, especially during the growing season.

• Hydroponics: Iron chelates are mixed into the nutrient solution used in hydroponic systems, ensuring that plants receive an adequate supply of iron in a water-soluble form.

Safety and Environmental Considerations

Iron chelates are generally safe for plants, humans, and the environment when used as directed. However, care should be taken to avoid overapplication, as excessive iron can be toxic to plants. Chelating agents like EDTA and DTPA can persist in the environment, so proper application rates and guidelines should be followed to minimize environmental impact.

Comparison with Other Iron Fertilizers

• Iron Sulfate (FeSO₄): While iron sulfate is a common iron fertilizer, it is less effective in alkaline soils because it quickly becomes insoluble. Iron chelates remain available to plants in alkaline conditions, making them superior for treating iron deficiency in such soils.

• Chelated Iron vs. Non-Chelated Iron: Non-chelated forms of iron, like iron sulfate, are prone to becoming unavailable in soils with high pH, whereas iron chelates prevent iron from precipitating out of the soil solution.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

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We offer good quality products at affordable prices