Rick Horbury (Bayer Crop Science)
|Contributor||West Midlands Group|
Over all four trials both Sakura treatments maintained a positive $ROI/ha with Sakura + trifluralin ($78.50) slightly ahead on average $ROI/ha to the standalone Sakura ($73.48)
Sakura 118 g/ha recorded a $55.08 increase in $ROI/ha over Boxer Gold across the four trials. Boxer Gold $ROI was generally in line with that of the prosulfocarb treatments in three of the sites, except from Waddy Forest where prosulfocarb 2.5 L/ha recorded a higher yield. Why this occurred is not clear as results were cross checked back with the contractor to ensure there was not a transcription error.
Trifluralin, due to its poor weed control, especially at Cunderdin, returned a slight positive $ROI/ha ($7.20) across the four trials.
All four sites to some extent were affected by frost which may have affected yield outcomes.
Getting weed control right is the key to ensuring the longevity of any herbicide but it also allows the crop it’s best possible chance of achieving its yield potential. Using a program of effective knockdowns and a product with a long residual activity like Sakura can deliver higher yields and returns across a variety of soil types and locations as seen across the four trials conducted during the 2016 season.
|Lead research organisation||
|Host research organisation||
West Midlands Group
|Trial funding source||Bayer|
To the grower’s (Patton, McIlroy, Butcher and Syme families) that each hosted one of the trials, thank you for all your work in sowing and maintaining the sites and your understanding when hosting field walks. Thanks to Living Farm for the harvest of Waddy Forest, Pithara and Cunderdin, and DAFWA at Nugadong. To Michael Macpherson from Imtrade Australia, thanks for the use of your early season assessments and allowing your trial to be included in this multi-site review.
|Other trial partners||Not specified|
|Sow rate or Target density||55 kg/ha|
Knife points and press wheels.
|Sow date||7 May 2016|
|Harvest date||Not specified|
|Plot size||2m x 10m|
|Fertiliser||<p>7 May: Agstar Extra 40kg/ha plus Urea 60 kg/ha</p> <p>7 June: ZincMate 500 mL/ha </p> <p>15 June: Flexi N 60 L/ha</p>|
|Herbicide||<p>Glyphosate rate and date not recorded. </p> <p>7 May: Eradicator 450 2L/ha</p>|
|Fungicide||<p>7 June: Jaguar 1 L/ha plus MCPA LVE 450 mL/ha plus 150 mL/ha tebuconazole 430</p>|
|Rainfall trial gsr (mm)||236mm|
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.