Terafon® Ammonium Sulfate Crystal Fertilizer
Premium Nitrogen and Sulfur for Healthy, High-Yield Crops


Ammonium Sulfate Crystal (NH₄)₂SO₄
Nitrogen Content (N): ≈ 21%
Sulfur Content (S): ≈ 24%
Appearance: White crystalline powder or fine crystals
Crystal Size: 0.1–1 mm
Application: Ideal for cereals, vegetables, fruit trees, greenhouse crops, and NPK fertilizer blending
Ammonium Sulfate Crystal Detailed Specifications
Terafon® Ammonium Sulfate Crystal is a premium, highly water-soluble fertilizer supplying both nitrogen (≈21%) and sulfur (≈24%) for optimal crop growth. Its fine crystalline form ensures fast nutrient release, supporting rapid uptake through roots or foliar application. Ideal for sulfur-deficient or alkaline soils, this fertilizer enhances plant vigor, promotes protein synthesis, improves yield quality, and maintains long-term soil fertility.
Composition & Specifications
| Parameter | Typical Value |
|---|---|
| Chemical Formula | (NH₄)₂SO₄ |
| Nitrogen (N) Content | ≈ 21% |
| Sulfur (S) Content | ≈ 24% |
| Appearance | White crystalline powder or fine crystals |
| Crystal Size | 0.1–1 mm |
| Solubility | 100% water-soluble |
| Moisture | ≤ 1.0% |
| pH (1% Solution) | ~5.5 (slightly acidic) |
| Grade | Agricultural grade |
Key Features & Benefits
Balanced N + S Nutrition: Provides essential nitrogen and sulfur for chlorophyll production, enzyme activity, and protein formation.
Fast Nutrient Availability: Fine crystals dissolve quickly, enabling rapid uptake for immediate crop response.
Soil pH Improvement: Slightly acidifies alkaline soils to enhance nutrient availability.
Enhanced Crop Growth: Supports stress resistance, stronger plant structure, and higher-quality yields.
High Solubility & Low Residue: Fully dissolves in water, suitable for fertigation, foliar feeding, and mechanized application.
- Cost-Effective & Efficient: Combines two essential nutrients in one product, reducing multiple applications and overall fertilization costs.
Applications
Field Crops: Wheat, rice, maize, barley, and oilseeds.
Horticulture: Vegetables, fruit trees, and greenhouse crops.
Foliar Feeding: Quick nutrient response for nutrient-stressed crops.
Soil Management: Corrects sulfur deficiency and improves nutrient availability in alkaline soils.
- NPK Fertilizer Blending: Ideal component in compound fertilizers for balanced nutrition.
Usage Guidelines
Determine application rates based on soil or tissue testing and crop nutrient requirements.
Apply crystals evenly using manual or mechanical spreaders.
Dissolve in water for fertigation or foliar application where rapid uptake is desired.
For alkaline soils, apply at early growth stages to utilize acidifying benefits.
- Store in a cool, dry, ventilated area; avoid moisture to maintain crystal integrity.
Packaging & Storage
Packaging Options: 25 kg / 50 kg bags; bulk or jumbo bags available.
Storage Conditions: Keep in a dry, well-ventilated warehouse; protect from humidity and direct sunlight.
Shelf Life: Maintains quality for extended periods under proper storage conditions.
Why Choose Terafon® Ammonium Sulfate Crystal
Terafon® Ammonium Sulfate Crystal is developed for growers and fertilizer blenders who require fast response, high purity, and reliable solubility.
High Purity & Stable Performance
Produced under strict quality standards to ensure consistent crystal structure and dependable field results.Designed for Rapid Nutrient Programs
Ideal for intensive cropping systems, fertigation, and foliar feeding where quick nutrient availability is critical.Excellent Mixing & Dissolution Behavior
Dissolves cleanly without residue, reducing clogging risks in irrigation systems and improving application efficiency.Flexible Use Across Crops & Systems
Performs reliably in open-field, greenhouse, and protected agriculture, adapting well to diverse fertilization strategies.Trusted Terafon Supply Capability
Supported by Terafon Fertilizer’s professional manufacturing, stable supply, and export-oriented packaging solutions.
Terafon® Ammonium Sulfate Crystal delivers speed, purity, and operational efficiency for modern, high-precision fertilization.
Why Choose Terafon for Your Fertilizer Needs
Premium Nitrogen & Sulfur Concentration
Terafon Ammonium Sulfate delivers high nitrogen (21%) and sulfur (24%) in a premium solid-fertilizer form, ensuring efficient nutrient supply with less bulk. This concentration helps reduce transport and storage costs while meeting crop demands.
Rapid Uptake & Uniform Delivery
With excellent granule uniformity and high solubility, Terafon Ammonium Sulfate supports rapid nutrient availability through broadcasting, banding or fertigation. Uniform granules allow consistent spreading and reliable root-zone absorption.
Quality & Soil-Health Assurance
Produced under strict quality standards, Terafon Ammonium Sulfate features low moisture and minimal impurities. This ensures stable storage, reduced caking, and better long-term soil health while supporting sustainable cropping systems.
Trusted Performance Worldwide
Terfaon has earned global recognition for advanced nutrient technology and dependable fertilizer solutions. Choosing Ammonium Sulfate from Terafon means selecting reliable, high-performance crop nutrition tailored to modern agriculture.
Optimize Your Crop Nutrition with Terafon
Contact us today to discover how Terafon’s high-quality fertilizers—including urea, coated urea, NPK, water-soluble, liquid, and humic acid—can boost soil fertility, enhance crop growth, and support sustainable agriculture.









