Grupa Azoty·Macronutrients
Straight nitrogen fertiliser with 21% N and 24% S (60% SO₃) in coarse macrocrystalline form. Feeds cereals, oilseed rape and maize.
Main advantages
About this product
Ammonium Sulphate AS 21 macro is a straight nitrogen fertiliser supplying 21% nitrogen in readily available ammonium form together with 24% sulphur (60% SO₃). The coarse macrocrystalline grade spreads evenly across the field. Nitrogen and sulphur work together to build protein and improve yield quality in cereals, oilseed rape, maize, sugar beet and grassland. Apply to soil before sowing or as a spring top-dressing, working it into moist soil for best uptake.
At a glance
Nutrient composition
Nitrogen fertiliser
Straight nitrogen fertiliser. Value is % N by mass, not an NPK blend.
Nitrogen (N)
21%
Vegetative growth, leaf mass
Application
Full specifications
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Questions & answers
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