The paint leaves a mark on the rump of each ewe with whom the ram mates. Lack of a mark tells the farmer which ewes should remain longer with the ram. Sometimes thick paint is applied directly to the ram's chest rather than using a harness. This wears off more quickly and must be renewed regularly. A herbicide that will remain in the soil and continue to destroy weeds long after it is applied.
Ring roll A roller towed behind a tractor.
It is made up of separate rings of heavy steel threaded onto a central bar, rather like beads on a string. Sometimes called a Cambridge roll, it is used to flatten a seed bed. Rough grazing Grazing on natural, unmanaged grass and other vegetation growing on mountain slopes, moorland etc. Set-aside Land that arable farmers must take out of production for one or more years. In exchange for setting aside the land from production the farmer receives a grant from the European Union.