AOLANSU Agricultural Magnesium Sulfate is a high-quality magnesium fertilizer developed for modern crop production. It is mainly supplied in Magnesium Sulfate Heptahydrate (MgSO₄·7H₂O) and Magnesium Sulfate Monohydrate (MgSO₄·H₂O) forms, providing crops with highly soluble magnesium and sulfur nutrients.
Manufactured by Shandong AOLANSU Environmental Protection Technology Co., Ltd. in China, the product is produced through controlled crystallization and purification processes. Strict inspection is carried out on raw materials, nutrient content, and impurity levels to ensure stable quality for agricultural applications worldwide.
With excellent water solubility, low impurity content, and reliable nutrient availability, AOLANSU Agricultural Magnesium Sulfate helps correct magnesium deficiency, improve crop photosynthesis, and support better crop quality and yield performance.
Magnesium is an essential element in chlorophyll formation and plays an important role in photosynthesis and enzyme activation. When crops suffer from magnesium deficiency, symptoms such as yellow leaves, slow growth, poor fruit development, and reduced yield may occur.
AOLANSU Agricultural Magnesium Sulfate provides rapidly available magnesium to crops. With effective MgO content reaching ≥25%, it helps restore chlorophyll levels, improve nutrient conversion efficiency, and promote healthier plant growth throughout different cultivation stages.
Magnesium deficiency frequently occurs in sandy soils, acidic soils, and highly weathered agricultural land. After application, Agricultural Magnesium Sulfate helps replenish magnesium reserves in soil and improves nutrient balance around the root zone.
The product can be applied together with conventional fertilizers, supporting better nutrient absorption and reducing problems caused by magnesium shortage, such as uneven crop development and poor fruit quality.
Due to its excellent compatibility and water solubility, AOLANSU Agricultural Magnesium Sulfate can be used for various agricultural applications, including:
Field Crops: Rice, wheat, corn, soybean and other grain crops.
Economic Crops: Cotton, oil crops, tobacco, tea and other commercial crops.
Fruit and Vegetable Crops: Citrus, grapes, apples, tomatoes, peppers, cucumbers and other horticultural crops.
AOLANSU controls product quality through multiple production stages, including raw material selection, crystallization control, nutrient analysis, and finished product inspection.
The finished fertilizer features uniform crystals, excellent solubility, and low levels of heavy metals and unwanted impurities. These characteristics make it suitable for large-scale farming, greenhouse cultivation, and professional agricultural projects.
Apply Agricultural Magnesium Sulfate during soil preparation or the crop growing period. Mix evenly with soil to improve magnesium availability in the root zone.
Recommended dosage:
Field crops: 30–60 kg per mu depending on soil conditions and crop requirements.
For crops showing magnesium deficiency symptoms, dissolve the fertilizer in water and apply through foliar spraying. A 1%–2% solution is commonly used, with repeated applications according to crop growth conditions.
Because of its excellent water solubility, the product can be applied through drip irrigation or other fertigation systems, allowing magnesium nutrients to reach crop roots efficiently.
A commercial citrus orchard in Florida experienced magnesium deficiency caused by long-term crop production and nutrient imbalance. The main symptoms included yellowing leaves, reduced photosynthetic activity, and inconsistent fruit size.
To improve crop performance, the growers applied AOLANSU Agricultural Magnesium Sulfate through foliar spraying during the fruit expansion period. A diluted magnesium sulfate solution was applied at regular intervals as part of the orchard's nutrient management program.
After continuous application, the orchard observed healthier leaf color, improved plant growth, and more uniform fruit development. The growers reported better nutrient balance and improved fruit quality compared with previous cultivation seasons.
This practical application demonstrates the value of magnesium supplementation in intensive fruit production systems where stable nutrient supply is essential for maintaining crop performance.
