Magnesium Sulfate Monohydrate (MgSO₄·H₂O) delivers a concentrated, highly soluble source of magnesium and sulfur, specifically engineered for modern farming systems. With significantly higher nutrient density than traditional heptahhydrate forms, it offers superior logistics efficiency and application precision. This essential fertilizer corrects magnesium deficiencies rapidly, enhances chlorophyll production, and improves crop quality across a wide range of agricultural and horticultural applications.

I. Scientific Advantages

• High Magnesium Concentration
  Contains 27% MgO and 22% sulfur, nearly double the magnesium content of heptahhydrate, reducing storage and transportation costs while delivering more nutrients per kilogram.
• Rapid Plant Availability
  Fully water-soluble formulation ensures immediate uptake by roots or leaves, correcting deficiency symptoms within days.
• Dual-Nutrient Synergy
  Provides both magnesium—the central atom of chlorophyll—and sulfur in sulfate form, essential for protein synthesis and enzyme activation.
• pH Compatibility
  Maintains optimal nutrient availability across a wide pH range (5.0–8.0), making it suitable for diverse soil types.

II. Precision Application Guidelines

Soil Application

• Rate: 10–25 kg/ha for magnesium-deficient soils
• Method: Broadcast and incorporate before planting; banding near root zone improves efficiency
• Timing: Apply at early growth stages or as indicated by soil tests

Foliar Spray

• Concentration: 1–2% solution (10–20 g/L water)
• Timing: Early morning or late afternoon to maximize absorption
• Frequency: 1–3 applications at 10–14 day intervals for severe deficiencies

Fertigation and Hydroponics

• Dosage: 25–100 ppm magnesium in nutrient solutions
• Benefits: Precise, continuous supply with minimal waste
• Compatibility: Works with all irrigation systems without clogging

Specialty Uses

• Seed treatment: 0.5–1.0% solution for improved germination
• Organic farming: OMRI-listed grades available
• Livestock feed: Supplementation grade available

III. Technical Specifications

• Chemical Formula: MgSO₄·H₂O
• Magnesium (Mg): ≥ 17.0% (27% MgO equivalent)
• Sulfur (S): ≥ 22.0% (as sulfate)
• Solubility: 710 g/L at 20°C
• pH (1% solution): 5.5–7.5
• Moisture: ≤ 0.5%
• Heavy Metals: Within FAO/WHO limits

IV. Documented Performance Benefits

• Deficiency Correction: Visible reversal of interveinal chlorosis within 5–7 days of foliar application
• Yield Enhancement: 15–30% yield increase in magnesium-responsive crops (potatoes, sugar beets, oil palms)
• Quality Improvement: 2–3° Brix increase in fruits, better tuber firmness, enhanced grain protein
• Stress Resilience: Improved drought and heat tolerance through optimized photosynthesis

V. Competitive Advantages Over Heptahydrate

• Higher Nutrient Density: 40% less product required for same magnesium application
• Reduced Logistics Costs: Lower freight, storage, and handling expenses
• Better Flowability: Free-flowing powder minimizes caking during storage
• Faster Dissolution: 20% quicker solubility in cold water
• Lower Moisture Absorption: Extended shelf life in humid climates

VI. Why Choose Our Magnesium Sulfate Monohydrate?

• Premium Quality: Consistent high purity, low heavy metals, and guaranteed analysis
• Versatile Applications: Suitable for soil, foliar, fertigation, and hydroponic systems
• Technical Expertise: Backed by agronomic support for customized recommendations
• Sustainable Production: Manufactured with energy-efficient processes and minimal environmental impact

Ordering and Support

Available in 25 kg bags, 1-ton big bags, and bulk shipments. Contact our technical team for crop-specific advice, soil test interpretation, and application planning.