Asia Potash Industry produces potassium sulfate in the following three forms:
Powder(Solopotash): Ideal for drip irrigation systems and NPK fertilizer industries requiring 100% water solubility and liquid potassium .
Granular: Suitable for agricultural use applications, particularly in saline soils.
Micronized: Specifically developed for use in the production of prefabricated gypsum panels and gypsum board industries.
A comparison table of Sanat Potas Asia’s potassium sulfate products based on the national standard is provided below.
Property | Granular Potassium Sulfate | Powdered Potassium Sulfate | Iran National Standard (ISIRI 128) |
Chemical Formula | K₂SO₄ | K₂SO₄ | K₂SO₄ |
Appearance | White Granules | White Powder | – |
Odor | Odorless | Odorless | Odorless |
K₂O Content (%) | 50 – 51.8% | 50 – 51.8% | Minimum 50% |
MgO Content (%) | 0 – 0.5% | 0 – 0.5% | Maximum 2% |
Cl Content (%) | 0.5 – 2% | 0.5 – 1% | Maximum 2% |
CaO Content (%) | 0 – 1% | 0% | Maximum 2.5% |
Sulfur (S) Content (%) | 17.5 – 18.3% | 18 – 18.3% | Minimum 17.5% |
NaCl Content (%) | 1 – 2.5% | 0.5 – 1.5% | Powder: 2% / Granular: 3% |
Moisture Content (%) | 0 – 0.15% | 0 – 0.15% | Maximum 1.5% |
pH | 4 ~ 5 | 4 ~ 5 | 4 – 5 |
Particle Size Distribution | (min 95%) 1–4 mm | (min 85%) 200 µm | Granular: (min 85%) 1–4 mmPowdered: (min 85%) 200 µm |
Bulk Density (at 25°C) | 1.416 g/ml | 1.419 g/ml | – |
Applications of Potassium Sulfate
Enhances Crop Quality and Yield: Improves the color, taste, and nutritional value of fruits, vegetables, and grains.
Boosts Photosynthesis and Plant Metabolism: Increases chlorophyll production and accelerates growth.
Increases Resistance to Environmental Stress: Helps reduce the effects of drought, salinity, and heat stress.
Reduces Diseases and Pests: Strengthens plant cell walls, increasing disease resistance.
Ideal for Saline Soils: Chloride-free, does not increase soil salinity.
Advantages of Using Potassium Sulfate in Agriculture
Potassium sulfate is widely used across a variety of agricultural crops:
Fruits and Citrus: Increases fruit size and quality, reduces cracking, and improves coloration.
Vegetables and Cucurbits: Improves leaf growth, taste, and enhance of marketability.
Field Crops: Boosts yields in wheat, rice, corn, and oilseeds.
Greenhouse and Ornamental Plants: Extends flower shelf life and improves leaf color and freshness.
Potassium Sulfate Application Guide in Agriculture
Potassium sulfate can be applied to a wide range of crops. The following table provides recommended application rates for different plant types:
Crop | Application Method | Recommended Rate |
Citrus | Pit fertilization – Fertigation – Foliar spray | Tree age × 100 gr per tree |
Grapes | Soil mixing – Fertigation | 150–200 gr per tree |
Melon/Watermelon | Soil mixing – Fertigation – Foliar spray | 100–150 kg/ha |
Cabbage family | Soil mixing – Fertigation | 150–200 kg/ha |
Onion | Soil mixing – Fertigation – Foliar spray | 50–150 kg/ha |
Lettuce | Soil mixing – Fertigation – Foliar spray | 100–200 kg/ha |
Pepper | Soil mixing – Fertigation – Foliar spray | 100–200 kg/ha |
Tomato (field) | Soil mixing – Fertigation | 150–200 kg/ha |
Potato | Soil mixing – Fertigation – Foliar spray | 100–150 kg/ha |
Sunflower | Soil mixing – Fertigation – Foliar spray | 100–150 kg/ha |
Soybean | Soil mixing – Fertigation – Foliar spray | 100–200 kg/ha |
Sugar beet | Soil mixing – Fertigation – Foliar spray | 100–200 kg/ha |
Sugarcane | Soil mixing – Fertigation – Foliar spray | 120–250 kg/ha |
Tea | Soil mixing – Fertigation – Foliar spray | 100–200 kg/ha |
Alfalfa | Soil mixing – Fertigation – Foliar spray | 100–200 kg/ha |
Barley | Soil mixing – Fertigation – Foliar spray | 100–150 kg/ha |
Corn | Soil mixing – Fertigation – Foliar spray | 100–200 kg/ha |
Wheat | Soil mixing – Fertigation – Foliar spray | 100–200 kg/ha |
Rice | Pit fertilization – Fertigation – Foliar spray | 100–200 kg/ha |
Olive | Pit fertilization – Fertigation – Foliar spray | Young trees: 30–50 gr /treeMature trees: 200–300 gr /tree |
Important Note: The precise application rate of potassium sulfate depends on soil type, regional climate, and specific crop needs. A soil test is recommended to assess the current nutrient status, based on which an agricultural expert can recommend the optimal dosage.