| Parameter | Specification |
| Product Name | Agricultural Magnesium Sulfate |
| Chemical Formula | MgSO₄·7H₂O / MgSO₄·H₂O |
| CAS No. | 7487-88-9 |
| Appearance | White crystalline powder or granular solid, odorless and free from visible impurities |
| Purity | ≥98.5% |
| Magnesium Content (MgO) | ≥25.0% (Heptahydrate); ≥39.0% (Monohydrate) |
| Solubility | High water solubility, suitable for soil application and fertigation |
| Moisture Content | ≤1.0% (Heptahydrate); ≤0.5% (Monohydrate) |
| Heavy Metal (Pb) | ≤0.001% |
| Iron (Fe) | ≤0.002% |
| Chloride (Cl⁻) | ≤0.02% |
| pH Value (1% Solution) | 5.5-7.5 |
| Particle Size | 1-4mm granular; 80-100 mesh powder; customized specifications available |
| Packaging | 25kg PE-lined woven bags, 50kg drums, 1000kg bulk bags |
| Storage Condition | Store in a dry, cool and ventilated environment. Avoid moisture and direct sunlight. |
| Shelf Life | 24 months under recommended storage conditions |
| HS Code | 2833210000 |
As a professional agricultural fertilizer manufacturer in China, AOLANSU follows strict quality management procedures to ensure every batch meets customer requirements.
All incoming materials are checked for purity, moisture content, and impurity indicators before entering production. This helps maintain stable nutrient performance from the beginning.
During crystallization and processing, key production parameters are monitored to ensure consistent crystal structure, solubility, and product appearance.
Before shipment, samples from each production batch are tested for magnesium content, sulfur content, moisture, particle size, and heavy metal levels.
For international customers, AOLANSU provides COA (Certificate of Analysis), MSDS, packing information, and related export documents to support smooth customs clearance and global distribution.
AOLANSU understands that agricultural customers have different purchasing requirements. We provide flexible supply options for distributors, wholesalers, and large farming projects.
Factory Direct Supply:
Direct cooperation with the manufacturer helps customers obtain stable quality products and competitive supply conditions.
Flexible Packaging Options:
Standard packages include 25kg bags, 50kg drums, and 1000kg bulk bags. Customized packaging and private labeling services are available according to customer requirements.
Stable Production Capacity:
Professional production management ensures reliable supply during peak agricultural seasons and supports long-term cooperation with overseas buyers.
International Logistics Support:
Products can be supplied to agricultural markets in Southeast Asia, Africa, Europe, North America, and other regions with professional export handling.
A1: Agricultural Magnesium Sulfate is mainly used to correct magnesium deficiency in crops. When plants lack magnesium, symptoms such as yellowing leaves, weak growth, poor photosynthesis, and reduced fruit quality may appear. By supplying available magnesium and sulfur nutrients, the product helps restore healthy plant growth and improves nutrient balance.
A2: Yes. Agricultural Magnesium Sulfate can be applied to a wide range of crops, including cereals, vegetables, fruit trees, tea plants, and economic crops. It is especially recommended for crops with high magnesium demand, such as citrus, grapes, tomatoes, potatoes, and leafy vegetables.
A3: The main difference is their water content and magnesium concentration. Magnesium Sulfate Heptahydrate has higher solubility and is widely used in general agricultural applications, while Magnesium Sulfate Monohydrate contains a higher proportion of magnesium and is suitable for situations requiring higher nutrient concentration.
A4: Yes. Agricultural Magnesium Sulfate can be used together with many common fertilizers. However, compatibility testing is recommended before mixing with concentrated fertilizer solutions or other agricultural chemicals to ensure optimal performance.
A5: Store the product in a dry, ventilated area away from moisture and direct sunlight. Proper storage helps maintain product flowability, prevents caking, and ensures stable quality during long-term transportation and storage.
AOLANSU is a professional fertilizer manufacturer in China specializing in agricultural nutrient solutions. We focus on stable product quality, controlled production processes, and reliable international supply services.
Our Agricultural Magnesium Sulfate is produced under strict quality management procedures, with every batch inspected for nutrient content, physical properties, and impurity levels before delivery.
For global agricultural distributors, importers, and farming enterprises, AOLANSU provides:
• Reliable Manufacturing Capability
Stable production processes and quality control systems support long-term supply partnerships.
• Customized Product Solutions
Different specifications, packaging options, and fertilizer solutions can be adjusted according to regional agricultural requirements.
• Export Experience
Professional export procedures, complete documentation, and logistics coordination help customers purchase agricultural fertilizers efficiently.
• Agricultural Application Support
Our team provides guidance on product selection, application methods, and fertilizer usage according to different crop conditions.
With reliable quality, competitive supply capability, and professional service, AOLANSU Agricultural Magnesium Sulfate supports farmers and agricultural partners in achieving more efficient and sustainable crop production.
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(North of Dongwei Group, West) Houwei Village, Changshan Town, Zouping City, Binzhou, Shandong Province, China
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