Magnesium Sulphate Heptahydrate

Magnesium Sulphate Heptahydrate (MgSO4·7H2O)

Magnesium Sulphate Heptahydrate (MgSO4·7H2O) can dissolved in water quickly and applied to crops at the root or foliage throughout the growing season. It can be applied more frequently than common granular fertilizers that application to the soil.
Magnesium Sulphate Heptahydrate (MgSO4·7H2O) provides not only 16 units of magnesia, it also has 12 units of sulfur, so it particularly suitable for soil lack of sulfur and magnesium, magnesium & sulfur hungry crops. Magnesium Sulphate Heptahydrate (MgSO4·7H2O) can improve the water retention, yield, nutrient value, taste, color, texture and disease resistance of crops.
For soil application, Magnesium Sulphate Heptahydrate (MgSO4·7H2O) can be apply to most kind of soil with dry farming, especial for saline-alkaline and poor drainage of arid area, and with soil application in tunnel or greenhouse, but prohibit apply to paddy soil (silt loam)and the soil in flooding (anaerobic) conditions, magnessium ion easy leaching and the sulfate will be reduce to hydrogen sulfide and poisoned the root of crops.
Magnesium Sulphate Heptahydrate (MgSO4·7H2O) Powder easy soluble in water and can be apply as top dressing fertilizer by foliar spray or ditch irrigation, but not suitable for drip irrigation, for the sulfate ion will reacting precipitate with the calcium and magnesium ion in irrigation water to plug the dripper/emitter. Magnesium Sulphate Heptahydrate (MgSO4·7H2O) Powder also can not be using for hydroponic crops for the sulfate in water will be reduce to hydrogen sulfide and poisoned the root of crops.
For foliar spray, Magnesium Sulphate Heptahydrate (MgSO4·7H2O) is easy absorbed by the leaf of crops and quickly effect in a week, and spraying should be done with correct concentration and spraying time should before 9:00am or after 4:00pm (6:00pm in summer) except with all kinds of extreme weather such as heavy rain, intense light and megathermal.
Long-time application by Magnesium Sulphate Heptahydrate (MgSO4·7H2O) will cause soil acidification and compaction.
Magnesium Sulphate Heptahydrate (MgSO4·7H2O) should be stored in cool, dry, clean and well ventilated roofed warehouse with moisture-proof foundation in the piles up to 8-10 layers of bags@ 25kg.