GRDC Grains Research Update Wagga Wagga 2020
Presented at:
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18th Feb 2020 to 19th Feb 2020Update Event
Wagga Wagga, NSW
Sponsored by GRDC: GRDC Grains Research Update (Wagga Wagga)
GRDC Grains Research Update (Wagga Wagga)
Region: North
This page contains update papers presented at the GRDC Grains Research Update (Wagga Wagga).
Browse all update papers below or click Download PDF.
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Presented at GRDC Grains Research Update (Wagga Wagga)
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• A high number of green peach aphid populations are resistant to pyrethroids, carbamates, organophosphates, and neonicotinoids. • Multiple green peach aphid populations from a specific region are resistant to sulfoximines (sulfoxaflor, Transform®) due to an unknown resistance mechanism. • Significant differences in pyrethroid sensitivity were foun...
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Take home messages • Blackleg crown canker results from infection during early seedling growth. Prior to sowing, use the BlacklegCM decision support tool to identify high risk paddocks and explore management strategies to reduce yield loss. • New succinate dehydrogenase inhibitor (SDHI) seed treatment fungicides have higher efficacy, increased lon...
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• regulation, resistance, yield plateau, yield gap, remote sensing, soil health, soil nutrition, fungicides, immune enhancers, semiochemicals, robotics, big data...
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Take home messages • Frost damage can be detected through sensing but cultivar, plant component, canopy structure and time after frost affects the spectra. Consequently, there are some approaches that look promising but there is currently no unique index that can consistently detect frost damage. • Temperature variation within canopies due to canop...
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• Due to a combination of factors there is likely to be increased cereal plantings in 2020, once the opportunity arises. • Failed pastures with decent levels of grass development are potentially high-risk scenarios for cereal diseases in 2020 as grasses host many of the causal pathogens. • Unfortunately, prolonged dry conditions increase the risk o...
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Take home messages • Reductions in wind speed of up to 90% were recorded in the stripper front stubble over summer. • Significant reductions in air temperature were recorded within the stripper front stubble canopy over summer. • Minimal differences in daily minimum air and soil temperature on or near the soil surface during winter....
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Take home messages • Direct placement of prilled lime below the seed row can be used to effectively ameliorate subsurface soil acidity, however the amelioration is limited to the sowing row. • Soil sampling at 0-10cm is insufficient at identifying soil pH stratification, finer sampling increments of 5cm should be used....
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Take home messages • The efficacy of the herbicide mix; clethodim and butroxydim is significantly greater than either clethodim or butroxydim when applied stand-alone. • The efficacy of the herbicide mixture; trifluralin and prosulfocarb is significantly greater than either trifluralin or prosulfocarb when applied stand-alone. • There is little or ...
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• Maximum nitrogen fixation (N2 fixation) will only occur if conditions favour rapid development of functional nodules and vigorous plant growth. • Soil pH was the primary factor limiting the yield and nitrogen (N) contribution of acid-sensitive pulse crops in 83% of commercial paddocks surveyed in central and southern New South Wales (NSW), Victor...
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Take home messages • The pool of publicly available off-farm data that may be relevant to combine with on-farm data is increasing and can now be swiftly gathered for any farm or field. Collecting and using this data to make more informed decisions is an opportunity for growers. • Machine learning and hybrid models derived from large data sets and f...
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