OUTWINTERING COWS means Diarmuid Lynch has cut the expense of storing then spreading 14 weeks’ slurry.

Instead, he said, he only needed 365-days worth of dirty water storage. Keeping stock out in winter was not a pollution risk.

Their dung was high dry matter and a more natural way of spreading it, he added. “The grazing block gets muck applied naturally, not at 3000 gal/acre.”