Ammonium Sulfate Fertilizer 21-0-0+24S
Ammonium Sulfate Fertilizer
High-Quality Ammonium Sulfate Fertilizer for Enhanced Crop Performance
- 21% Nitrogen (N) + 24% Sulfur (S)
- Fast-Available Nitrogen with Essential Sulfur
- Supports Healthy Plant Growth & Higher Yield Potential
- Improves Protein Formation and Nutrient Efficiency
Uniform Granules for - Reliable Field Application
Suitable for Grains, Oilseeds, Cotton, Vegetables & Specialty Crops
Product Details
Ammonium Sulfate (AS Fertilizer, 21-0-0+24S) is a highly efficient nitrogen and sulfur fertilizer designed to optimize crop nutrition, improve soil chemistry, and maximize agricultural productivity.
With 21% ammonium nitrogen (NH₄⁺) and 24% sulfate sulfur (SO₄²⁻), it delivers a rapid and balanced nutrient supply, making it one of the most reliable fertilizers for high-efficiency crop production systems.
Unlike urea-based fertilizers, ammonium sulfate offers lower nitrogen volatilization losses and provides immediately available sulfur, which is critical for protein synthesis, chlorophyll formation, and enzyme activation.Specifications
| Parameter | Specification |
|---|---|
| Product Name | Ammonium Sulfate Fertilizer |
| Nutrient Formula | 21-0-0+24S |
| Nitrogen (N) | ≥21% (Ammonium-N) |
| Sulfur (S) | ≥24% (Sulfate-S) |
| Chemical Formula | (NH₄)₂SO₄ |
| Appearance | White crystalline / granular |
| Solubility | Fully water-soluble |
| Hygroscopicity | Low |
| pH Effect | Strong acidifying fertilizer |
| CAS No. | 7783-20-2 |
Key Features & Benefits
1. Balanced Nitrogen & Sulfur Nutrition
Provides 21% nitrogen and 24% sulfur to support vigorous crop growth, protein synthesis, and improved nutrient utilization efficiency.
2. High Nutrient Availability
Contains readily available ammonium nitrogen and sulfate sulfur for rapid crop uptake and consistent performance throughout key growth stages.
3. Improves Soil Fertility
Particularly effective in alkaline and calcareous soils, helping enhance micronutrient availability and optimize nutrient absorption.
4. Premium Granule Quality
Uniform particle size, high hardness, low dust, and excellent spreading performance ensure efficient field application and reduced handling losses.
5. Supports Higher Yield & Crop Quality
Promotes stronger root development, healthier plant growth, improved crop uniformity, and greater yield potential across a wide range of crops.
6. Reliable Global Supply
Manufactured under strict quality control standards with stable product quality, export-ready packaging, and dependable worldwide delivery.
Application & Usage
Target Crops
- Cereals: Corn, Wheat, Rice, Barley
- Industrial Crops: Cotton, Sugarcane
- Oil Crops: Soybean, Canola
- Vegetables: Tomato, Pepper, Leafy greens
- Fruit Crops: Citrus, Grapes
👉 Particularly recommended for sulfur-deficient soils, which are increasingly common due to reduced atmospheric sulfur inputs.
Application Methods
- Basal Application: Soil incorporation before planting
- Top Dressing: Rapid nitrogen supplementation
- Fertigation: Suitable for drip & sprinkler systems
- Fertilizer Blending: Ideal raw material for NPK formulations
Field Crops (Corn, Wheat, Rice)
Vegetable Cultivation (Tomatoes, Cucumbers, Peppers)
Fruit Tree Cultivation (Grapes, Citrus, Apples)
Horticulture & Lawns
Packaging & Storage
- Standard Bags: 25kg / 50kg
- Jumbo Bags: 500kg / 1000kg
- OEM / Private Label: Custom branding, bag size, and NPK ratio
Storage
- Store in a cool, dry, ventilated area
- Protect from moisture, direct sunlight, and rain
- Seal opened bags to prevent caking
- Store on pallets, away from incompatible chemicals
Ammonium Sulfate Certificate
Frequently Asked Questions
Ammonium sulfate is a nitrogen (N) and sulfur (S) fertilizer used to promote plant growth, increase yield, and correct sulfur deficiency. It supports chlorophyll formation, protein synthesis, and improves nutrient uptake in crops.
It is highly effective in alkaline and calcareous soils because it has an acidifying effect. It helps lower soil pH and improves the availability of nutrients such as phosphorus, iron, and zinc.
It is suitable for corn, wheat, rice, soybeans, canola, potatoes, and vegetables. It is especially effective for sulfur-demanding crops and helps improve protein content and crop quality.
Compared with urea, ammonium sulfate provides both nitrogen and sulfur, reduces nitrogen volatilization loss, performs better in alkaline soils, and improves nitrogen use efficiency and crop quality.
It improves soil fertility by supplying stable ammonium nitrogen and sulfate sulfur. It also helps release nutrients in alkaline soils by gradually lowering soil pH, improving overall nutrient availability.
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Why Choose Risso® Ammonium Sulfate?
Risso® Ammonium Sulfate (21-0-0 + 24S) is a high-efficiency nitrogen and sulfur fertilizer designed to improve crop growth, yield, and nutrient balance. It provides readily available ammonium nitrogen and sulfate sulfur to support chlorophyll formation, protein synthesis, and overall plant development. It improves nitrogen use efficiency, reduces nutrient loss compared with urea, and performs well in alkaline and sulfur-deficient soils. It is suitable for cereals, vegetables, and oilseed crops and is widely used to enhance soil fertility and achieve stable agricultural productivity.
