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Magriculture is an agricultural-grade magnesium sulfate heptahydrate (Epsom salt) in a 50 lb bag, carrying 9.5% magnesium and 12.5% sulfur. It dissolves readily into clear solutions, which makes it suited to fertigation, hydroponic reservoirs and foliar sprays. It is OMRI listed, so it fits certified organic programs. Compared with generic Epsom salt, the draw is the documented analysis and organic listing rather than a different chemistry.
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Lowest price we've seen: $29.90 on Nov 11 at West Coast Horticulture. Tracked across 1 store since Nov 11.
Magriculture Magnesium Sulfate Heptahydrate (MgSO4·7H2O) is an agricultural-grade source of magnesium and sulfur for professional growers. It is highly soluble in water and makes clear solutions. It is OMRI listed for certified organic production.
Magnesium is the central element in the chlorophyll molecule and is important for photosynthesis and energy conversion. It matters especially in sandy soils, low-CEC soils, and programs high in potassium or ammonium nitrogen.
It is compatible with most soluble nutrient programs, except concentrated calcium or phosphorus solutions. It can be used in hydroponic nutrient solutions, fertigation (center pivot, drip/trickle, micro-jet), and foliar spray programs. It can also be applied as a soil amendment for magnesium-deficient fields.
