Sulfate d'ammonium

Ammonium sulphate combines 21% ammoniacal nitrogen and 24% sulphur (SO₃) in a single crystalline fertiliser. Ammoniacal nitrogen is held by the soil, so it is less prone to leaching than nitrate nitrogen, and sulphate sulphur is directly available to the plant.

• 21% nitrogen (N) in ammoniacal form, for vegetative growth
• 24% sulphur (SO₃): a nutrient involved in protein synthesis and crop quality
• Nitrogen held by the soil, less prone to leaching than nitrate nitrogen
• Acidifying effect: useful on calcareous or alkaline soils, to be monitored on soils that are already acid