Fully Dissolvable Granular Magnesium Sulfate with Heptahydrate

The core advantages lie in usability and performance stability. Extruded granules have uniform particle size (typically 2-5mm), strong anti-caking properties, and are less likely to break during storage and transportation. They cause no dust pollution during application, are compatible with mechanical fertilization and drip irrigation systems, and reduce nutrient loss in sandy soils. In contrast, powdered products are prone to caking, dust emission, and nutrient leaching with irrigation water.

It is suitable for crops with high magnesium requirements, including cash crops such as citrus, grapes, tomatoes, and peppers, as well as field crops like corn and wheat. It is particularly effective in preventing interveinal chlorosis in these crops. For field crops, the recommended basal application rate is 20-30kg per mu. For cash crops under drip irrigation, it can be diluted at a ratio of 1:500. Specific dosages can be adjusted based on soil magnesium content test results.

There is no need to worry. Although the extruded granules are compact, they can dissolve gradually in the digestive tract of livestock and poultry. When mixed with compound feed, their particle size matches that of feed ingredients, without affecting ingestion. Meanwhile, their hardness prevents breakage during transportation, which avoids uneven nutrient content and ensures stable magnesium levels per unit of feed.

The key is moisture prevention and ventilation. Magnesium sulfate heptahydrate contains crystalline water, and it is prone to moisture absorption and caking if stored in an environment with humidity exceeding 60% or in sealed, poorly ventilated conditions. It is recommended to store it in a dry, cool warehouse, with pallets placed under the product to prevent moisture. Opened packages should be sealed promptly to avoid long-term exposure to air.

Yes, it can be used in industrial wastewater treatment. Its granular form enables 'controlled dissolution.' The released magnesium ions after dissolution can combine with phosphate in wastewater to form precipitates, while adjusting water hardness. Additionally, it can assist in precipitating heavy metal ions, reducing pollutant concentrations in wastewater. Compared to powdered products, it avoids excessive local concentration and impurity formation caused by rapid dissolution.