Performance of second wheat under no-till full stubble retention (NTSR) using different drill opener and row spacings at Bungeet

2012

Research organisatons
Funding source

Trial details

Researcher(s) Nick Poole (FAR Australia)
Tracey Wylie (FAR Australia)
Year(s) 2012
Contributor Riverine Plains
Trial location(s) Bungeet, VIC
Performance of second wheat under no-till full stubble retention (NTSR) using different drill opener and row spacings at Bungeet locations
Aims

To evaluate the performance of different drill openers at a range or row spacings for second wheat (wheat on wheat) following canola to improve water use efficiency (WUE) in no-till cropping and stubble retention systems in spatially and temporally variable conditions in the Riverine Plains.

Key messages
  • Gauntlet wheat sown as the second wheat crop after canola yielded between 3.84–4.44t/ha with 232mm of growing season rainfall (Apr-Oct) and an estimated 118mm of stored water at sowing (total 350mm).
  • Moving from a narrow row spacing (22.5cm) to 30cm and 37.5cm row spacings reduced yield by 13% and 11% respectively in the 2012 season.  In 2011, moving from a 22.5cm spacing to 30cm and 37.5cm spacings reduced yield by 4% and 10% respectively for the second wheat trial grown in the same paddock.
  • It was estimated that the narrow row spacing (22.5cm) resulted in better water use efficiency (WUE) than the widest spacing (37.5cm), despite having a lower harvest index (44% vs 47%) than the widest rows.  
Lead research organisation Commonwealth Scientific and Industrial Research Organisation
Host research organisation Riverine Plains
Trial funding source GRDC
Related program National Water Use Efficiency Initiative
Acknowledgments

John Alexander


Other trial partners FAR Australia
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Sowing: Method
  • Sowing: Row Spacing
Trial type Experimental
Trial design Replicated

Bungeet 2012

Sow rate or Target density 85kg/ha
Sow date 22 May 2012
Harvest date Not specified
Plot size 44m x 3m
Plot replication 4
Fertiliser

85kg/ha MAP + Flutriafol + host farmer paddock management

Herbicide

host farmer paddock management

Insecticide

host farmer paddock management

Fungicide

host farmer paddock management

Other trial notes

Improved water use efficiency (WUE) in no-till cropping and stubble retention systems in spatially and temporally variable conditions in the Riverine Plains

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Treatment 2
Grain yield (t/ha) Total water use (mm) Establishment plants (plants/m2) Hectolitre weight (kg/hL) 1000 grain weight (g) Transpiration efficiency (kg/ha/mm) Harvest index (value) Protein (%)
1 Disc Opener 9" row spacing 4.44 11.1 238 79.8 44.5 21.56 39.2 9.8
2 Disc Opener 12" row spacing 3.84 9.6 190 82.1 44.8 18.59 33.8 10
3 Disc Opener 15" row spacing 4.12 10.31 143 81.7 45.1 22.89 41.6 10.1
4 Tine Opener 9" row spacing 4.44 11.12 245 82.2 44.2 21.07 38.3 9.8
5 Tine Opener 12" row spacing 3.9 9.75 173 80.8 45.4 23.53 42.8 10.1
6 Tine Opener 15" row spacing 3.78 9.46 144 82.4 45.6 22.54 41 10.4

Grain yield t/ha


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1000 grain weight g


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Establishment plants plants/m2


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Harvest index value


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Hectolitre weight kg/hL


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Protein %


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Total water use mm


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Transpiration efficiency kg/ha/mm


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Bungeet, VIC Loam over clay
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Bungeet, VIC Sodosol
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 Bungeet VIC
2012 407.1mm
2011 417.9mm
2010 396.9mm
2009 312.8mm
2008 353.1mm
2007 324.9mm
2006 372.6mm
2005 370.8mm
2004 320.2mm
2003 327.7mm
2002 330.4mm
2001 394.7mm
2000 370.7mm
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

Bungeet VIC 2012


Observed climate information

Rainfall trial gsr (mm) 232mm

Derived climate information

Bungeet VIC

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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

2012 trial report



Trial last modified: 03-09-2019 11:11am AEST