K+S·Macronutrients
NPK 5-21-21
NPK 5-21-21 — a granular NPK fertilizer with, per the maker, a high phosphorus and potassium content for field crops, for application at sowing or in pre-sowing cultivation.
Main advantages
- Grade 5-21-21 — high phosphorus and potassium content
- Fully available nutrients — per the maker
- Kieserite (MgSO4·H2O) — basis of effect per the maker
- 100–300 kg/ha — at sowing or in pre-sowing cultivation
Overview
About this product
NPK 5-21-21 — a granular NPK fertilizer for field crops, which the maker describes as a fertilizer with a high phosphorus and potassium content. The nutrients are fast-dissolving and fully available; the water-soluble phosphorus, per the maker, ensures development of a strong root system at the early stages.
The maker names natural kieserite (MgSO4·H2O) as the basis of effectiveness, and the potassium has a low salt index. It is applied at 100–300 kg/ha at sowing, in pre-sowing cultivation or as early feeding on all soil types regardless of pH.
Application
Rate, timing and crops
Rate
Field crops
- Application rates
- 100–300 kg/ha at sowing, in pre-sowing cultivation or as early feeding
- Timing
Sowing
Pre-sowing cultivation
- Conditions
- The maker recommends it for all soil types regardless of pH
- Crops
- Field crops
Figures from the manufacturer, K+S. Source page
Specifications
Nutrient composition
| Type | NPK Complex |
|---|---|
| Nitrogen (N) | 5% |
| Phosphorus (P₂O₅) | 21% |
| Potassium (K₂O) | 21% |
Composition
| |
| Form | Granular |
| Application | Soil |
| Target Crops | Field crops |
| Manufacturer | K+S |
Vendor offers
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Questions & answers
What farmers ask most
- Rates depend on crop, prior history, soil-analysis results, and current soil nutrient status. A typical NPK complex on cereals is 150–300 kg/ha. Use the NPK calculator on adam.ua or consult an agronomist for an exact dose.
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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.