| Researcher(s) |
Malcolm McCaskill (SARDI) Amanda Pearce (SARDI) Penny Riffkin (DEDJTR) |
|---|---|
| Contact email | amanda.pearce@sa.gov.au, |
| Year(s) | 2016 |
| Contributor | MacKillop Farm Management Group |
| Trial location(s) |
Bool Lagoon, SA
|
To test canola and wheat yield response and the interactions between nutrients where N, P, K and S and micro-nutrients Zn and Cu are omitted.
• National GRDC funded project ‘Optimising the yield and economic potential of high input cropping systems in the high rainfall zone’.
• Two nutrient omission trials sown in 2016 at Bool Lagoon to test canola and wheat yield response and the interactions between nutrients where N, P, K and S and micro-nutrients Zn and Cu are omitted.
• Relative to the treatment supplied with non-limiting nutrients, both canola and wheat grain yields were significantly lower if either P or S were not applied at sowing (38 and 30 % depression respectively for canola, 24% and 17% for wheat).
• Relative to the treatment supplied with non-limiting nutrients, canola biomass at flowering was 36 % lower without in-crop N and 8% lower without P at sowing, while wheat biomass at flowering was 40% lower without in-crop N and 12% lower without P at sowing.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC DAV00141 |
| Related program | N/A |
| Acknowledgments |
• GRDC for funding the ‘Optimising the yield and economic potential of high input cropping systems in the high rainfall zone’ project; |
| Other trial partners | Not specified |
| Crop types | Oilseed: Canola Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Unknown |
| Sow date | Not specified |
|---|---|
| Harvest date | Not specified |
| 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.
