To evaluate the yield responses to different phosphorus regimes over time in regards to yield and quality.
Key messages
There are two nil treatment Reps, which will be used in future years to add a variable to the trial.
2011 was the first year there was a response to the treatments, with the double recommended rate of Phosphorus achieving a yield significantly higher than other treatments.
Although fertiliser costs were higher for the double rate application, the yield benefit still outweighed costs, though not significantly.
Vigour assessments during the season were inconsistent with treatments leading to a suggestion that establishment may have been as significant as treatments in a variableseason
Murray observed a colour difference during the season between the nil plots and the applied fertilizer plots
Lead research organisation
Mingenew-Irwin Group
Host research organisation
N/A
Related program
N/A
Acknowledgments
Many thanks to the Thomas family for the trial site, inputs and assistance.
No observed climate data available for this trial. Derived climate data is
determined from trial site location and national weather sources.
WA
SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to
construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol
16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.
