Researcher(s) |
Sarah Day |
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Year(s) | 2018 |
Contributor | SARDI Minnipa Agricultural Centre |
Trial location(s) |
Minnipa Agricultural Centre, SA
|
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).
Lead research organisation |
South Australian Research and Development Institute |
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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 |
Crop type | Grain Legume: Lentils |
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Treatment type(s) |
|
Trial type | Experimental |
Trial design | Randomised,Replicated,Blocked |
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. |
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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. |
Rainfall avg ann (mm) | 325mm |
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Rainfall avg gsr (mm) | 242mm |
Rainfall trial total (mm) | 269mm |
Rainfall trial gsr (mm) | 208mm |
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.