Jake Hull (SARDI)
|Contributor||SARDI Minnipa Agricultural Centre|
Site 5, Minnipa Agricultural Centre, SA
To compare grain yield and grain quality of a mid-late maturing variety (Trojan) and two early-mid season maturing varieties (Mace and Scepter).
|Lead research organisation||
SARDI Minnipa Agricultural Centre
|Host research organisation||N/A|
Amanda Cook, Ian Richter and Brian Dzoma, SARDI Minnipa Agricultural Centre.
|Other trial partners||Not specified|
|Sow rate or Target density||70 kg/ha|
On 13 May Trojan was sown using a 30 ft (9 m) air seeder along the full length of the paddock using three repetitions at 70 kg/ha seeding rate with 60 kg/ha DAP (18:20:0:0). Mace and Scepter were also sown at 70 kg/ha seeding rate with 60 kg/ha DAP (18:20:0:0) on this date for comparison between these two varieties.
The late time of sowing was on 26 May with Mace and Scepter, using the same rates of seed and fertilizer as the Trojan. These varieties were sown on strips left between the early sowing, so no extra chemicals were used. As Trojan is a longer growing season wheat variety, it was not included in the later time of sowing.
The paddock strips were harvested using a plot header with four 8.6 m strips per variety with three repetitions done across the demonstration area. Only averages can be compared between varieties with different times of sowing
|Sow date||13 May 2016 late time of sowing was on 26 May with Mace and Scepter|
|Harvest date||Not specified|
|Plot size||8.6m x 1.6m|
60 kg/ha DAP (18:20:0:0)
Knockdown chemicals used were 1.5 L/ha of glyphosate, 500 ml/ha ester 680 and 118 g/ha Sakura + SOA and Li 700. Sakura was used to help control grass weeds as there was little germination of weeds at sowing.
|Rainfall avg ann (mm)||325mm|
|Rainfall avg gsr (mm)||241mm|
|Rainfall trial total (mm)||391mm|
|Rainfall trial gsr (mm)||268mm|
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.