| Researcher(s) |
Geoff Dean (SFS) |
|---|---|
| Year(s) | 2004 |
| Contributor | Southern Farming Systems |
| Trial location(s) |
Cressy, TAS
|
This trial was designed to compare the amount of irrigation water required by canola on raised beds with conventionally prepared ground.
There was a significant difference in response to irrigation on the flat ground and raised beds (Table 2). Grain yields on the flat ground only increased slightly with irrigation and this was not significant. On the raised beds there was a progressive increase in yield with increasing irrigation although there was not statistically significant difference between the two irrigated treatments. Initial examination of data from Gopher tubes shows greater drying of the soil profile on raised beds.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC |
| Related program | N/A |
| Acknowledgments |
Simon Munford (DPIWE), Brett Davey (SFS) |
| Other trial partners | Not specified |
| Crop type | Oilseed: Canola |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated,Blocked |
| Sow rate or Target density | 6 kg/ha |
|---|---|
| Sow date | 20 May 2004 |
| Harvest date | 23 December 2004 |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser |
250kg/ha 6:11:8:6 + 50kg N/ha |
| Herbicide |
2L Atrazine 16 Aug 2004 |
| Soil amelioration |
Topdressed N: 50kg N/ha 8 Sep 2004 |
| # | Variety |
Treatment 1
|
Treatment 2
|
Grain yield (t/ha) |
|---|---|---|---|---|
| 1 | █ Grace | █ Raised Bed | █ Nil irrigation | 3.18 |
| 2 | █ Grace | █ Raised Bed | █ Field Capacity of RB | 3.44 |
| 3 | █ Grace | █ Raised Bed | █ Field Capacity of flats | 3.35 |
| 4 | █ Grace | █ Flat | █ Nil irrigation | 3.54 |
| 5 | █ Grace | █ Flat | █ Field Capacity of RB | 3.57 |
| 6 | █ Grace | █ Flat | █ Field Capacity of flats | 3.61 |
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.
