Nitrogen and Phoshorus
Phosphorus use efficiency in wheat and barley
Glenn McDonald, Rob Wheeler, Kenton Porker Bill Bovill, Alan McKay, Alison Smith
The farm-gate phosphorus balance of sheep grazing systems maintained at three contrasting soil fertility levels
Richard J. Simpson, Adam Stefanski, David J. Marshall, Andrew D. Moore and Alan E. Richardson
Expanding the use of Diffusive Gradients in Thin-Films (DGT) for assessing phosphorus requirements of different crop types
Sean Mason, Ann McNeill and Mike J. McLaughlin
Sulphur-enhanced triple superphosphate as a substitute for single superphosphate
Graeme Blair
Effect of in-season moisture on carbon, nitrogen and phosphorus in alkaline, semi-arid soils
Claire McMahon, Roger Armstrong, Therese McBeath and Mike McLaughlin