Bulk Manganese Sulfate for Micronutrient Fertilizer Blending
Short Product Description
Bulk Manganese Sulfate for Micronutrient Fertilizer Blending provides a stable and water-soluble manganese source with Mn content typically 31–32%. It is suitable for large-scale fertilizer production, including NPK blending and foliar formulations. Controlled impurities ensure compatibility with multi-nutrient systems.

Technical Specifications
| Parameter | Typical Value |
|---|---|
| MnSO₄·H₂O Purity | ≥ 98% |
| Manganese (Mn) Content | 31–32% |
| Moisture | ≤ 0.5% |
| Particle Size | 80–200 mesh (customizable) |
| Bulk Density | 0.9–1.3 g/cm³ |
| Iron (Fe) | ≤ 0.05% |
| Calcium (Ca) | ≤ 0.3% |
| Magnesium (Mg) | ≤ 0.3% |
| Lead (Pb) | ≤ 10 ppm |
| Copper (Cu) | ≤ 5 ppm |
| Zinc (Zn) | ≤ 5 ppm |
Key Features
- High Mn content ensuring consistent micronutrient delivery in fertilizer blends
- Controlled Fe, Ca, Mg levels to prevent nutrient antagonism in soil and solution
- Low heavy metals (Pb, Cu, Zn) supporting regulatory compliance for fertilizers
- Uniform particle size for efficient blending in bulk fertilizer production
- Bulk Manganese Sulfate for Micronutrient Fertilizer Blending optimized for NPK and compound fertilizer systems
Applications
- NPK fertilizer production – stable manganese source for granular and powder blending
- Foliar fertilizers – fully water-soluble for spray formulations
- Micronutrient premix – consistent trace element input in multi-nutrient systems
- Soil application fertilizers – corrects manganese deficiency in crops
- Bulk Manganese Sulfate for Micronutrient Fertilizer Blending used in large-scale fertilizer manufacturing
Problems This Product Solves
- Low manganese availability in alkaline soils → improves Mn supply for plant uptake
- Nutrient imbalance due to high Fe contamination → low Fe grade enhances efficiency
- Incompatibility in multi-nutrient blends → controlled Ca and Mg levels improve formulation stability
- Heavy metal compliance risks → low Pb and trace metals meet fertilizer regulations
- Poor mixing uniformity → consistent particle size ensures even distribution
Packaging & Supply
- 25 kg kraft paper bags with PE liner
- 1 MT jumbo bags available for bulk supply
- Palletized export packaging
- 20GP / 40HQ container shipment
- Sample available for formulation testing
Customization & Technical Support
- Adjustable Mn content based on fertilizer formulation needs
- Low-iron grade available for sensitive crops and high-end fertilizers
- Custom particle size for blending or solubility optimization
- Technical support for NPK and foliar fertilizer formulation
FAQ
1. Why use manganese sulfate instead of manganese oxide in fertilizers?
Manganese sulfate offers significantly higher solubility and bioavailability compared to oxide forms. This ensures faster plant uptake and more efficient correction of manganese deficiencies.
2. How do Fe, Ca, and Mg impurities affect fertilizer performance?
Excess iron can interfere with micronutrient uptake, while calcium and magnesium may cause formulation imbalance. Controlled impurity levels improve nutrient efficiency and compatibility in blends.
3. Is Bulk Manganese Sulfate for Micronutrient Fertilizer Blending suitable for foliar spray?
Yes, it is highly water-soluble and suitable for foliar formulations. Proper particle size and low impurities ensure good dissolution and spray stability.
4. What are the limits for heavy metals like Pb?
Lead and other heavy metals are strictly controlled (Pb ≤ 10 ppm) to meet international fertilizer safety standards and environmental regulations.
5. How should manganese sulfate be stored?
Store in a dry, ventilated environment away from moisture. Proper storage prevents caking and maintains product stability during long-term use.