Peter Newman and Glenn Adam (Department of Agriculture)
Site 5, Coorow, WA
To evaluate Diuron as a broadleaf weed killer pre sowing of lupins and to evaluate some mixing partners to improve the control of grass weeds.
Diuron appears to be safe when applied pre-sowing of lupins at label rates, as there was no difference in yield between the Simazine alone and Diuron alone treatments.
|Lead research organisation||
Department of Agriculture and Food WA
|Host research organisation||N/A|
|Trial funding source||GRDC|
|Other trial partners||Not specified|
|Sow date||22 May 2003|
|Harvest date||Not specified|
|Plot size||40m x 5m|
22nd May 2003 Knockdown – Spray.Seed 1.5 L/ha in 80 L water / ha 22nd May 2003 All herbicide treatments applied. Herbicides Used: Simazine 500 g/L; Diuron 500 g/L; Trifluralin 480 g/L; Dual Gold® (S-Metolachlor 960 g/L)
||Ryegrass density (plants/m2)||Radish density (plants/m2)||Grain yield (t/ha)|
|1||█ Diuron 2 L/ha||17.9||0.9||1.66|
|2||█ Diuron 2 L/ha + Trifluralin 1.6 L/ha (768 gai)||3.4||1.6||1.79|
|3||█ Diuron 2 L/ha + Trifluralin 1.6 L/ha Pre + Dual Gold 500 mL/ha Pre Sowing||1.7||0.9||1.8|
|4||█ Diuron 2 L/ha + Trifluralin 1.6 L/ha Pre + Dual Gold 500 mL/ha PSPE||2.1||1.5||1.76|
|5||█ Diuron 2 L/ha Pre+ Dual Gold 500 mL/ha PSPE||18.8||1.4||1.63|
|6||█ Simazine 2 L/ha||41.7||0.5||1.65|
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.