| Researcher(s) |
Kate Coffey Rhiannan McPhee |
|---|---|
| Year(s) | 2023 |
| Contributor | Riverine Plains |
| Trial location(s) |
Howlong, NSW
Mulwala, NSW |
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.
• 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. |
| Other trial partners | Not specified |
| Crop types | Oilseed: Canola Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Demonstration |
| Trial design | Not applicable |
| 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 |
| 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 |
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.