Active stubble management to enhance residue breakdown and subsequent crop management

2015

Research organisatons
Funding source

Trial details

Researcher(s) Nick Poole, Tracey Wylie and Michael Straight (FAR Australia)
Year(s) 2015
Contributor Riverine Plains
Trial location(s) Site 2, Corowa, NSW
Henty, NSW
Site 2, Dookie, VIC
Site 3, Yarrawonga, VIC
Active stubble management to enhance residue breakdown and subsequent crop management locations
Aims

The project seeks to:

  • investigate, demonstrate and extend cultural practices that will assist growers to adopt no-till stubble retention (NTSR) in medium and higher-rainfall environments;
  • build on findings from the previous Riverine Plains Inc. Water Use Efficiency (WUE) project; and
  • extend the frontier of agronomic knowledge for crops grown in NTSR systems.
Key messages
  • A highly variable trial with no significant differences in monola dry matter (DM) accumulation, nitrogen uptake or yields due to subble management.
  • The 2014 cultivation treatments carried out before sowing the canola crop during the first year of the project significantly increased the yield of the following oat crop established using no-till stubble retention (NTSR).
  • The yield increase in the following oat crops was reflected in significantly more biomass accumulation by the flag leaf.
Lead research organisation Commonwealth Scientific and Industrial Research Organisation
Host research organisation N/A
Trial funding source GRDC
Related program Maintaining profitable farming systems with retained stubble
Acknowledgments

Thanks to the farmer co-operator, Peter Campbell (Henty, NSW).


Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop types Wheat
Canola
Barley
Treatment type(s)
  • Fertiliser: Rate
  • Stubble: Management
Trial type Experimental
Trial design Replicated

Corowa 2015 Wheat

Sow date 7 May 2015
Harvest date Not specified
Plot size 40m x 15m
Plot replication 4
Herbicide

host farmer paddock management

Insecticide

host farmer paddock management

Fungicide

host farmer paddock management

Henty 2015 Canola

Sow date 21 April 2015
Harvest date Not specified
Plot size 40m x 15m
Plot replication 4
Herbicide

host farmer paddock management

Insecticide

host farmer paddock management

Fungicide

host farmer paddock management

Dookie 2015 Canola

Sow date 12 May 2015
Harvest date Not specified
Plot size 40m x 18m
Plot replication 4
Herbicide

host farmer paddock management

Insecticide

host farmer paddock management

Fungicide

host farmer paddock management

Yarrawonga 2015 Barley

Sow date 13 May 2015
Harvest date Not specified
Plot size 40m x 18m
Plot replication 4
Herbicide

host farmer paddock management

Insecticide

host farmer paddock management

Fungicide

host farmer paddock management

Download the trial report to view additional method/treatment information

Download results

Trial results Effect of stubble management treatments on grain and growth parameters at Henty in 2015

# Treatment 1
Treatment 2
Oil (%) Grain yield (t/ha) Establishment plants (plants/m2) Protein (%) Moisture (%)
1 No till stubble retention 0 kg N/ha 44.5 1.24 42 19.1 5.4
2 No till stubble retention 40kg N/ha 41 1.32 43 21.7 5.1
3 Mulched 0 kg N/ha 43.6 1.44 34 20.6 5
4 Mulched 40kg N/ha 43.6 1.39 39 20.4 4.8
5 Cultivated (one pass) 0 kg N/ha 44.3 1.43 59 20.3 4.9
6 Cultivated (one pass) 40kg N/ha 43.7 1.35 62 20.8 4.8

Grain yield t/ha


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Establishment plants plants/m2


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Moisture %


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Oil %


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Protein %


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Trial results Effect of stubble management treatments on grain and growth parameters at Corowa in 2015

# Harvest index (value) Protein (%) Grain yield (t/ha) F-1 leaf area affected by yellow spot (%) Establishment plants (plants/m2) Hectolitre weight (kg/hL) Screenings (%) 1000 grain weight (g)
1 No till full stubble retention (control) 42.8 10.9 4.33 0.2 114 78.8 3.5 31.3
2 Cultivate (one passes) 40.4 11.4 4.18 0.2 118 78.7 3.2 36.1
3 Cultivate (one passes) + 40 kg N/ha 46.8 11.5 4.69 0.2 114 78.7 3.5 28.9
4 Burn 37.7 11.4 3.77 0.3 126 79.8 3.6 35.2

Grain yield t/ha


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1000 grain weight g


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Establishment plants plants/m2


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F-1 leaf area affected by yellow spot %


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Harvest index value


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Hectolitre weight kg/hL


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Protein %


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Screenings %


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Trial results Effect of stubble management treatments on grain and growth parameters at Yarrawonga in 2015

# Hectolitre weight (kg/hL) Screenings (%) 1000 grain weight (g) Establishment plants (plants/m2) Protein (%) Grain yield (t/ha)
1 NTSR (long stubble) 78.8 19.9 21.1 167 15.6 3.13
2 NTSR (long stubble) + 40 kg N/ha 78.5 21 21.1 178 15.6 3.2
3 NTSR (short stubble) 79.2 17.7 22.3 164 14.8 3.35
4 Straw Removed 78.3 22.6 21.1 185 14.9 3.03
5 Cultivate (one pass) 79 19.1 21.3 179 14.8 3.1
6 Cultivate (one pass) + 40 kg N/ha 78.9 22 21.3 177 15.7 3.05
7 Burnt 77.9 25.2 20.8 185 15 2.93

Grain yield t/ha


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1000 grain weight g


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Establishment plants plants/m2


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Hectolitre weight kg/hL


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Protein %


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Screenings %


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Trial results Effect of stubble management treatments on grain and growth parameters at Dookie in 2015

# Protein (%) Grain yield (t/ha) Hectolitre weight (kg/hL) Screenings (%) 1000 grain weight (g)
1 Long stubble 15 2.41 69.8 45.8 17.3
2 Short stubble 13.6 2.52 70.6 43.7 17.1
3 Cultivate (one passes) 12.9 2.39 68.1 47.3 16.4
4 Straw Removed 13.5 2.32 66.4 57.7 16.1
5 Burn 13.3 2.49 68.6 50.3 16.5

Grain yield t/ha


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1000 grain weight g


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Hectolitre weight kg/hL


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Protein %


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Screenings %


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 2, Corowa, NSW Red brown earth
Henty, NSW Red brown earth
Site 2, Dookie, VIC Not specified
Site 3, Yarrawonga, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 2, Corowa, NSW Sodosol
Henty, NSW Sodosol
Site 2, Dookie, VIC Sodosol
Site 3, Yarrawonga, VIC Sodosol
National soil grid Source
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

Site 2, Corowa NSW 2015


Observed climate information

Rainfall trial gsr (mm) 329mm

Henty NSW 2015


Observed climate information

Rainfall trial gsr (mm) 391mm

Site 2, Dookie VIC 2015


Observed climate information

Rainfall trial gsr (mm) 233mm

Site 3, Yarrawonga VIC 2015


Observed climate information

Rainfall trial gsr (mm) 266mm

Derived climate information

Site 2, Corowa VIC

Henty VIC

Site 2, Dookie VIC

Site 3, Yarrawonga VIC

Site 2, Corowa VIC

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Henty VIC

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Site 2, Dookie VIC

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Site 3, Yarrawonga 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 last modified: 28-11-2019 10:28am AEST