Water-Soluble Manganese Sulfate for Foliar Spray Use
Short Product Description
Water-Soluble Manganese Sulfate for Foliar Spray Formulations is a high-purity MnSO₄·H₂O powder with 31–32% manganese content. It dissolves rapidly in water, ensuring efficient leaf absorption in foliar applications. Suitable for fertilizer manufacturers, liquid nutrient formulators, and large-scale agricultural operations.
Technical Specifications
| Parameter | Typical Value |
|---|---|
| MnSO₄·H₂O Purity | ≥ 98% |
| Manganese (Mn) Content | 31–32% |
| Water Solubility | ≥ 99% |
| Moisture | ≤ 0.5% |
| Particle Size | 100–200 mesh |
| 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
- Fully water-soluble for foliar spray systems, preventing nozzle blockage
- High Mn bioavailability compared to oxide sources for rapid deficiency correction
- Controlled Fe, Ca, Mg levels to avoid antagonism in micronutrient uptake
- Low heavy metals (Pb, Cd, As) for safe agricultural use
- Consistent particle size for stable dispersion in liquid formulations
- Suitable as Water-Soluble Manganese Sulfate for Foliar Spray Formulations in fertilizer blending
Applications
- Foliar fertilizers – rapid correction of manganese deficiency via leaf absorption
- Liquid fertilizer production – stable Mn source for suspension and solution formulations
- Crop nutrition programs – supports enzyme activation and photosynthesis
- Hydroponics and fertigation – fully soluble Mn input for nutrient solutions
- Micronutrient blends – compatible with multi-element foliar spray systems
- Water-Soluble Manganese Sulfate for Foliar Spray Formulations in precision agriculture
Problems This Product Solves
- Slow Mn uptake in soil → foliar application enables rapid absorption and correction
- Nutrient lock-up in alkaline soils → soluble Mn²⁺ improves availability
- Iron interference in micronutrient systems → controlled Fe content ensures efficiency
- Heavy metal contamination risks → low Pb and trace metals improve safety
- Poor spray uniformity → fine particle size ensures stable dissolution and coverage
Packaging & Supply
- 25 kg kraft paper bags with PE liner
- Palletized export packaging
- 20GP / 40HQ container shipment
- Samples available for formulation testing
Customization & Technical Support
- Adjustable Mn content (30%–32%)
- Low-iron grade available for sensitive formulations
- Custom particle size (powder or micro-granular)
- Technical support for foliar spray formulation and compatibility testing
FAQ
1. Why use Water-Soluble Manganese Sulfate for Foliar Spray Formulations instead of soil application?
Foliar application delivers manganese directly to leaf tissue, enabling faster correction of deficiencies. Soil-applied Mn can become immobilized, especially in high pH conditions.
2. How does manganese sulfate compare to manganese oxide (MnO)?
MnSO₄ is significantly more bioavailable due to its high solubility. Plants can absorb Mn²⁺ ions directly, while MnO requires conversion in soil, reducing efficiency.
3. What is the impact of Fe, Ca, and Mg impurities?
Excess Fe, Ca, and Mg can interfere with micronutrient balance and reduce manganese uptake. Controlled impurity levels ensure better formulation stability and plant absorption.
4. Are heavy metals like Pb a concern?
Yes. Strict control of Pb and other heavy metals is critical for agricultural safety and regulatory compliance. This product maintains low ppm levels to meet fertilizer standards.
5. Is it compatible with other foliar fertilizers?
Yes, it is generally compatible with most micronutrients and agrochemicals. A jar test is recommended before large-scale mixing to ensure stability.