Durum wheat variety response to nitrogen management and sowing time - Tulloona 2015

2015

Research organisaton
Funding source

Trial details

Researcher(s) Michael Dal Santo (NSW DPI)
Rick Graham (NSW DPI)
Stephen Morphett (NSW DPI)
Jim Perfrement (NSW DPI)
Year(s) 2015
Contributor Department of Primary Industries NSW
Trial location(s) Tulloona, NSW
Durum wheat variety response to nitrogen management and sowing time - Tulloona 2015 locations
Aims

To compare variety response with time of sowing (TOS) and nitrogen (N) management with the objective to develop variety recommendations and tactical agronomy guidelines. 

Key messages
  • Durum varieties displayed differential grain quality and yield responses to time of sowing (TOS) and nitrogen (N) management.
  • DBA AuroraA appears to offer good yield potential, but exhibits an increased risk of screenings with increasing rates of N application at sowing or when N is applied before stem elongation (GS31). It also appears to have an increased potential for lower grain protein concentrations (GPC) due to yield dilution under high yielding situations.
  • A strategy involving a split application of N at sowing and either GS31 or GS39, could reduce the potential for screening issues in DBA AuroraA while maintaining adequate GPC.
  • Findings from this experiment further highlight the need to sow appropriate variety maturity types within their recommended sowing windows.
     
Lead research organisation Department of Primary Industries NSW
Host research organisation N/A
Trial funding source GRDC DAN00167
Related program Variety Specific Agronomy Packages for southern, central and northern NSW
Acknowledgments

This research was co-funded by NSW DPI and GRDC under project DAN00167: Variety Specific Agronomy Packages for southern, central and northern NSW. Technical assistance provided by Jan Hosking, Peter Formann, Rod Bambach and Richard Morphett (all NSW DPI) is gratefully acknowledged. We finally thank Jack and Julia Gooderham for allowing us to conduct this experiment on their property ‘Myling’ near Tulloona in 2015.


Other trial partners Co-operator: Jack Gooderham
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Crop: Variety
  • Sowing: Timing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Tulloona 2015

Sow date 7 May 2015 7 May 2015 (TOS 1) and 6 June 2015 (TOS 2)
Harvest date 10 November 2015
Plot size Not specified
Plot replication Not specified
Fertiliser

70 kg/ha Granulock Z extra at planting 

Other trial notes

Treatments

Durum wheat:

Four commercially released varieties CaparoiA, DBA AuroraA, DBA LillaroiA and JandaroiA, and an advanced breeder’s line from the Northern Durum breeding program 190873 in a fully replicated, factorial design with six N treatments in total.

Nitrogen (N) rate:

0, 40, 80, 120 and two split applications 2 × 40 kg N/ha either at sowing and GS31 or at sowing and GS39, all applied as urea (46% N). All treatments were side banded at sowing, apart from the split applications, which had half applied at planting and half at stem elongation (GS31) or at flag leaf emergence (GS39) (total 80 kg N/ha).

Sowing date:

7 May and 6 June, in a split plot design with three replicates.

Download the trial report to view additional method/treatment information

Download results

Trial results Mean varietal grain yield averaged across nitrogen treatments for two times of sowing

@T1: TOS 1 (06-05-2015) @T2: TOS 2 (07-06-2015)
# Variety
Grain yield (t/ha) Grain yield (t/ha)
1 Caparoi 5.68 5.29
1 Caparoi 5.81 5.54
2 190873 6.89 5.79
2 190873 4.51 5.25
3 DBA Aurora 3.11 5.57
3 DBA Aurora
4 DBA Lillaroi
4 DBA Lillaroi
5 Jandaroi
5 Jandaroi

Grain yield t/ha


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Tulloona, NSW Vertisol
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Tulloona, NSW Vertosol
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 Tulloona NSW
2015 710.1mm
2014 683.0mm
2013 673.6mm
2012 675.5mm
2011 702.0mm
2010 733.1mm
2009 711.7mm
2008 709.7mm
2007 677.5mm
2006 644.9mm
2005 643.6mm
2004 648.5mm
2003 633.0mm
2002 602.6mm
2001 588.9mm
2000 595.6mm
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

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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.

Tulloona NSW

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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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

2015 trial report



Trial last modified: 23-09-2019 13:22pm AEST