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Magnesium Sulphate Heptahydrate



Magnesium sulphate heptahydrate is a two-component fertiliser in crystalline form. It is characterised by a high content of magnesium (MgO) of 16.0% and sulphur (SO3) of 32%, fully available to plants. The fertilizer is fully soluble in water, without any impurities or dust. Magnesium sulphate heptahydrate is perfectly suited for foliar fertilisation, fertigation and hydroponic cultivation systems.

Magnesium sulphate heptahydrate enables rapid and efficient fertilisation of plants with important nutrients. Magnesium is a component of chlorophyll which is often in short supply in both the soil/ substrate and the plants themselves, resulting in decreased photosynthesis efficiency. Magnesium is also an activator of many enzymes and participates in the regulation of water management in plants. Sulphur, along with nitrogen, is an important building block of amino acids and proteins. It is often in short supply in soils. As a mobile nutrient susceptible to leaching, it has to be regularly supplemented. High concentration of the fertiliser makes it possible to meet the needs of even the most demanding plants. In case of magnesium and sulphur deficiencies, the product allows for their quick supplementation. It is recommended for preventive and emergency fertilisation of all crops.


25 kg, 1,000 kg



Nutrients Symbol Content [% by weight]
Water-soluble magnesium oxide MgO 16,0
Water-soluble sulphur trioxide SO3 32
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