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