Crop sequences and brome grass

2014

Research organisaton
Funding source

Trial details

Researcher(s) De-Anne Ferrier (BCG)
Year(s) 2014
Contributor Birchip Cropping Group
Trial location(s) Chinkapook, VIC
Further information View external link
Crop sequences and brome grass locations
Aims

To determine the influence of break sequences (2011-2012) followed by consecutive wheat crops (2013-2014) on soil water, nitrogen, brome grass populations and profitability.

Key messages
  1. When sub-soil water is present, growing high value canola and legume break crops can be profitable in the Mallee.
  2. Where brome grass seed bank populations are high, break crop sequences of longer than two years are necessary to decrease numbers, and keep them down.
  3. The application of CLF herbicide chemistry is effective in reducing brome grass populations, but herbicide resistance will develop quickly if they are used repeatedly in the same paddock.
Lead research organisation Birchip Cropping Group
Host research organisation N/A
Trial funding source GRDC DAS0019
Related program Low Rainfall Collaboration Project
Acknowledgments

This project (DAS00119) was funded by GRDC through the Low Rainfall Collaboration Group. 


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

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Crop: Rotation
Trial type Experimental
Trial design Blocked

Chinkapook 2014

Sow rate or Target density 150 plants/m² (65kg/ha)
Sowing machinery

Knife points, press wheels, 30cm row spacing 

Sow date 1 May 2014 1 May 2014
Harvest date 17 November 2014 17 November 2014
Plot size Not specified
Plot replication Not specified
Fertiliser

Granulock Z @ 60kg/ha at sowing  

Herbicide

Pre-sowing     Glyphosate @ 1L/ha + TriflurX® @ 1.5L/ha + Avadex® Xtra @ 2L/ha    

In-crop            LVE 600 @ 350ml/ha + Lontrel™  @ 100ml/ha + Hasten™ @1 

Insecticide

Pests were controlled to best management practice.

Fungicide

Diseases were controlled to best management practices.

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

@T1: @T2: @T3: @T4:
# Treatment 1
Brome grass density (plants/m2) Brome grass density (plants/m2) Brome grass density (plants/m2) Brome grass density (plants/m2)
1 Wheat-wheat (nil control) 971 1014 3458 516
1 CLF wheat-CLF wheat (2 year herbicide control) 165 26 69 4
1 Wheat+Atlantis-CLF barley (2 year herbicide control) 458 173 88 18
1 Field peas-wheat (1 year break crop) 68 89 595 94
2 Chemical fallow-wheat (1 year break crop) 329 61 1005 66
2 CLF canola-vetch (2 year break crop) 43 9 199 29
2 TT canola-field pea (2 year break crop) 26 9 113 20
2 CLF wheat-chickpeas (1 year herbicide, 1 year break crop) 94 63 166 24
3 Chemical fallow-CLF canola (2 year break crop) 130 4 78 18
3 Vetch brown manure-CLF canola (2 year break crop) 53 0 44 5
3 Lupins-CLF canola (2 year break crop) 52 4 95 8
3 Oats/vetch hay- vetch (2 year break) 156 9 130 25
4 Medic-medic (2 year break) 95 0 243 36
4 Vol. pasture-vol. pasture (2 year break) 156 0 208 16
4 Chem fallow-chem fallow (2 year herbicide control) 69 17 139 21
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Brome grass density plants/m2


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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Chinkapook, VIC 0 - 10cm Sandy clay loam 6.70 18.00 0.38
Chinkapook, VIC 0 - 100cm Sandy clay loam 61.00
Soil conditions
Trial site Soil texture
Chinkapook, VIC Sandy clay loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Chinkapook, VIC Calcarosol
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 Chinkapook VIC
2014 388.1mm
2013 378.9mm
2012 416.2mm
2011 461.4mm
2010 452.6mm
2009 378.6mm
2008 369.0mm
2007 376.1mm
2006 376.8mm
2005 412.2mm
2004 371.0mm
2003 382.1mm
2002 351.6mm
2001 418.5mm
2000 395.6mm
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

Chinkapook VIC 2014


Observed climate information

Rainfall trial total (mm) 273mm
Rainfall trial gsr (mm) 155mm

Derived climate information

Chinkapook VIC

CAUTION: Trial site locality unknown; Climate data sourced from Birchip Cropping Group office location
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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

2014 trial report



Trial last modified: 16-07-2019 14:14pm AEST