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| Researcher(s) |
Jordan Bathgate Felicity Harris Hugh Kanaley Mary Matthews Ian Menz Jessica Simpson Dean Turner |
|---|---|
| Year(s) | 2020 |
| Contributor | Department of Primary Industries NSW |
| Trial location(s) |
Harefield, NSW
|
| Further information | View external link |
This paper presents results from the Harefield site (southern NSW) in 2020 and discusses the influence of sowing date (SD) on the phenology and grain yield responses of a core set of 36 wheat genotypes.
• In the high yielding 2020 season, flowering earlier than the optimal flowering period resulted in significant yield penalties.
• Grain yield responses varied in response to sowing date, and the highest yields occurred when varietal phenology was matched with the recommended sowing windows.
• A key recommendation for growers is to remain disciplined with sowing dates.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC BLG104 |
| Trial funding source | DPI NSW |
| Related program | N/A |
| Acknowledgments |
This experiment was part of the ‘Optimising grain yield potential of winter cereals in the northern grains region’, project BLG104, 2017–20, a joint investment by GRDC and NSW DPI under the Grains Agronomy and Pathology Partnership (GAPP). |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow rate or Target density | 140 plants/m2 |
|---|---|
| Sowing machinery |
Direct drilled with DBS tynes spaced at 240 mm using a GPS auto-steer system |
| Sow date | Please see report for treatment details |
| Harvest date | 26 November 2020 |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser |
• 92 kg/ha mono-ammonium phosphate (MAP) (sowing). • 42 kg N/ha applied as urea (10 July and 4 August). • Fertiliser treatment: Flutriafol (250 g/L) 400 mL/ha |
| Herbicide |
Knockdown: Weedmaster® DST® (470 g/L glyphosate) 2.5 L/ha, Revolver® (135 g/L paraquat and 115 g/L diquat) 2 L/ha. Pre-emergent: Sakura® (850 g/ka pyroxasulfone) 118 g/ha + Avadex® Xtra (500 g/L tri-allate) 1.6 L/ha + trifluralin (480 g/L) 0.8 L/ha In-crop: LVE MCPA (570 g/L) 600 mL/ha + Paradigm® (200 g/kg halauxifen and 200 g/kg florasulam) 25 g/ha (applied 22 May to SD1 and SD2 only) |
| Fungicide |
Foliar fungicide: Prosaro® 420 SC (210 g/L prothioconazole and 210 g/L tebuconazole) 300 mL/ha 19 June (SD1 and SD2), 3 August, 18 September. |
| Seed treatment | Hombre® Ultra (360 g/L imidacloprid and 12.5 g/L tebuconazole) 200 mL/100 kg and Gaucho® 600 (600 g/L imidacloprid)120 mL/100 kg |
| Other trial notes |
This research paper is an extract from the publication Southern NSW Research Results 2021, available at |
SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
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