| Researcher(s) |
Brendan Christy Malcolm McCaskill Rob Norton Debra Partington Amanda Pearce Penny Riffkin Kerry Stott |
|---|---|
| Year(s) | 2017 |
| Contributor | MacKillop Farm Management Group |
| Trial location(s) |
Bool Lagoon, SA
|
To examine fertiliser and crop management of areas at risk of flooding.
• Wheat was surprisingly tolerant of continuous flooding for nearly 4 months, yielding up to 2.8 t/ha with the best combination of nutrients tested.
• Despite the extended flooding there was a 13% response to P at a starting Colwell P of 29 mg/kg, with an economic optimum application rate of 7 kg P/ha.
• Canola was intolerant of extended flooding, producing no harvestable yield.
• In-crop application of urea shortly before flooding showed no grain yield response in wheat, while there was a negative response of 9% to applying S as in-crop sulfate of ammonia.
• Ideally in-crop applications of fertiliser should be made at least a week prior to flooding to allow time for the crop to take up the nutrients.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Related program | N/A |
| Acknowledgments |
We thank Grains Research and Development Corporation, and Agriculture Victoria Research, for funding this work through DAV00141, the technical team at SARDI – Ian Ludwig, Caroline Hilton, David Robertson and Kirsty Dickenson for management of the trials. We also thank Bruce McLean for hosting the research site. |
| Other trial partners | Not specified |
| Crop types | Oilseed: Canola Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Unknown |
| Sow date | 15 May 2017 |
|---|---|
| Harvest date | 18 December 2017 |
| Plot size | Not specified |
| Plot replication | Not specified |
| Sow date | Not specified |
|---|---|
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | Not specified |
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.
