15/04/2011 (Agence Europe) - European potassium producers want increased duty on imports from Russia and Belarus. The European association of producers of potassium, a key farm input, has asked the European Commission to keep import duty in place for imports of potassium from Russia and Belarus in order to protect EU producers, explained industry sources this week. European producers are calling for the import duty on potassium, due to expire in the summer, to be extended for five months at...