| Researcher(s) |
Glenn McDonald |
|---|---|
| Year(s) | 2024 |
| Contributor | Hart Field Site Group |
| Trial location(s) |
Hart, SA
|
| Further information | View external link |
To understand how water is held and released for plant growth in different soils that can help explain the effects of rainfall on germination and emergence and how it varies with soil type.
• Soil type has a large bearing on how sown crops respond to rainfall and the patterns of emergence across a paddock.
• Pot experiments and field trials conducted in 2023-2024 indicate seed can remain in dry soil for 4-6 weeks without reducing germination and emergence significantly.
• Approximately 15-20 mm of rainfall is required for emergence on a loamy soil type. Germination of sown seed can occur with smaller rainfall events, but seedlings may not emerge.
• Sowing deeper than normal into dry soil generally has not improved establishment. Sowing at standard or shallower depths will result in the best establishment rates.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | South Australian Grains Industry Trust (SAGIT) UAD1323 |
| Related program | N/A |
| Acknowledgments |
The author would like to thank the South Australian Drought Resilience Adoption and Innovation Hub (project code: GRDC_23_03 and SAGIT_23_04) and the South Australian Grains Industry Trust (SAGIT) (project code: UAD1323) for their financial contributions to conduct pot experiment and Mid North field trials presented in this review and acknowledge project partners Hart Field-Site Group, |
| Other trial partners | Not specified |
| Crop types | Oilseed: Canola Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Article/commentary |
| Trial design | Not applicable |
| Sow date | Not applicable |
|---|---|
| Harvest date | Not applicable |
| 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.
