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GRDC Updates (West)

Here you will find the papers presented at the GRDC updates in the Western region

Registered items

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...
The relative effectiveness was calculated at the effectiveness of N at a depth compared with the effectiveness of N in the top-soil (0-0.2 m layer)... (A assuming Bulk density of 1.5), B % of sites measured to that depth not of the 474 cores).. The trials necessarily included whatever deep soil N the crops could access and so the responses will be weighted by that contribution from deep N. For tools such as Yield Prophet , the N at depth is usually measured and included in the model the roots for most of the soils in Yield Prophet are set to unconstrained growth...
Bass grain is plumper than Baudin grain (being similar to Vlamingh)... Long term MET results suggest that the grain yield of Commander is similar to Buloke in all Agzones... Grain from Frankland, Kendenup, Kojonup, Narrogin, Jerramungup and Lake Grace was not assessed for grain brightness...
GRDC Taxonomy:
The deeper soil sampling to 30 cm improved the relationship for S canola but not for wheat where rate of S leaching and potential yield appear to be important... The aim of the paper is to define the soil test-grain yield response relationships for P, K, S and N with wheat, canola and lupin grown in WA... Soil N supply was calculated as amount of N extracted by soil test to depth of 45 cm plus predicted growing season N mineralisation based on levels of soil organic N (Anderson, unpublished data)...
GRDC Taxonomy:
The project is funded by the Grain Research Development Commission, The Department of Food and Agriculture (DAFWA) and hosted by the Faculty of Natural and Agricultural Sciences, University of Western Australia (FNAS)... Crop Updates is a partnership between the Department of Agriculture and Food, Western Australia and the Grains Research & Development Corporation 134.. Brown manuring effects on a following wheat crop the central wheatbelt J. Russell, Department of Agriculture and Food, Western Australia, Northam; J. Eyres, G. Fosbery and A. Roe, ConsultAg, Northam in..
Crop Updates is a partnership between the Department of Agriculture and Food, Western Australia and the Grains Research & Development Corporation 36.. We report results from the advanced yield trials conducted at Bolgart, Dalwallinu, Pingrup and Merredin and the black spot resistance evaluated at Medina in 2008... With the availability of more resistant varieties there are prospects of renewed interest in the crop, but the new resistant varieties are poorly adapted to Western Australia and their seed quality does not match the earlier releases (Sona and Heera) that are unfortunately very s...
Summer rainfall in excess of 25-30 mm in a single event is usually stored in the subsoil, so a rainfall event of 100 mm would leave about 70 mm in the soil... Increased soil water at sowing may lead to higher yields, particularly in soils with higher soil water holding capacity, or in dry growing seasons... Modelling studies for the NAR suggest that on average, soil water storage on May 1 is reduced by about 10 mm if summer weeds are not controlled (Table 3)...
Grain yield showed a linear relationship to phosphorus uptake.. The opposite occurred for treatments with a continuous wheat history; ryegrass biomass tended to be higher where lime was applied compared to no lime treatments at an equivalent wheat shoot biomass.. Our results indicate that grain yield response to the main treatments and P treatments was driven by growing conditions prior to anthesis...
GRDC Taxonomy:

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