Response of six wheat varieties to varying N nutrition – Spring Ridge and Moree 2012

Abstract

Key findings • Suntop[PBR] appears to behave similarly to EGA Gregory[PBR] in terms of both yield and grain protein accumulation, which means that the N removal on a per hectare basis is equivalent to other varieties. • EGA Gregory[PBR] has the same NUE as most other bread wheat commercially available. • LongReach Spitfire[PBR] appears unique in the fact that, unlike EGA Gregory[PBR], even when it achieves higher yields it is still able to maintain protein concentration, giving it the potential to remove more N per hectare. • Limited responses from in-crop N applications reported here highlights the risk associated with the reliability of in-crop rainfall to make use of these applications in the northern region.