The farrier arrives. He’s listening to Home Front, the daily drama serial about the First World War. His greatgrandfather was killed at the Somme. I know it’s time for my sandwich lunch with a Thermos of coffee when from the cab radio comes that familiar tune: ‘Dun dah dun dah dun dah dah’. I settle in for the repeat of last night’s The Archers. With its topical storylines, it’s a sort of agricultural college of the airwaves, so I spend the afternoon pondering Adam’s no-till cereals while ploughing.