Large numbers of tractors were heading to Berlin city centre on Monday morning for another demonstration by farmers who are angry at government plans to end tax breaks on diesel fuel. Honking tractors could be heard in several neighbourhoods. Other agricultural workers were also seen joining the protest. Around midday (1100 GMT) thousands of farmers from all over Germany plan to hold a rally at the iconic Brandenburg Gate against the end of diesel tax breaks for the agricultural sector, in a climax to their week of protests. Many tractors were already parked by the monument in the early mornin…