Closing the Economic Yield Gap for Grain Legumes in Western Australia

2024

Research organisation
Funding source

Trial details

Researcher(s) N/A
Year(s) 2024
Contributor Corrigin Farm Improvement Group
Trial location(s) Narembeen, WA
Closing the Economic Yield Gap for Grain Legumes in Western Australia locations
Aims

The CFIG component of the grain legume project over 2023 and 2024 was to compare the yield potential for five grain legume crops in our area and assess the impact on wheat yield in the following year. The small plot trial assessed Lupins, Field Pea, Vetch, chem fallow and Chickpea. These legumes are seen as viable options for the Narembeen area and have been used in this trial for this comparison.

Key messages

The 2024 Narembeen legume trial provided valuable insights into the performance of different break crops under low rainfall conditions. The standout result was field peas achieving the highest average yield of 1.15 t/ha, followed by lupins (0.90 t/ha), chickpeas (0.55 t/ha), and vetch (0.50 t/ha). The chemical fallow did not produce a yield but played a role in soil moisture conservation.

The trial demonstrated that field peas were the most productive option, indicating their suitability for low rainfall areas. Lupins also performed well, reinforcing their viability as a break crop. Chickpeas and vetch had lower yields, suggesting that their agronomic fit may require further optimization.

Subsequent wheat crop yields following different break crops are:

  • Field Pea Stubble: 3.48 t/ha (Highest yield)
  • Chickpea Stubble 3.43 t/ha
  • Chemical Fallow: 3.39 t/ha
  • Vetch Stubble: 3.33t/ha
  • Lupin Stubble: 3.23 t/ha (Lowest yield)
Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC GGA2110-002SAX
Related program N/A
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop types Grain Legume: Chickpeas Grain Legume: Field peas Grain Legume: Lupins Hay: Vetch
Treatment type(s)
  • Crop : Type
  • Crop : Rotation
Trial type Experimental
Trial design Randomised,Replicated

Narembeen 2024 Chickpeas

Sow rate or Target density 80 kg/ha
Sowing machinery

Knife points and press wheels (sowing depth 20-25 mm, row spacing 25.4 cm)

Sow date 28 May 2024
Harvest date December 2024
Trial design method RCBD Randomised Complete Block Design
Plot size 20m x 4.5m
Plot replication 4
Plot randomisation Y
Herbicide

Pre-emergent:

Trifluralin 2 L/ha; Weedmaster DST 2 L/ha; Rustler 1 L/ha; Bifenthrin 100 mL/ha; Chlorpyrifos 1 L/ha

Post-emergent:

Clethodim 330 mL/ha; Elantra Xtreme 100 mL/ha; Aviator Xpro 600 mL/ha; Transform 50 g/ha; Affirm 300 mL/ha; Transform 50 g/ha; Affirm 300 mL/ha

Narembeen 2024 Field peas

Sow rate or Target density 80 kg/ha
Sowing machinery

Knife points and press wheels (sowing depth 20-25 mm, row spacing 25.4 cm)

Sow date 28 May 2024
Harvest date Not specified
Trial design method Not specified
Plot size 20m x 4.5m
Plot replication 4
Plot randomisation Y
Herbicide

Pre-emergent:

Trifluralin 2 L/ha; Weedmaster DST 2 L/ha; Rustler 1 L/ha; Bifenthrin 100 mL/ha; Chlorpyrifos 1 L/ha

Post-emergent:

Clethodim 330 mL/ha; Elantra Xtreme 100 mL/ha; Aviator Xpro 600 mL/ha; Transform 50 g/ha; Affirm 300 mL/ha; Transform 50 g/ha; Affirm 300 mL/ha

Narembeen 2024 Lupins

Sow rate or Target density 80 kg/ha
Sowing machinery

Knife points and press wheels (sowing depth 20-25 mm, row spacing 25.4 cm)

Sow date 28 May 2024
Harvest date Not specified
Trial design method Not specified
Plot size 20m x 4.5m
Plot replication 4
Plot randomisation Y
Herbicide

Pre-emergent:

Trifluralin 2 L/ha; Weedmaster DST 2 L/ha; Rustler 1 L/ha; Bifenthrin 100 mL/ha; Chlorpyrifos 1 L/ha

Post-emergent:

Clethodim 330 mL/ha; Elantra Xtreme 100 mL/ha; Aviator Xpro 600 mL/ha; Transform 50 g/ha; Affirm 300 mL/ha; Transform 50 g/ha; Affirm 300 mL/ha

Narembeen 2024 Vetch

Sow rate or Target density 20 kg/ha
Sowing machinery

Knife points and press wheels (sowing depth 20-25 mm, row spacing 25.4 cm)

Sow date 28 May 2024
Harvest date Not specified
Trial design method Not specified
Plot size 20m x 4.5m
Plot replication 4
Plot randomisation Y
Herbicide

Pre-emergent:

Trifluralin 2 L/ha; Weedmaster DST 2 L/ha; Rustler 1 L/ha; Bifenthrin 100 mL/ha; Chlorpyrifos 1 L/ha

Post-emergent:

Clethodim 330 mL/ha; Elantra Xtreme 100 mL/ha; Aviator Xpro 600 mL/ha; Transform 50 g/ha; Affirm 300 mL/ha; Transform 50 g/ha; Affirm 300 mL/ha

Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Narembeen, WA Brown sandy loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Narembeen, WA Sodosol

Climate

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Narembeen WA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
Loading
Loading
Loading

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

2024 trial report



Trial last modified: 14-07-2025 09:39am AEST