Chelated Manganese EDTA Fertilizer
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- $ 29.99
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- $ 29.99
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- $ 28.99
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Chelated Manganese EDTA Fertilizer (13% Manganese)
Restore vibrant plant health with our premium Chelated Manganese EDTA Fertilizer. This professional-grade formula delivers 13% chelated manganese for maximum bioavailability, rapidly correcting interveinal chlorosis and enzyme deficiencies. Essential for photosynthesis, nitrogen metabolism, and disease resistance in all crops.
Deficiency Correction Timeline
Perfect For These Applications
Common Manganese Deficiency Problems? We've Got Solutions
🌿 Corrects Interveinal Chlorosis
13% chelated manganese rapidly fixes yellowing between leaf veins while veins stay green.
⚡ Activates Key Enzymes
Essential for photosynthesis, nitrogen metabolism, and formation of critical plant compounds.
💧 Superior Bioavailability
EDTA chelation ensures manganese remains available in soils up to pH 7.0, preventing lockup.
Quick Dosage Guide
Key Features & Benefits
- 13% Chelated Manganese: High concentration for efficient correction with lower application rates
- EDTA Chelation Technology: Protects manganese from soil reactions, maintaining availability in pH 4.0-7.0
- Critical for Photosynthesis: Activates enzymes in chloroplast formation and oxygen evolution
- Enhances Disease Resistance: Strengthens plant defenses against root rot and foliar diseases
- Improves Nitrogen Utilization: Essential for nitrate reduction and protein synthesis
- Fast-Acting Formula: Visible improvement in 7-14 days when applied as foliar spray
- Multiple Application Methods: Works in soil, foliar, hydroponic, and fertigation systems
- Professional Quality: Used by commercial growers for precision micronutrient management
Derived From
Manganese Ethylenediaminetetraacetate (Mn-EDTA)
Premium chelated form provides superior stability and plant availability compared to manganese sulfate.
pH Stability & Chelate Comparison
Chelate effectiveness varies by soil pH. EDTA-chelated manganese works best in acidic to neutral soils:
Application Rates & Directions
Below are recommended rates for various applications. For severe deficiencies, increase frequency rather than concentration.
🌱 Soil Application
| Crop Type | Application Rate | Notes |
|---|---|---|
| Vegetable Crops | 2-4 lbs/acre | Apply pre-plant or side-dress |
| Field Crops | 2-4 lbs/acre | Band or broadcast application |
| Tree & Vine Crops | 2-5 lbs/acre or 0.5-2 oz/inch trunk diameter |
Apply to root zone |
| Ornamental Shrubs | 1 tbsp (small) 1 tbsp/inch diameter (large) |
Work into soil |
| Turf | 0.5 lb/1000 sq ft or 2 lbs/acre |
Water in thoroughly |
🍃 Foliar Application
| Crop Type | Application Rate | Spray Volume |
|---|---|---|
| Citrus Trees | 1-2 lbs/100 gal | Cover spray (avoid bloom) |
| Other Trees & Vines | 1-2 lbs/acre | 25 gal minimum |
| Vegetables & Field Crops | 0.33-1.33 lbs/acre | 25 gal minimum |
| Turf | 1 tbsp/1000 sq ft | Thorough coverage |
💧 Hydroponics / Fertigation
| System | Concentration | Target ppm Mn |
|---|---|---|
| Hydroponics | Stock solution method recommended | 0.5-1.0 ppm |
| Fertigation | 1-2 lbs/acre/application | Monitor with testing |
📋 Stock Solution Method (Hydroponics)
For precise manganese dosing in hydroponic systems:
- Stock concentration: 1 oz (28g) per gallon water = ~970 ppm Mn
- Target range: 0.5-1.0 ppm Mn in reservoir
- Typical crops: Lettuce 0.5 ppm, tomatoes 0.5-1.0 ppm, peppers 0.5-0.8 ppm
Use calculator below for precise measurements based on your reservoir size.
