High-Purity Magnesium Sulfate for Fertilizer Use | Reliable China Supplier
? What is Magnesium Sulfate?
Magnesium sulfate (MgSO₄) is an important inorganic salt used extensively in the fertilizer industry. It provides two essential nutrients: magnesium (Mg) and sulfur (S), both of which are vital for plant development and agricultural productivity.
Available mainly as magnesium sulfate heptahydrate (MgSO₄·7H₂O), it is highly water-soluble, making it ideal for various fertilizer formulations.
? Function of Magnesium in Plants
Magnesium is the core component of chlorophyll, enabling plants to convert sunlight into energy through photosynthesis.
It activates enzymes necessary for carbohydrate, protein, and fat formation.
Deficiency symptoms include interveinal chlorosis, stunted growth, and leaf drop.
? Importance of Sulfur
Sulfur is a building block for amino acids like cysteine and methionine.
It contributes to protein synthesis, enzyme function, and oil formation.
Sulfur deficiency results in pale green leaves, delayed maturity, and reduced yield.
? Advantages of Magnesium Sulfate in Fertilizer
✅ Completely water-soluble
✅ Quick nutrient uptake
✅ Suitable for all soil types and crops
✅ Blends easily with most NPK fertilizers
✅ Improves nitrogen and phosphorus efficiency
? Application Methods
| Method | Description |
|---|---|
| Soil Application | Ideal for pre-plant or side-dress in fields with low magnesium |
| Foliar Spray | Used in 1–3% solutions to quickly correct deficiencies |
| Fertigation | Efficient in greenhouse or drip irrigation systems for precise nutrient delivery |
? Recommended Crops
Magnesium sulfate is suitable for a wide range of crops:
Vegetables: tomato, pepper, potato, spinach
Fruits: citrus, banana, grape, apple
Cash crops: cotton, coffee, tobacco
Grains: wheat, corn, rice
? Typical Specifications
Fertilizer Grade Magnesium Sulfate Heptahydrate (MgSO₄·7H₂O):
| Parameter | Specification |
|---|---|
| Appearance | White crystalline powder or granules |
| Purity (MgSO₄·7H₂O) | ≥ 99.5% |
| Magnesium (Mg) | ≥ 9.8% |
| Sulfur (S) | ≥ 12.9% |
| Solubility in Water | 100% |
? Packaging Options
| Packaging Type | Net Weight |
|---|---|
| PE/PP Woven Bags | 25 kg |
| Kraft Paper Bags | 25 kg |
| Jumbo Bags | 500–1000 kg |
| Customized OEM Bags | Available |
All packages are moisture-proof and suitable for international shipping.
? About Jiangsu Khonor Chemicals Co., Limited
As a professional chemical exporter, Jiangsu Khonor Chemicals Co., Limited specializes in high-purity fertilizer additives including magnesium sulfate. We serve agricultural customers in Asia, Africa, South America, and Europe.
Our advantages:
Stable supply and competitive price
Fast delivery with flexible logistics support
Professional documentation and export services
OEM labeling and custom packaging available
Free samples for quality testing
? Conclusion
Magnesium sulfate is a cost-effective and efficient solution for correcting magnesium and sulfur deficiencies in agriculture. Its excellent solubility and compatibility with other nutrients make it a staple in both conventional and modern farming.
If you're looking for a trusted supplier of fertilizer-grade magnesium sulfate, Jiangsu Khonor Chemicals Co., Limited is your reliable partner. Contact us today for bulk orders, quotations, and technical support.
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