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Researcher(s) |
Rick Graham (NSW DPI) Bruce Haigh (NSW DPI) Guy McMullen (NSW DPI) Steven Simpfendorfer (NSW DPI) |
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Year(s) | 2014 |
Contributor | Department of Primary Industries NSW |
Trial location(s) |
Tamarang, NSW
|
To determine the maximum attainable grain yield for a given location and year, and to quantify the contributions.
Lead research organisation |
Department of Primary Industries NSW |
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Host research organisation | N/A |
Trial funding source | GRDC DAN00181 |
Trial funding source | DPI NSW |
Related program |
Northern region high yielding cereal agronomy - NSW |
Acknowledgments |
This experiment was co-funded by NSW DPI and GRDC under project DAN00181: Northern Region high yielding cereal agronomy – NSW. Thanks to David Ronald for providing the trial site. Technical assistance provided by Stephen Morphett, Jim Perfrement, Peter Formann, Jim Keir, Jan Hosking, Rod Bambach, and Richard Morphett (all NSW DPI) is also gratefully acknowledged. |
Other trial partners | Co-operators: David Ronald |
Crop type | Cereal (Grain): Wheat |
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Treatment type(s) |
|
Trial type | Experimental |
Trial design | Replicated |
Sow rate or Target density | 60, 120 or 180 plants/m2 |
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Sow date | 19 May 2014 TOS 1: 9 May 2014; TOS 2 30 June 2014 |
Harvest date | Not specified |
Plot size | Not specified |
Plot replication | Not specified |
Fertiliser |
Nitrogen:
Phosphorus:
|
Other trial notes |
Treatments A series of 36 treatment combinations (2 TOS × 18 treatments) were investigated in a partially factorial experiment, with three replicates. Treatments were designed similar to an omission trial, with the high input treatment aimed at providing the perceived optimum combination of factors and a low input treatment comprising a base set of agronomic factors. |
# |
Treatment 1
|
Treatment 2
|
Treatment 3
|
Grain yield (t/ha) |
---|---|---|---|---|
1 | █ EGA Gregory @ 120 plants/m2 | █ 100 kg N/ha + 20 kg P/ha | █ 0 CR | 7.33 |
2 | █ EGA Gregory @ 120 plants/m2 | █ 0 kg N/ha + 20 kg P/ha | █ 0 CR | 6.7 |
3 | █ EGA Gregory @ 120 plants/m2 | █ 100 kg N/ha + 20 kg P/ha | █ +++ CR | 6.75 |
4 | █ Sunvale @ 120 plants/m2 | █ 100 kg N/ha + 20 kg P/ha | █ 0 CR | 6.77 |
# |
Treatment 1
|
Treatment 2
|
Grain yield (t/ha) |
---|---|---|---|
1 | █ LRPB Spitfire @ 120 plants/m2 | █ 0 CR | 4.95 |
2 | █ LRPB Spitfire @ 60 plants/m2 | █ 0 CR | 4.52 |
3 | █ LRPB Spitfire @ 120 plants/m2 | █ +++ CR | 4.32 |
Rainfall trial gsr (mm) | 170mm |
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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.