Packaging and Storage Conditions
Packaging: Supplied in 25 kg and 50 kg bags, as well as 1,000 kg jumbo bags.
Shipping: Nationwide delivery available across Iran.
Storage: Store in a cool, dry place away from moisture to maintain product quality.
Safety Recommendations for Using Potassium Sulfate
Proper use of potassium sulfate enhances agricultural crops productivity, but following safety precautions is essential:
Use of Protective Equipment: Always wear gloves, a mask, and safety goggles when handling the fertilizer to avoid skin contact and inhalation of dust.
Safe Storage: Keep in a cool, dry place away from direct sunlight. Avoid exposure to moisture and incompatible substances such as acids and strong oxidizers.
Caution in Handling: Potassium sulfate is not edible. Keep it out of reach of children and animals. In case of eye contact, rinse immediately with plenty of water and seek medical attention if necessary.
Proper Waste Management: Do not discard empty bags in the environment; follow environmental regulations for disposal.
Avoid Improper Mixing: To prevent unwanted chemical reactions, always consult with agricultural experts before mixing potassium sulfate with other fertilizers.
Following these recommendations, in addition to increasing safety, also maximizes the quality and efficiency of potassium sulfate.
Why Choose Asia Potash Industry co. Potassium Sulfate?
Benefits of Potassium Sulfate Asia Potash Industry include:
Very Low Chlorine Content (Below 1.5%): Ideal for salt-sensitive crops such as pistachios and grapes.
Enhanced Nutrient Uptake: Sulfur in the formula improves nitrogen and phosphorus absorption.
Highly Soluble – Perfect for Drip Irrigation (Solopotash): Fully dissolves in water without residue.
Increased Plant Resilience: Reduces the impact of environmental stresses and fungal diseases.
Improved Crop Quality and Shelf Life: Enhances color, taste, and marketability of fruits and vegetables.
Direct Supply with No Middleman: Guaranteed Best Price and Quality
Download Material safety Date Sheet (MSDS) Potassium Sulfate
To ensure safety, quality, and compliance, you can download the official documents below:
Material Safety Data Sheet (MSDS): Detailed safety and hazard information
Product Laboratory Analysis: Verified product quality and purity
For more information and free consultation, please contact our technical team.
Contact UsContact Us – Buy Potassium Sulfate at the Best Price
Asia Potash Industry co. one of Iran’s leading potassium sulfate manufacturers, offers high-quality products with:
High Purity and Guaranteed Quality
Chlorine-Free – Suitable for Sensitive Crops
Enhanced Nutrient Absorption through Sulfur
Improved Resistance to Stress and Fungal Diseases
Better Taste, Size, and Shelf Life of Produce
Direct Supply – Best Value for Money
Lab-Tested Before Distribution
Full After-Sales Support
Fast Nationwide Delivery
Bulk Orders with Special Discounts
FAQs
You can place your order via phone call, online request form onour website, or contacting our sales specialists directly.
Yes, we offer bulk supply of potassium sulfate in large volumes.
The price of this product depends on factors such as purchase volume, transportation costs, and market fluctuations.
Yes, it is suitable for most crops and is especially recommended for chloride-sensitive plants like pistachios and grapes.
Depending on the order size and destination, delivery typically takes between 1 to 7 business days.
Yes, our products are delivered to all cities across Iran.
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