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Catalogue: GRDC Updates
Glyphosate has long been our critical herbicide in enabling effective and economic fallow weed control in stubble conservation farming systems... NB Not all products have a specific summer fallow registration for control of stink grass so the advice is to read and follow the product label in all situations... Roundup CT (glyphosate 450g/L a.i.) was applied at 0.5 L/ha in all trials, at a sub-lethal below label rate, to simulate a situation where resistance to glyphosate was developing...
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Catalogue: NVT Online Papers
The research has been conducted across the mid north of South Australia to determine if new and existing varieties of barley vary in tolerance to commonly used herbicides.. The sensitivity of the variety is summarised, using the following symbols based on the yield responses across all trials: - not tested or insufficient data (z) no significant yield reductions at recommended rates or higher than recommended rates in (z) trials N (w/z) narrow margin, significant yield reductions at higher than recommended rate, but not at recommended rate significant event occurring w years out of z years tested... (2/5) = tested for 5 years, 2 returning a significant yield loss x% (w/z) yield reduction (warning) significant yield reduction at recommended rate in 1 trial only in z years of testing x-y% (w/z) yield reductions (warning) significant yield reductions at recommended rate in w years out of z years tested...
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Catalogue: GRDC Updates (South)
Key principles of aeration drying - flow fields, drying fronts, selecting the right air quality.. PO Box 718, Hornsby NSW 1630 Ph: (02) 9482 4930, Fx: (02) 9482 4931, E-mail: icanjohn@tpg.com.au DISCLAIMER This publication has been prepared by the Grains Research and Development Corporation, on the basis of information available at the time of publication without any independent verification... By comparison the cooling process is measured in hours and days...
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Catalogue: NVT Online Papers
Preliminary Evaluation - herbicides applied at greater than recommended rates to identify cultivar herbicide combinations which may lead to yield loss... The sensitivity of the variety is summarised, using the following symbols based on the yield responses across all trials: - not tested or insufficient data (z) no significant yield reductions at recommended rates or higher than recommended rates in (z) trials N (w/z) narrow margin, significant yield reductions at higher than recommended rate, but not at recommended rate significant event occurring w years out of z years tested... (2/5) = tested for 5 years, 2 returning a significant yield loss x% (1/z) yield reduction (warning) significant yield reduction at recommended rate in 1 trial only in z years of testing x-y% (w/z) yield reductions (warning) significant yield reductions at recommended rate in w years out of z years tested...
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Catalogue: NVT Online Papers
Preliminary Evaluation - herbicides applied at greater than recommended rates to identify cultivar herbicide combinations which may lead to yield loss... The sensitivity of the variety is summarised, using the following symbols based on the yield responses across all trials: - not tested or insufficient data (z) no significant yield reductions at recommended rates or higher than recommended rates in (z) trials N (w/z) narrow margin, significant yield reductions at higher than recommended rate, but not at recommended rate significant event occurring w years out of z years tested... (2/5) = tested for 5 years, 2 returning a significant yield loss x% (1/z) yield reduction (warning) significant yield reduction at recommended rate in 1 trial only in z years of testing x-y% (w/z) yield reductions (warning) significant yield reductions at recommended rate in w years out of z years tested...
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Catalogue: NVT Online Papers
The research has been conducted across the mid north of South Australia to determine if new and existing varieties of barley vary in tolerance to commonly used herbicides.. The sensitivity of the variety is summarised, using the following symbols based on the yield responses across all trials: (z) no significant yield reductions at higher than recommended rates in (z) trials N (w/z) narrow margin, significant yield reductions at higher than recommended rate, but not tested at recommended rate significant event occurring w years out of z years tested... All pesticide applications must accord with the currently regisetered label for that particular pesticide, crop, pest and region...
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Catalogue: NVT Online Papers
Preliminary evaluation entries from previous years that have experienced narrow margin % yield reductions at higher than recommended rate are 'Advanced' to these trials for closer evaluation... The sensitivity of the variety is summarised, using the following symbols based on the yield responses across all trials: - not tested or only tested at higher than recommended rate (Please check Preliminary Evaluation tables) no significant yield reductions at recommended rates or higher than recommended rates in (Z) trials N (narrow margin) significant yield reductions at higher than recommended rate in 1+ trials, but not at recommended rate x% yield reduction (warning) significant yield reduction at recommended rate in 1 trial only x-y% yield reductions (warning) significant yield reductions at recommended rate in 2+ trials.. It must be emphasised that crop tolerance and yield responses to herbicides are strongly influenced by seasonal conditions...
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Catalogue: NVT Online Papers
The sensitivity of the variety is summarised, using the following symbols based on the yield responses across all trials: not tested or insufficient data.. (z) no significant yield reductions at recommended rates or higher than recommended rates in (z) trials N (w/z) narrow margin, significant yield reductions at higher than recommended rate, but not at recommended rate significant event occurring w years out of z years tested... (2/5) = tested for 5 years, 2 returning a significant yield loss x% (1/z) yield reduction (warning) significant yield reduction at recommended rate in 1 trial only in z years of testing x-y% (w/z) yield reductions (warning) significant yield reductions at recommended rate in w years out of z years tested...
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Catalogue: GRDC Final Reports
Field experiments were at weed-free sites, with comparison of yields from areas sprayed with registered herbicides at the recommended and double rates and untreated control areas for each cultivar... Not all cultivars were included in each field trial... Significant yield reductions at the recommended rate were recorded for the following herbicides and cultivars: Bromicide 200 - Binalong, 11% in 1 of 4 trials; Gilbert, 10% in 1 of 3 trials; Grimmett, 13% in 1 of 4 trials...
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Catalogue: GRDC Updates (West)
Research by Larn McMurray (SARDI, South Australia) showed that lentils were very susceptible to metribuzin damage when cold minimum temperatures (below 5 deg C) were experienced in the five day period following spraying... To determine if the finding that 'metribuzin damages lentils when cold minimum temperatures occur' applies to lupins in Western Australia... Lupins were visually assessed for phyto-toxicity every metre along each plot...
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