Magnesium Fertilizers

Magnesium Fertilizers

 

fertilizers containing magnesium. Among the magnesium fertilizers are magnesium-potassium concentrate, containing 8-9 percent MgO and 17.7-19.0 percent K2O; epsomite (industrial MgSO4), containing not less than 17.7 percent MgO; ammoschoenite, (NH4)2SO4-MgSO4-6H2O, containing 10 percent MgO and 7 percent N; dolomite-ammonium nitrate, a mixture of CaMg(CO3)2 and NH4NO3, containing about 10 percent MgO, 17 percent N, and 14 percent CaO; serpentinite (finely pulverized rock), containing 32-43 per-cent MgO; and calcined magnesia, containing not less than 89 percent MgO, and also dolomite, fused magnesium phosphate, dunite, potassium magnesium sulfate, and kainite. The standard quantity of magnesium fertilizer applied to acid sandy and sandy-loam soils, which are particularly deficient in magnesium that is available to plants, is 20-40 kg of MgO per hectare. Magnesium deficiency is readily detected by observing certain characteristic external indications of crops.

References in periodicals archive ?
Small responses to potassium and magnesium fertilizers in central (Bulingwe 58%; 3.
Smithson PC, McIntyre BD, Gold CS, Ssali H, Night G and S Okech Potassium and magnesium fertilizers on banana in Uganda: yields, weevil damage, foliar nutrient status and DRIS analysis.
extracts processes and markets dolomite products including, among other things, granular magnesium fertilizers.