EDDHA Fe Fertilizer is the most advanced and stable chelated iron micronutrient specially designed to solverecurrent crop iron chlorosis in alkaline, calcareous, and saline-alkali soils. Unlike EDTA Fe, which fails in high-pH environments, our EDDHA iron chelate maintains 100% nutrient stability across an ultra-wide pH range of 4.0–10.0. Featuring high bioavailability, full water solubility, and strong anti-fixation capacity, it is the ultimate solution for stubborn iron deficiency in high-value sensitive crops and is widely trusted by professional growers and fertilizer formulators worldwide.
Why EDDHA Fe Is Better Than Ordinary Iron Fertilizers & EDTA Fe
Iron deficiency chlorosis is not only caused by insufficient iron content in soil but mainly by iron inactivation. In alkaline and calcareous farmland, free iron ions quickly bind with calcium, phosphorus, and carbonate to form insoluble precipitates, making iron completely unavailable to crops.
Traditional inorganic iron and even EDTA chelated iron lose efficacy at pH above 7.5–8.0, cannot resist high soil alkalinity, and cannot solve persistent yellow leaf problems. As a high-end organic chelated iron, EDDHA Fe owns the strongest molecular chelating structure and O-O isomer activity. It locks iron ions tightly, resists soil fixation and oxidation, and delivers stable available iron supply in all soil conditions, especially suitable for stubborn iron-deficient farmland where ordinary iron fertilizers are ineffective.
Core Plant Nutrition Functions & Physiological Effects
Iron is a core element for plant chlorophyll synthesis, photosynthesis, and enzyme metabolism. EDDHA Fe provides long-term, high-activity iron nutrition to optimize crop physiological performance in all growth stages:
Eliminate stubborn chlorosis: Rapidly corrects interveinal yellowing, pale young leaves, and leaf whitening caused by unavailable iron, restoring dark green foliage in a short time.
Boost photosynthetic efficiency: Promotes continuous chlorophyll production, enhances light energy utilization, and accumulates more dry matter for crop growth.
Activate enzyme metabolism: Stimulates respiratory and antioxidant enzymes, improves root activity, nutrient transportation, and stress resistance.
Optimize yield and quality: Stabilizes flower bud differentiation, increases fruit setting rate, improves fruit coloring, sweetness, and commodity value.
Best Application Crops (High Iron-Demand & Alkaline Soil Sensitive)
EDDHA Fe is the preferred iron nutrient for iron-sensitive high-value crops, especially those widely planted in alkaline and calcareous soil areas:
1. Citrus Fruit Trees
Oranges, lemons, grapefruits, and tangerines are extremely sensitive to soil alkalinity and prone to severe iron deficiency yellowing. EDDHA Fe stably supplies available iron in orchard alkaline soil, improves tree vigor, reduces flower and fruit drop, and enhances fruit gloss and sweetness.
2. Berry & Vine Fruits
Grapes, strawberries, blueberries, and raspberries suffer from poor growth and uneven coloring due to iron inactivation. High-stability EDDHA Fe ensures continuous iron supply during flowering and fruit expansion, promoting uniform coloring, sugar accumulation, and improving fruit taste and firmness.
3. Stone Fruits & Orchard Trees
Peach, pear, apple, cherry, and apricot trees often show recurrent yellow leaf disease in saline-alkali land. Long-term application of EDDHA Fe effectively solves stubborn chlorosis, strengthens tree growth potential, and realizes stable annual yield.
4. Acid-Loving Ornamental Plants
Azalea, gardenia, camellia, and osmanthus are typical acid-loving plants. They easily turn yellow and wither in neutral and alkaline soil. EDDHA Fe efficiently adjusts soil nutrient activity, maintains healthy leaf color, brightens flower color, and prolongs flowering period.
5. Vegetables, Turf & Hydroponic Crops
Solanaceous vegetables, lawn turf, and greenhouse hydroponic crops all adapt well to EDDHA Fe. It prevents nutrient precipitation in irrigation systems, avoids pipeline blockage, and provides stable and efficient iron nutrition for protected and soilless cultivation.
Exclusive Product Advantages of EDDHA Fe
Ultra-wide pH stability (pH 4.0–10.0): Works perfectly in acidic, neutral, alkaline, and calcareous soil, filling the defect that EDTA Fe fails in high-pH soil.
Higher bioavailability: Active O-O isomer structure delivers far higher crop absorption and utilization rate than conventional iron fertilizers, showing obvious effects with low dosage.
100% water-soluble & no precipitation: Dissolves instantly without residue, suitable for foliar spray, drip irrigation, fertigation, and soil application.
Strong compounding compatibility: Stable to mix with macro elements, other chelated micronutrients, and most agrochemicals, ideal for high-end fertilizer formula upgrading.
Long-lasting efficacy: Resists soil fixation and oxidation, provides 4–6 weeks of continuous iron supply, reduces fertilization frequency and planting cost.
Product Specifications & Packaging
Available in high-purity agricultural grade EDDHA Fe 6% (standard mainstream specification), yellow fine crystalline powder, low heavy metal content, and eco-friendly. Standard 25kg moisture-proof woven bag packaging, supporting custom packaging, private label, and OEM formula services. Complete export certificates and stable bulk supply for global agricultural distributors and fertilizer manufacturers.
Professional After-Sales & Technical Support
We provide targeted fertilization solutions for citrus, berries, ornamental plants and alkaline soil farmland. 24-hour online technical guidance, free sample testing, and customized formula compounding suggestions help global customers completely solve crop iron deficiency chlorosis problems and improve planting economic benefits.
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