The effects of sowing time and radish denisty on lupin yield

2007
CC BY 4.0

Research organisaton

Trial details

Researcher(s) Martin Harries (DAFWA)
Year(s) 2007
Contributor Liebe Group
Trial location(s) Wongan Hills, WA
The effects of sowing time and radish denisty on lupin yield locations
Aims

The aim was to assess the impacts of delayed sowing and radish infestation on lupin yield. By doing this we can better understand the extra weed control required to make delayed sowing profitable

Key messages
  • Lupin yield loss caused by delaying sowing by 3 or 4 days is similar to the yield loss caused by one radish plant per square metre growing within the crop.
  • As more populations of wild radish develop resistance to common herbicides it becomes critical to obtain effective weed control before and at seeding.
Lead research organisation N/A
Host research organisation N/A
Related program N/A
Acknowledgments

Thank you to Jo Walker and the staff at the Wongan Hills Reserach Station for managing the trial. Thank you to GRDC for continued 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)
  • Sowing: Timing
Trial type Experimental
Trial design Replicated

Wongan Hills 2007

Sow date 22 May 2007 2nd 25-6-08
Harvest date Not specified
Plot size 18m x 1.75m
Plot replication 6
Fertiliser

80 kg/ha Big Phos, deep banded at seeding

Herbicide

Knockdown immediately before each sowing. At 6 leaf crop stage 250 mL/ha Select�.

Insecticide

At seeding: 100 mL/ ha Talstar�.

Other trial notes

TOS1: 22/5/07, TOS2 25/6/07

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Treatment 2
Grain yield (t/ha)
1 TOS 1 Target Radish Density 0 plants/m2 1.62
2 TOS 2 Target Radish Density 0 plants/m2 1.17
3 TOS 1 Target Radish Density 12 plants/m2 1.4
4 TOS 2 Target Radish Density 12 plants/m2 0.63
5 TOS 1 Target Radish Density 24 plants/m2 1.29
6 TOS 2 Target Radish Density 24 plants/m2 0.57
7 TOS 1 Target Radish Density 3 plants/m2 1.64
8 TOS 2 Target Radish Density 3 plants/m2 1
9 TOS 1 Target Radish Density 6 plants/m2 1.47
10 TOS 2 Target Radish Density 6 plants/m2 0.79

Grain yield t/ha


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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Wongan Hills, WA 0 - 10cm Sand over Gravel
Wongan Hills, WA 10 - 30cm Sand over Gravel
Soil conditions
Trial site Soil texture
Wongan Hills, WA Sand over gravel
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Wongan Hills, WA Kandosol
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 Wongan Hills WA
2007 163.7mm
2006 176.1mm
2005 164.6mm
2004 182.2mm
2003 192.8mm
2002 134.6mm
2001 139.2mm
2000 207.0mm
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

Wongan Hills WA 2007


Observed climate information

Rainfall trial gsr (mm) 241mm

Derived climate information

Wongan Hills 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.