Sean Mason (University of Adelaide) Glenn McDonald (University of Adelaide)
Year(s)
2015
Contributor
Hart Field Site Group
Trial location(s)
Pinery, SA
Aims
To quantify the economic benefit to farmers of:
applying high application rates of phosphorus (P) on moderate buffering soils (phosphorus buffering index PBI) across a range of sites with different yield potentials, and
comparing three-four common wheat and barley varieties to assess their Phosphorus Use Efficiency (PUE).
Key messages
Economic gains can be made by applying higher than typical replacement P rates on soils with the ability to fix applications of P.
Highest gross margins are obtained by growing the most suitable variety for your region assuming P nutrition is corrected.
Lead research organisation
School of Agriculture, Food and Wine - The University of Adelaide
Host research organisation
N/A
Trial funding source
SAGIT UA1201
Related program
N/A
Acknowledgments
The authors thank SAGIT for the financial assistance that supports this research (project code UA1201).
P as MAP (10:22) @ 0, 5, 10, 20, 30 and 50 kg P/ha. Urea was used to balance N inputs so each treatment had an application of 22 kg N/ha applied at sowing.
No observed climate data available for this trial. Derived climate data is
determined from trial site location and national weather sources.
Pinery SA
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.
