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Ammonium sulphate AS21 select is a nitrogen and sulphur fertiliser intended for fertilising winter and spring crops. Fertiliser is recommended to be used in spring, for top dressing of winter crops, especially winter oilseed rape and winter cereals. In spring crops, the fertiliser is best used before sowing, in spring.
PFC 1(C)(I)(a)(i): Straight solid inorganic macronutrient fertiliser
Fertiliser formula: N (S) 21 (+60) / 21 (+24)
Granulometry: Prills. 70% of the product is in the form of prills measuring 3,55-6,3 mm. Max. 3% of the product passes through the sieve sized 1 mm.
Bulk density: 1,04 kg/dm3
Total nitrogen N: 21%
Ammoniacal nitrogen N: 21%
Sulphur trioxide SO3 soluble in water: 60% (24% S)
Product components:
CMC 11 – Ammonium sulphate (CAS 7783-20-2)
Ammonium sulphate AS21 select is a fertiliser for pre-sowing and top dressing applications.
Approximate doses of Ammonium sulphate AS21 select in kg/ha
|
Crop |
Dose |
|
|
Winter cereals |
80-120 |
|
|
Spring cereals |
80-100 |
|
|
Winter oilseed rape |
autumn |
100-150 |
|
spring |
200-250 |
|
|
Maize |
120-150 |
|
|
Sugar beet |
120-150 |
|
|
Potato (harvested at full physiological maturity)* |
80-100 |
|
|
Cruciferous vegetables |
200-250 |
|
|
Grasslands on mineral soils (meadows and pastures) |
80-120 |
|
The amount of the dose and the timeline of application of the fertiliser should be determined on the basis of: plant nitrogen and sulfur demand (unit intake x assumed crop yield per ha), plant condition, soil properties. Top up the nitrogen dose.
Ammonium sulphate AS21 select should be transported ensuring that the product is protected against water, atmospheric precipitation, direct sunlight, and damage to the packaging. The product is not subject to RID and ADR regulations.