Understanding How Much Nitrogen Used By Pasture Comes from Soil or Applied Fertiliser to Improve the Long-Term Sustainability of Australian Dryland Dairy Pasture Systems.

Helen Suter1, Shu Kee Lam2, Charles Walker3 and Deli Chen2, (1)500 Yarra Boulevard, University of Melbourne, Richmond, VIC, AUSTRALIA, (2)School of Agriculture and Food, The University of Melbourne, Parkville, Victoria, Australia, (3)Incitec Pivot Fertilizers, North Shore, Australia