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GRDC Final Reports

Reports from projects funded by the GRDC

Registered items

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" ATTACHMENT - FINAL REPORT DAW00087: Better long-lead seasonal and crop forecasts for southern Australia David Stephens, Department of Agriculture and Food, Western Australia Summary of seasonal outlooks presented at Crop Updates in February and what followed... Drier season (low) Average to well below (high) Average to above (high) Average to below (low).. Actual Rain in deciles most of WA wheatbelt 2-5 1 5-8 2-6 4-8 1 1 north 2-5 south 5-8 2-5 north..
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The aim of the study was to evaluate the impact of subsurface (below plough layer) and subsoil (B horizon) constraints on the performance of canola... The inclusion of canola in the cropping rotation underpinned unprecedented wheat yield improvements in many areas during the 1990s... Canola was generally considered more sensitive than wheat to hardpans, water logging and soil acidity but less sensitive to salinity and boron toxicity, although no comprehensive studies have been carried out to confirm these observations...
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The project has shown that the use of variety management packages for new pulse varieties has the potential to increase pulse production and reliability of production... Adoption of recommendations developed in this project will optimise grain yield benefits of new varieties, resulting in higher potential returns, and minimised production risks, preventing major economic losses that can occur with total crop failure... The aim of the project was to collect data for and develop simple regional variety specific agronomic management packages (VSAP) for new lentil, field pea and chickpea varie...
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We applied the tools to two case study catchments in Western Australia (WA) and showed that by taking account of soil type and seasonal influences on crop yield potential, gains of $2-40/ha are possible... We used simulated estimates of wheat yield potential generated by the decision making tool, APSIM, from the past 30 seasons at locations in the Western Australian (WA) central wheat belt (Kellerberrin) and northern agricultural region (Mingenew), run over a wide range of soil types from each district... The author believes there would be merit in assessing the gains in better use of thes...
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In its third phase, the Western Australian Herbicide Resistance Initiative (WAHRI) project led targeted strategic and applied research aimed at minimising adverse impacts of herbicide resistance and weeds on Australian cropping... With the continuing march of ALS (Group B) and ACCase (Group A) herbicide resistance, WAHRI molecular research sought to identify the precise gene mutations endowing resistance and develop molecular markers for their rapid identification... In Program Two, considerable success has been achieved in identifying target site mutations in the enzymes ACCase, ALS and E...
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Most of the weed seedbank remains on the soil surface where exposure to light could have an important in uence on the germination behaviour of B. diandrus and B. rigidus... Across the experiment, germinability of B. rigidus from the in-crop habitat was found to be slow and incomplete, and populations of B. rigidus collected from Minlaton and Warooka on the YP showed no germination at all in light/dark conditions at any of the tested time-points (Fig. 1)... In summary, strong differences in light/dark germinability were observed in the collected populations of B. diandrus and B. rigidus rig...
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One of the most effective weapons in the battle against annual ryegrass is growing a competitive crop... The outcome of Project ACR2/4 was assessed from this viewpoint over its eight-year life... Clover pasture - ST 0 0 36.3* 68 2000 - - 24/6 - Westonia wheat (100) 0 0 2.61 316 2001 SB C 6/6 - Arrino wheat (100) 0 0 3.62 726 2002 SB C 10/6 - Westonia wheat (100) 8 8 1.42 186 2003 NB - 2/6 - Arrino wheat (100) 8 8 3.58 541 2004 SB - 1/6 - Westonia wheat (130) 10 5 3.36 315 8 year cumulative 68 2137 w= kg ha -1wool the excellent result within this block is clearly linked to two major factors...
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The treatments included harvesting the stubble for straw, standing vs. flattened stubble, and early or late control of summer weeds... Further testing would be beneficial... We encourage measurements of soil water status as these integrate the effects of all these factors...
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Soil samples taken after harvest of the 2005 grain sorghum variety trial showed large differences in susceptibility toPratylenchus neglectus ... Results from the 0-15 cm soil depth are shown... Soil samples taken after the harvest of the forage sorghum variety trial in 2005 showed large differences in susceptibility toP. neglectus ...
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Although some herbicide mixtures can improve efficacy and broaden the spectrum of weeds controlled in sub clover based pastures, results are not directly transferable to other pasture legume species... Shaded results show acceptable damage (26 July) gp n iu mo ira T GHerbicide (r te/ha) B Spinnaker 70 g B Spinnaker 140 g E C Diuron 1500 mL P SK/C Dual Gold 500 mL P K/C Dual Gold 500 mL + Diuron 750 mL K/C Dual Gold 500 mL + Diuron 1500 mL B Broadstrike 25 g + oil B/C Broadstrike 25 g + Diuron 200 mL + oil B Raptor #45 g + oil + ammonium sulphate tB/C Raptor 15 g + Bromoxynil 370 mL + wet n...
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