Ammonium sulphate 21-0-0 + 57,5 SO₃
Ammonium sulphate (21-0-0-0 + 57.5 SO₃) is a high quality nitrogen fertilizer, combining 21% ammoniacal nitrogen (N) and 57.5% sulphur (SO₃) in the form of sulphate ion, readily available to plants.
This combination makes the fertilizer ideal for crops with high nitrogen and sulphur requirements, improving both nutrition and production quality.
Ammonium sulphate enhances vegetative growth and promotes protein synthesis, while sulphur helps create sulphur compounds that improve the taste, flavour and nutritional value of products.
Ammonia sulphate is ideal for alkaline, neutral and calcareous soils
In crystalline or granular form
Features and benefits
Ammonium sulfate (21-0-0 + 57.5 SO₃) is suitable for:
Cereals (wheat, barley, corn): Enhances vegetative growth and yield.
Industrial crops (cotton, sugar beets): Improves the quality of fibers and sugars.
Vegetables (onion, cabbage, potato): Enhances flavor, nutritional value and endurance.
Fruit trees (olives, citrus): Helps with nutrition during fruiting and improving quality.
Grapevines: Improves grape quality and yield.
Oilseed rape and other crops with high sulfur requirements.
Fixed nitrogen
Ammoniacal nitrogen is absorbed immediately and remains available for a longer period of time.
High sulfur content
It contributes to protein synthesis, improving quality and increasing plant resistance to stress.
pH adjustment
Suitable for alkaline soils, reducing alkalinity and improving nutrient availability.
Flexible application
Ideal for basic lubrication and surface application.
Indicative dosage (per acre) and methods of application:
Cereals (wheat, barley)
20-30 kg/ha in basic fertilization or superficially before flowering.
Corn
25-30 kg/hectare, applied at sowing and during growth.
Cotton
20-35 kg/hectare, before flowering.
Potato
25-30 kg/hectare, during planting and before tuber formation.
Onion and cabbage
10-12 kg/hectare, applied at planting and during growth.
Olives
1-2 kg/tree, early spring or before flowering.
Vines
10-15 kg/hectare, applied at the beginning of the growing season.