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Nitrogen management in wheat

2010
CC BY 4.0

Research organisation
Funding source
Hart Field Site Group
<abbr title='Grains Research and Development Corporation'>GRDC</abbr>

Trial details

Researcher(s) Jeff Braun (the Mid-North High Rainfall Group)
Nick Poole (FAR)
Year(s) 2010
Contributor Hart Field Site Group
Trial location(s) , SA
, SA
Nitrogen management in wheat locations
Aims
  • To compare how different nitrogen strategies effect crop growth, grain yield and protein.
  • To maintain yield and quality, while reducing the risks associated with excess early crop growth.
  • To evaluate the performance of crop sensors for measuring crop growth and predicting crop responsiveness to N.
Key messages
  • With a soil nitrogen (N) content of 103 kg N/ha at sowing, Mace wheat yielded 3.1 t/ha with no N fertiliser applied and contained 6.6% protein.
  • Optimum gross margins were recorded with 75 kg N/ha, though none of the N levels up to 100 kg N/ha reached 9% protein.
  • Yield response was greatest for N application timings at sowing, GS31, or a split application between GS31 and GS39.
  • A crop sensor was used to measure in season nitrogen responsiveness and was able to predict the optimal N rate.
Lead research organisation Hart Field Site Group
Host research organisation N/A
Trial funding source GRDC SFS00017
Related program N/A
Acknowledgments

This trial was funded by GRDC (SFS 00017) in collaboration with Nick Poole (Foundation for Arable Research NZ) and the Mid-North High Rainfall Group (Mick Faulkner and Jeff Braun).
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Fertiliser : Application Method
Trial type Experimental
Trial design Randomised,Replicated,Blocked

2010

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

2010

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
, SA Not specified
, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
, SA Chromosol
, SA Chromosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year SA SA
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000

Climate

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

SA

SA

SA

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SA

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Some data on this site is sourced from the Bureau of Meteorology

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.

Trial report and links

2010 trial report



Trial last modified: 09-12-2019 20:35pm AEST