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Interaction of time of sowing and weed management on lupin yield

2007
CC BY 4.0

Research organisation
Liebe Group

Trial details

Researcher(s) Martin Harries (DAFWA)
Jo Walker (DAFWA)
Year(s) 2007
Contributor Liebe Group
Trial location(s) Winchester, WA
Interaction of time of sowing and weed management on lupin yield locations
Aims
  • To better understand the trade-offs between lupin yield and weed management when lupins are sown using different strategies; dry sowing vs delayed sowing.
  • To investigate if shielded spraying can effectively control the large weed populations that often arise after dry sowing.
Key messages
  • Spray-seed drift during shielded spraying damaged the lupin plants in this trial.
  • Lupins yielded well when sown in rows 50cm apart.
Lead research organisation N/A
Host research organisation N/A
Related program N/A
Acknowledgments

Thank you to the Liebe Group for suggesting trial treatments and help with trial management; Bruce White for hosting the trial; the Geraldton Research Support Unit for seeding and harvesting the trial and GRDC for continuing financial support.

  • Paper reviewed by Wayne Parker.
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Grain Legume: Lupins
Treatment type(s)
  • Herbicide : Type
  • Sowing : Row Spacing
  • Sowing : Timing
Trial type Experimental
Trial design Replicated

Winchester 2007

Sow rate or Target density 100 kg/ha
Sow date 23 April 2007 23/4/07 (Dry), 28/5/07 (Soon after rain), 26/6/07 (Delayed sowing)
Harvest date Unknown
Plot size 20m x 2m
Plot replication 4
Fertiliser

At seeding 100 kg/ha Superphos, deep banded
Herbicide

Immediately before each sowing knockdown and 1.5 L/ha Simazine 10/7/07: Select 250 mL/ha. 18/7/07: Shielded herbicide treatment applied to lupins sown on 23/4/07 and 28/5/07. 100 mL/ha Brodal® & 400 mL/ha Simazine directed onto row. 1.0 L/ha Spray-seed® between rows.18/7/07: Broadcast herbicide treatment applied to lupins sown on 23/4/07 and 28/5/07. 100 mL/ha Brodal® & 400 mL/ha Simazine. 31/7/07: Shielded herbicide treatment applied to lupins sown on 26/6/07. 100 mL/ha Brodal® & 400 mL/ha Simazine directed onto row. 1.0 L/ha Spray-seed® between rows. 31/7/07: Broadcast herbicide treatment applied to lupins sown on 26/6/07. 100 mL/ha Brodal® & 400 mL/ha Simazine.
Other trial notes

TOS1 23/4/07 (Dry), TOS2 28/5/07, TOS3 26/6/07
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

@T1: 5 September @T2: 26 September
# Treatment 1
Treatment 2
Treatment 3
Establishment plants (plants/m2) Protein (%) Grain yield (t/ha) Weeds (weeds/plot) Biomass (unspecified) Biomass (unspecified)
1 █ Broadcast Spray █ 25cm Spacing █ TOS 1 36 33 0.71 11 120 136
1 █ Broadcast Spray █ 25cm Spacing █ TOS 2 45 33.8 0.66 7 112 149
1 █ Broadcast Spray █ 25cm Spacing █ TOS 3 42 33.9 0.56 14 106 111
2 █ Nil Weed Management █ 25cm Spacing █ TOS 1 36 33.5 0.74 13 132 142
2 █ Nil Weed Management █ 25cm Spacing █ TOS 2 37 34.7 0.64 40 156 156
2 █ Nil Weed Management █ 25cm Spacing █ TOS 3 38 33.7 0.55 17 92 95
3 █ Broadcast Spray █ 50cm Spacing █ TOS 1 44 32.6 0.94 9 115 126
3 █ Broadcast Spray █ 50cm Spacing █ TOS 2 46 33.1 0.87 11 115 143
3 █ Broadcast Spray █ 50cm Spacing █ TOS 3 47 33.3 0.72 17 92 130
4 █ Nil Weed Management █ 50cm Spacing █ TOS 1 41 34.2 0.76 34 121 96
4 █ Nil Weed Management █ 50cm Spacing █ TOS 2 42 33.5 0.75 35 104 123
4 █ Nil Weed Management █ 50cm Spacing █ TOS 3 50 33.6 0.79 39 102 125
5 █ Shield spray █ 50cm Spacing █ TOS 1 42 34.8 0.59 23 104 102
5 █ Shield spray █ 50cm Spacing █ TOS 2 50 34.1 0.63 29 118 126
5 █ Shield spray █ 50cm Spacing █ TOS 3 51 34.1 0.55 18 107 102
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Grain yield t/ha

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Biomass unspecified

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Establishment plants plants/m2

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Protein %

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Weeds weeds/plot

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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Winchester, WA 0 - 10cm Sand over Gravel
Winchester, WA 10 - 30cm Sand over Gravel
Soil conditions
Trial site Soil texture
Winchester, WA Sand over gravel
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Winchester, WA Hydrosol
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 Winchester WA
2007
2006
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2002
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2000

Climate

Winchester WA 2007

Observed climate information

Rainfall trial gsr (mm) 148mm

Derived climate information

Winchester WA

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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

2007 trial report



Trial last modified: 23-01-2023 16:03pm AEST