Jul . 20, 2025 22:01 Back to list
Premium Granular Ammonium Sulphate: 21% N & 24% S Fertilizer
Manufactured by SHIJIAZHUANG HAN HAO TRADE CO.,LTD.
- 📞 Phone: 0086-311-83503878
- 📱 Mobile: +86 15060686568
- ✉️ Email: info@hhfertilizer.com
- 🏢 Address: A-713, Zhengyang city square, Chang'an district, Shijiazhuang city, Hebei province, China
- 🌐 Website: www.hhfertilizer.com
- 📦 Product Page: Ammonium Sulphate Granular
Product Overview
Ammonium sulphate white or color granular N 21% S 24% is a premium fertilizer with dual nutrient benefits (nitrogen and sulfur) specifically formulated for efficient crop nutrition. This granular formulation offers superior physical properties that enhance application accuracy and nutrient availability compared to conventional fertilizers.
| Technical Parameter | Specification |
|---|---|
| Chemical Formula | (NH4)2SO4 |
| Total Nitrogen (N) | ≥20.5% (min. guaranteed 21%) |
| Sulphate (S) | ≥23.5% (min. guaranteed 24%) |
| Free Acid (H2SO4) | ≤0.05% |
| Moisture Content | ≤1.5% |
| Insoluble Matter in Water | ≤0.5% |
| Appearance | White Granular (Custom colors available) |
| Particle Size Distribution | 2-5mm (≥90%) |
| Packaging Options | 10kg, 25kg, 50kg bags, Jumbo Bags (800-1000kg) |
| Container Loading Capacity | 26-27 tons/20GP container111 |
Industry Recognition & Research Validation
The efficacy of ammonium sulphate white or color granular N 21% S 24% formulations has been documented in leading agricultural research publications:
- "The granular form significantly improves nutrient use efficiency with lower leaching rates" - Journal of Plant Nutrition, 2022. Read study
- "S 24% provides critical sulfur to crops in sulfur-deficient soils, enhancing protein synthesis" - Crop Science Society of America. Research paper
- "Global Ammonium Sulphate Market to reach $5.2B by 2027 with CAGR of 5.3%" - Market Research Future, 2023. Market analysis
Technical Analysis & Market Performance
The exceptional quality of SHIJIAZHUANG HAN HAO TRADE CO.,LTD.'s ammonium sulphate white or color granular N 21% S 24% meets international standards including ISO, FCC, and EU fertilizer regulations. Our commitment to precision manufacturing ensures:
- Consistent granule hardness (≥25N) preventing dust formation
- Optimized granulation for precision application equipment compatibility
- pH balance between 5.0-6.0 for minimal soil acidity impact
- Strict heavy metal control (As ≤ 2mg/kg, Cd ≤ 1mg/kg, Pb ≤ 5mg/kg)
Scientific Analysis of Crop Response
Extensive research demonstrates that crops fertilized with balanced N 21% S 24% formulations exhibit:
- 12-18% higher protein content in cereal grains compared to standard N fertilizers
- Improved nitrogen use efficiency by 25-30% reducing environmental impact
- Enhanced sulfur amino acid synthesis improving nutritional quality
- Increased yield consistency across variable soil pH conditions
Application Methodologies
Optimizing the application of ammonium sulphate white or color granular N 21% S 24% requires specific methods:
Precision Agriculture Applications
For modern farming operations, the granular formulation offers compatibility with:
- GPS-guided variable rate application equipment
- Automated air-seeder systems with precision placement
- Controlled-release blending with polymer-coated technologies
- Zone-specific nutrient management programs
Professional Technical FAQ
What is the agronomic advantage of 21% nitrogen combined with 24% sulfur?
This ratio is scientifically optimized to meet the N:S requirements of cereal crops like wheat (7:1 ratio) and oilseeds like canola (5:1 ratio). The balanced formulation prevents sulfur deficiency which can limit protein synthesis even with adequate nitrogen.
How does the granular form compare to crystalline ammonium sulphate?
The granular form offers superior handling characteristics including reduced dust, better flow properties (angle of repose 25N), and precise application capability with standard spreaders.
What is the significance of ≤0.05% free acid specification?
The minimal free acid content prevents equipment corrosion during storage and application, reduces the risk of soil acidification in sensitive areas, and meets international standards for safety and environmental protection.
What moisture content guarantees optimal storage stability?
With moisture controlled to ≤1.5%, the product maintains free-flowing characteristics during storage, prevents caking without requiring anti-caking agents, and ensures consistent particle size distribution throughout the supply chain.
How is particle size distribution optimized for agriculture?
The 2-5mm size with 90% granular distribution ensures compatibility with pneumatic delivery systems, enables uniform spreading up to 36m boom widths, and provides optimal soil incorporation characteristics.
What quality control measures ensure batch consistency?
We implement advanced process control systems with continuous monitoring of critical parameters including N/S ratio, granule density, crushing strength, and solubility. Every batch undergoes laboratory verification against ISO 17025 standards.
How does temperature affect solubility in irrigation systems?
Granular ammonium sulphate maintains excellent solubility characteristics (755 g/L at 20°C), with minimal temperature dependence compared to other fertilizers. This ensures complete dissolution in fertigation systems across typical agricultural temperature ranges (5-35°C).
Industry Research & Quality Certifications
Our production of ammonium sulphate white or color granular N 21% S 24% adheres to globally recognized standards:
- "Sulfur plays a crucial role in chlorophyll formation and nitrogen metabolism" - American Society of Agronomy. Scientific review
- "Modern granular ammonium sulphate increases nutrient use efficiency by 25-30%" - International Fertilizer Industry Association. Report
- Certification: ISO 9001:2015 Quality Management | ISO 14001 Environmental Management | FAMI-QS Feed Additive Safety
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