| Researcher(s) |
Michael Robertson (CSIRO) Kathy Wittwer (CSIRO) |
|---|---|
| Year(s) | 2006 |
| Contributor | Liebe Group |
| Trial location(s) |
West Buntine, WA
|
To evaluate the response of wheat (yield and protein) in different paddock management zones to in-season application of nitrogen fertilizer, using the Yield Prophet system as a guide.
There was a small discernable response in early season biomass to N applied at seeding at the sampling on 29 August August.
| Lead research organisation |
Commonwealth Scientific and Industrial Research Organisation |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC SIP09 |
| Related program | N/A |
| Acknowledgments |
Thanks to Stuart McAlpine, Brianna Peake with assistance with Yield Prophet simulations, CBH for grain analysis, GRDC for funding through the SIP09 Precision Agriculture Initiative.
|
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow rate or Target density | 70 kg/ha |
|---|---|
| Sow date | 30 May 2006 |
| Harvest date | Unknown |
| Plot size | Not specified |
| Plot replication | 4 |
| Fertiliser |
Various |
| # |
Treatment 1
|
Treatment 2
|
Gross margin ($/ha) | Harvest index (value) | Hectolitre weight (kg/hL) | Protein (%) | Screenings (%) | Grain yield (t/ha) |
|---|---|---|---|---|---|---|---|---|
| 1 | █ Deep Yellow Sand | █ 9 + 0 + 0 kg/ha N | 90 | 0.45 | 83 | 9.9 | 3.4 | 1.07 |
| 2 | █ Shallow Gravel | █ 9 + 0 + 0 kg/ha N | 90 | 0.47 | 83 | 11.2 | 3.7 | 1.1 |
| 3 | █ Shallow Gravel | █ 9 + 0 + 21 kg/ha N | 63 | 0.45 | 79 | 11.1 | 5.5 | 0.93 |
| 4 | █ Deep Yellow Sand | █ 9 + 25 + 0 kg/ha N | 58 | 0.43 | 81 | 12 | 4.8 | 1.13 |
| 5 | █ Shallow Gravel | █ 9 + 25 + 0 kg/ha N | 58 | 0.47 | 83 | 10.3 | 2.2 | 1.18 |
| Rainfall trial gsr (mm) | 144mm |
|---|
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.
