Bonn (dpa) - Mileage tractor convoys have provided in NRW for a number of traffic obstructions. That informed the police Münster as responsible authority for the federal state with Twitter. Nationwide farmers want to protest today against plans of the Federal Government, inter alia, for more conservation in agriculture and for the protection of groundwater from nitrate. In Bonn should be the largest rally. Motorways may not use the farmers upon arrival.