Improved drought resilience through optimal management of soil and water

2023

Research organisation
Funding sources

Trial details

Researcher(s) Kate Coffey
Rhiannan McPhee
Year(s) 2023
Contributor Riverine Plains
Trial location(s) Howlong, NSW
Mulwala, NSW
Improved drought resilience through optimal management of soil and water locations
Aims

Focus Paddock 1: Diverse rotations- To demonstrate how diverse legume rotations can potentially provide a range of system benefits.

Focus Paddock 2: Early sowing- To understand strategies of nitrogen banking versus application based on nitrogen demand, preventing excess application, increase profitability and decrease environmental losses.

Key messages

• Deep nitrogen analysis and farmer observations show that the use of a legume in a rotation provided more nitrogen than a pure cereal history for the subsequent canola crop.
• The application of nitrogen based on deep soil nitrogen (DSN) testing, and the use of nitrogen budgeting by the farmer, resulted in more uniform nitrogen levels across the whole paddock and availability for crops.
• Comprehensive soil testing for variety and crop types is increasingly important for future farm resilience.
• Soil water measurements taken prior to sowing canola showed higher plant available water under wheat stubble compared to faba bean stubble, likely the result of greater ground cover provided by the wheat stubble over summer.

• Early sowing crops can provide opportunities for grazing and diversification of the farming system.
• Early sowing a portion of the cropping program can bring more crops into the ideal sowing window and reduce the risk of seasonal effects, such as frost.

Lead research organisation N/A
Host research organisation N/A
Trial funding source Future Drought Fund: Drought resilient soils
Trial funding source GRDC
Related program N/A
Acknowledgments

This project is supported through funding from the Australian Government’s Future Drought Fund Drought Resilient Soils and Landscapes Grants Program and is co-funded by the Grains Research and Development Corporation. It is delivered by a collaboration between Riverine Plains Inc, CSIRO, NSW Department of Primary Industries, FarmLink, Central West Farming Systems, Southern Growers and the Southern NSW Drought Resilience Adoption and Innovation Hub.
Riverine Plains would like to thank farmer hosts, Tim and Ian Trevethan, Sam, Chris and Libby Kellock and Lawson, Doug and Bronwyn Thomas for the use of their land and support throughout this trial.


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

Method

Crop types Oilseed: Canola Cereal (Grain): Wheat
Treatment type(s)
  • Crop : Rotation
  • Irrigation
  • Sowing : Timing
Trial type Demonstration
Trial design Not applicable

Howlong 2023 Canola

Sow rate or Target density Not specified
Sow date 16 May 2023
Harvest date 19 November 2023
Plot size Not specified
Plot replication Not specified
Fertiliser

Based on soil tests and in-crop observations, 58 kg/ha nitrogen and 14 kg/ha sulphur were applied to the paddock on 25 May 2023. 

Please refer to the trial report for more details on additional nitrogen and sulphur applications

Mulwala 2023 Wheat

Sow rate or Target density Illabo wheat @ 90kg/ha and Scepter wheat @ 70kg/ha
Sow date 7th April and 1st May, 2023
Harvest date Unknown
Plot size Not specified
Plot replication Not specified
Fertiliser

MAP 90kg/ha + urea 250kg/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
Howlong, NSW Not specified
Mulwala, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Howlong, NSW Sodosol
Mulwala, NSW 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.

Howlong NSW

Mulwala NSW

Howlong NSW

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

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

2023 trial report



Trial last modified: 25-03-2026 20:08pm AEST