Department of Primary Industries and Regional Development WA
Trial location(s)
beacon, WA
Jerramungup, WA
Moorine Rock, WA
Neridup, WA
Aims
Assess the yield impact of different summer spray application timings at four trials in March 2017, following a widespread summer rainfall event.
Key messages
Time of weed removal at the high rainfall site did not affect canola yield but the canola had a higher biomass when weeds were removed earlier.
The medium rainfall site had consecutively higher wheat yields with earlier times of weed removal; however these were not significantly different.
At the low rainfall site plots sprayed for summer weeds had significantly higher oat yields than unsprayed plots. Timely control of summer weeds increased soil moisture and nitrate conservation.
Lead research organisation
Department of Primary Industries and Regional Development WA
Host research organisation
N/A
Trial funding source
GRDC DAW00256
Trial funding source
DPIRD WA FFPJP13
Related program
Regional Research Agronomy
Acknowledgments
Thanks to GRDC and DPIRD for co-investment in the ‘Building capacity in crop protection and crop production agronomy research and development in Western Australia’ project (DAW00256/DAW1512-001RTX)
Trial source data and summary not available Check the trial
report PDF for trial results.
Climate
Derived climate information
No observed climate data available for this trial. Derived climate data is
determined from trial site location and national weather sources.
beacon WA
Jerramungup WA
Moorine Rock WA
Neridup WA
beacon WA
NOTE: Exact trial site locality unknown - Climate data may not be accurate
Jerramungup WA
NOTE: Exact trial site locality unknown - Climate data may not be accurate
Moorine Rock WA
NOTE: Exact trial site locality unknown - Climate data may not be accurate
Neridup WA
NOTE: Exact trial site locality unknown - Climate data may not be accurate
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.
