UAPG·Macronutrients
Granular ammonium sulphate, AS N21,24
Granular ammonium sulphate, AS N21,24 — a compacted (NH4)2SO4 nitrogen fertilizer with 21% nitrogen and 24% sulphur for basal nutrition on neutral and alkaline soils.
Main advantages
- N 21% and S 24% — nitrogen and sulphur together
- Sulphur as sulphate ions — available to plants
- Incorporation to root depth — basal nutrition
- Oilseed rape, cabbage, legumes — respond well to sulphur
Overview
About this product
Granular ammonium sulphate, AS N21,24 — a nitrogen fertilizer and source of sulphur (NH4)2SO4: not less than 21% total nitrogen in dry matter and 24% sulphur in the form of sulphate ions, water not more than 0.3%, free sulphuric acid not more than 0.05%. The granules are obtained by mechanical compaction of crystalline ammonium sulphate.
It is applied for basal nutrition with incorporation to root depth on neutral and alkaline soils, and on acid podzolic soils its use is undesirable because of free sulphuric acid. Crucifers, oilseed rape, cabbage, legumes and rice respond especially well to sulphur.
With prolonged use the soil is limed periodically.
Application
Rate, timing and crops
- Timing
- Autumn, spring
- Method
Basal nutrition with incorporation to root depth
All root application methods
- Conditions
For neutral and alkaline soils
Undesirable on acid podzolic soils because of free sulphuric acid
- Crops
- CrucifersOilseed rapeCabbageLegumesRiceCerealsMaizeWinter oilseed rapeFruit and berry cropsSunflowerSoybeanSugar beetVegetable crops
Figures from the manufacturer, UAPG. Source page
Specifications
Nutrient composition
| Brand | UAPG |
|---|---|
| Type | Nitrogen |
Composition
| |
| Form | Granular |
| Flowability | 100% |
| Application | Soil, Root application |
| Target Crops | Brassicas, Rapeseed, Cabbage, Legumes, Rice, Cereals, Corn, Winter rapeseed, Fruit crops, Berry crops, Sunflower, Soybean, Sugar Beet, Vegetables |
| Origin country | China |
Vendor offers
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Questions & answers
What farmers ask most
- Rates depend on crop, prior history and soil analysis. Urea and other straight nitrogen grades are not an NPK complex: a cereal ballpark is often 100–250 kg/ha of product, but the exact dose is an agronomist's call.
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Product specifications are compiled from publicly available manufacturer sources and are provided for guidance only — confirm all details with the vendor before purchase. Brand names, logos and trademarks are the property of their respective owners; a listing on ADAM does not imply affiliation, sponsorship or endorsement.