Lentil herbicide management in southern low rainfall environments

2018

Research organisatons
Funding source

Trial details

Researcher(s) Sarah Day
Year(s) 2018
Contributor SARDI Minnipa Agricultural Centre
Trial location(s) Minnipa Agricultural Centre, SA
Lentil herbicide management in southern low rainfall environments locations
Aims

To identify crop safety levels and economic risk of pre- and post-emergent herbicide use on lentil across different soil types and environments in the southern low rainfall zone. This project builds on previous GRDC-funded projects, including DAV00113 (southern region pulse agronomy).

Key messages
  • Interactions between herbicide and application rate did not have differing responses for grain yield, biomass yield, or gross margin at Minnipa, 2018.
  • Combined herbicide and application timing treatments did show differences in grain yield, biomass yield and gross margin.
  • Metribuzin and Diuron treatments indicated increased safety levels (58-466% higher biomass and 6-161% higher grain yield) and lower economic risk compared to Terbuthylazine treatments.
  • For herbicide applications incorporated by sowing, Metribuzin was of lower economic risk (45% higher gross margin) than Diuron.
Lead research organisation South Australian Research and Development Institute
Host research organisation SARDI Minnipa Agricultural Centre
Trial funding source GRDC DAS00162-A
Related program N/A
Acknowledgments

Funding for this project is provided by GRDC (DAS00162-A) and their continued support is gratefully acknowledged. The continued assistance from SARDI New Variety Agronomy groups at Clare and Minnipa, in particular Brenton Spriggs and Sue Budarick, is gratefully acknowledged and appreciated. We would also like to acknowledge support from property owners and low rainfall farming system groups involved in this project.


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

Method

Crop type Grain Legume: Lentils
Treatment type(s)
  • Crop: Variety
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Minnipa Agricultural Centre 2018

Sowing machinery

Sowing was conducted on 22 June 2018 using an experimental plot seeder with 27 cm row spacings. Incorporated by sowing (IBS) and post-sowing pre-emergent (PSPE) herbicide treatments were applied on 22 June 2018. Post-emergent herbicide treatments were applied on 1 August 2018. Biomass cuts were taken on 21 September 2018 at early flowering. Harvest was conducted on 16 November 2018. Data was analysed using Genstat 19th Edition.

Sow date 22 June 2018
Harvest date 16 November 2018
Plot size 10m x 1.75m
Plot replication 3
Plot blocking The trial was arranged in a randomised complete block design with one lentil variety, PBA Hurricane XT. There were 24 treatments in the trial, with each treatment replicated three times.
Plot randomisation The trial was arranged in a randomised complete block design with one lentil variety, PBA Hurricane XT. There were 24 treatments in the trial, with each treatment replicated three times.
Herbicide

Treatments included a combination of six herbicides (Group B and C), each applied at two timings and a high and low rate for each timing (Table 1). An untreated control was not included in the trial, as Metribuzin applied at a low rate incorporated by sowing (IBS) is considered to be a control or standard treatment for the purpose of this experiment.

In addition to herbicide treatments, Sprayseed was applied to the trial site prior to sowing.

Incorporated by sowing (IBS) and post-sowing pre-emergent (PSPE) herbicide treatments were applied on 22 June 2018. Post-emergent herbicide treatments were applied on 1 August 2018.

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
Minnipa Agricultural Centre, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Minnipa Agricultural Centre, SA 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 Minnipa Agricultural Centre SA
2018 508.3mm
2017 542.1mm
2016 507.1mm
2015 495.9mm
2014 541.0mm
2013 458.7mm
2012 506.5mm
2011 543.2mm
2010 532.9mm
2009 530.7mm
2008 437.3mm
2007 431.4mm
2006 461.6mm
2005 442.2mm
2004 442.3mm
2003 448.1mm
2002 448.1mm
2001 487.6mm
2000 461.5mm
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

Minnipa Agricultural Centre SA 2018


Observed climate information

Rainfall avg ann (mm) 325mm
Rainfall avg gsr (mm) 242mm
Rainfall trial total (mm) 269mm
Rainfall trial gsr (mm) 208mm

Derived climate information

Minnipa Agricultural Centre SA

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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: 08-10-2019 13:34pm AEST