Potassium Sulphate Granular Chloride Free Fertilizer for Crops, Bulk OEM Supply
- Model
- K2O50%
Item specifics
- Item
- Potassium Sulphate
- Packing
- PP+PE 9.5 net
- HS code
- 3105100090
- Molecular Weight
- 174.24
- Certificate
- ISO, SGS, CIQ, CCIC, Intertek
- Application
- Fertilizer
- Free sample
- yes
Review
Description
What is Potassium Sulphate Granular?
Potassium Sulphate Granular (K₂SO₄) is a premium chlorine-free potassium fertilizer, specifically engineered for crops sensitive to chloride. With a high concentration of soluble potassium (K₂O ≥50%) and sulfur (S ≥18%), it delivers essential nutrients for plant growth, yield enhancement, and quality improvement. Its uniform granular form (2-4mm) ensures easy application, reduced dust, and controlled nutrient release.
Core Features & Competitive Advantages
1.High Purity & Dual Nutrients
K₂O ≥50%, S ≥18% – Maximizes photosynthetic efficiency and protein synthesis.
Chloride-free (<1.5%) – Safe for chloride-sensitive crops (e.g., tobacco, fruits, potatoes).
2.Optimized Granular Structure
2.Optimized Granular Structure
Uniform granules (2-4mm): Anti-caking, dust-free, compatible with mechanical spreaders.
High solubility: Rapid nutrient availability without soil residue.
3.Quality Assurance & Compliance
Meets GB/T 20406-2017 standards; Heavy metals (Pb, As, Cd) strictly controlled.
Low moisture (<0.5%): Ensures long-term storage stability.
Stability & Functionality
1. Superior Physical Stability for Global Supply
Low Moisture & Anti-Caking
Low Moisture & Anti-Caking
Moisture content ≤0.3% (below industry average 1.5%), combined with spherical granule design (2-4mm), eliminates caking during long-term storage or maritime transport.
High Crush Strength
Granule hardness ≥25N (tested per ISO 8397), resisting breakdown in bulk handling and bag stacking.
2. Controlled Nutrient Release Functionality
2. Controlled Nutrient Release Functionality
Rapid Solubility + Low Salt Index
Dissolves completely within 120s (vs. 300s for powder), while salt index (SI=46) is 40% lower than氯化钾（KCl），preventing root burn in sensitive crops.
Sulfur Synergy Technology
Sulfur Synergy Technology
K₂O 50% + S 18% in sulfate form (SO₄²⁻), promotes synergistic uptake with nitrogen and phosphorus.
L-Lysine Powder：
Items | Standard |
Appearance | White Granular |
K2O | 50%min |
Cl | 1.5%max |
Moisture | 1.5%max |
Free acid | 1.5%max |
Forging (Rolling) Steel Balls specifications:
potassium sulphate
potassium sulfate fertilizer
potassium sulphate price
Application
1.Fruit & Vegetables
Enhances Brix level, color, and shelf-life (e.g., grapes, citrus, tomatoes).
2.Tobacco & Cash Crops
Improves leaf thickness, combustibility, and aroma (chloride-free advantage).
3.Hydroponics/Greenhouses
Ideal for precision fertilization due to low salinity index.
Applications & Solutions
Fruit cultivation
Apply 20kg per mu four weeks before harvest to enhance sugar content and color
Tobacco base
The chlorine-free formula enhances blade thickness and flammability
Hydroponic system
The low salt index is suitable for NFT/DFT irrigation
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FAQ
Q1: Why choose granular over powder potassium sulphate?
A: Granular form reduces dust loss by 90% and enables uniform field coverage, critical for large-scale mechanized farming. Our granules’ hardness (40-50N) withstands bulk shipping, reducing logistics costs by 7% compared to powder.
Q2: Is the higher potassium sulphate price justified compared to MOP?
A: While initial cost is 20% higher, ROI comes from: (1) 15-20% yield premium for chloride-sensitive crops; (2) Reduced sulfur additive costs; (3) Elimination of salt damage risks. Cost per kg of harvest drops by $0.18.
Q3: Can this granular potassium sulfate be used in organic farming?
A: Yes, OMRI-listed (Cert ID: XXXXX) with heavy metals below EU 2019/1009 limits. Approved for USDA/NOP and EU ECOCERT systems.