Manganese Calculator
Safety & Compatibility
- Wear gloves and eye protection when handling concentrate
- Wash hands thoroughly after application
- Store in cool, dry location away from children
- Do not mix with undiluted acids or strong oxidizers
- See SDS for complete safety information
✓ Compatible
- Most NPK fertilizers
- Other chelated micros
- Calcium nitrate
- Magnesium sulfate
- Most pesticides
⚠ Use Caution
- Phosphoric acid (dilute first)
- High-calcium solutions
- Copper-based fungicides
✗ Avoid
- Strong acids (undiluted)
- Strong oxidizers
- Highly alkaline materials
Grow With Confidence
Important details on quality, returns, sustainability, and charitable efforts:
Product Quality Guaranteed
- All products manufactured in California, USA
- Tested by independent third-party laboratories
- Registered with California Dept. of Food and Agriculture (CDFA)
- Rigorously tested to ensure products are free from heavy metals
90-Day Money-Back Guarantee
If you're not completely satisfied, we offer a 90-day money-back guarantee. Simply return the unused portion in its original packaging, and we'll process a full refund. View return policy →
Environmental Responsibility
We're committed to sustainable practices:
- Recyclable packaging materials
- Precise nutrient formulation to reduce runoff
- Support for eco-friendly farming methods
Charitable Contributions
1% of all profits support our foundation, focused on improving educational opportunities for children.
Documents
Frequently Asked Questions
What are the signs of manganese deficiency in plants?
Manganese deficiency presents distinct visual symptoms:
- Interveinal chlorosis: Yellowing between leaf veins while veins remain green (appears on middle-aged leaves, unlike iron which affects youngest leaves)
- Gray or tan spots: Small necrotic spots on severely affected leaves
- Delayed maturity: Later maturation and lower yields
- Poor root development: Reduced root growth affects overall vigor
- Reduced disease resistance: Increased susceptibility to root rot and foliar diseases
Most susceptible crops: Soybeans, wheat, oats, potatoes, sugar beets, citrus, and many vegetables. Symptoms typically appear in high pH soils (above 6.8) or organic soils where manganese becomes unavailable.
How is chelated manganese better than manganese sulfate?
Chelated manganese EDTA offers several advantages:
- pH stability: Remains available up to pH 7.0 (sulfate precipitates above pH 5.5)
- No soil tie-up: Protected from reactions with phosphates, carbonates, and organic matter
- Faster uptake: 3-5x better absorption through roots and leaves
- Lower application rates: More efficient means less product needed
- Tank mix compatible: Mixes with most fertilizers and pesticides
- Longer residual: Stays available in soil longer
The EDTA chelation creates a protective shield around manganese ions, preventing soil lockup while allowing easy plant uptake.
When and how should I apply manganese fertilizer?
Timing:
- Preventive: Apply pre-plant or at early growth stages
- Corrective: Apply as soon as symptoms appear
- Cool soils: Symptoms often appear in cool, wet springs - apply when soils warm
Methods (in order of effectiveness):
- Foliar spray: Fastest correction (1-2 weeks), 0.5-1 lb/acre in 20+ gal water
- Soil application: Longer lasting, 2-5 lbs/acre banded near seed
- Seed treatment: Preventive measure for susceptible crops
- Fertigation: Maintain 0.5-1.0 ppm in nutrient solution
Best practices: Test soil pH (availability drops above pH 6.5), apply with starter fertilizer, avoid over-liming, and monitor tissue levels (optimal: 20-300 ppm depending on crop).
How do I distinguish manganese deficiency from iron deficiency?
Both cause interveinal chlorosis, but key differences help identify the problem:
| Characteristic | Manganese Deficiency | Iron Deficiency |
|---|---|---|
| Leaves affected | Middle-aged leaves first | Youngest leaves first |
| Chlorosis pattern | Diffuse, tan/gray spots develop | Distinct green veins, yellow interveinal |
| Soil conditions | High pH, organic soils, cool/wet | High pH, calcareous soils |
When in doubt, a tissue test provides definitive diagnosis. Optimal tissue Mn: 20-300 ppm; optimal tissue Fe: 50-300 ppm.
Pairs Well With
Have Questions?
Our fertilizer experts can help you determine if Mn EDTA is right for your soil conditions and recommend the optimal application strategy.