Average milk yield was 31 litres/day at 4% butterfat and 3.3% protein. The soil health benefits from covering maize fields with grass over the winter are obvious, Llyr observes. “There is nothing worse than seeing a field doing nothing, a bare field doesn’t pay for itself,’’ Llyr points out. The Westerwolds seed costs £20/acre and Llyr reckons it would be a further £25/acre to drill if the farm didn’t have its own kit. “I wouldn’t leave any fields without grass now,’’ Llyr insists.