| Dataseries | Frequency | Unit | Begin | End | Data source | |
|---|---|---|---|---|---|---|
| Potassium sulfate | CIF France [QE619] | Monthly | € / kg potassium oxide | 2012-01-31 | 2020-05-31 | ACCESS THE DATASERIES | |
| Potassium sulphate, free at farm | Netherlands [QE6XA] | Monthly | € / 100 kg | 1990-01-31 | 2020-04-30 | ACCESS THE DATASERIES |