The Effect of Crop Establishment System On the Nitrogen Use Efficiency of Winter Wheat In Ireland.

James C. Brennan1, Dermot Forristal1, Richard Hackett1 and Tomas McCabe2, (1)Crop Science, Teagasc - the Agricultural and Food development authority, Carlow, Ireland, (2)School of agriculture and food science and veterinary medicine, University College Dublin, Dublin 4, Ireland