GRDC Grains Research Update Adelaide 2018
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This page contains update papers presented at the .
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Presented at
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Eyespot expression in many areas of South Australia (SA) in 2017 was generally low in cereal crops due to the late start to the season, followed by low rainfall until mid to late tillering. In these areas (or paddocks), eyespot inoculum levels, and so the eyespot risk for 2018, are likely to be reduced. In areas of the state (and in paddocks) which...
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Calculating plant available water content (PAWC) can be challenging and it can vary from year to year depending on crop growth. Normalised difference vegetation index (NDVI) imagery is starting to give a good indication of evapotranspiration change across a field. New sensors, such as canopy temperature and 10m towers for inversion monitoring, are ...
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There is opportunity to exploit variation in phenology between barley varieties to maximise yields. Higher yields are possible with new barley varieties Compass, Spartacus CL, and RGT Planet with contrasting yield structures. RGT Planet may be more prone to quality downgrading than other barley varieties....
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Science communication is effective when it helps to create positive and evidence-based change in peoples’ lives; for grain growers, that means they have the ability to make decisions that increase their profitability and sustainability. • Science communicators are most effective at creating positive change when they listen to and understand the nee...
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Soil salinity is a widespread problem throughout the Australian wheat belt, greatly reducing wheat growth and yields. H+-PPase genes have been used to enhance the growth and salt tolerance of several plant species, including barley. In this project, 15 H+-PPase (TaVP) genes were identified in bread wheat, with expression levels varying between tiss...
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Half of the weather models surveyed had drier predictions for autumn throughout South Australia (SA). During 2017, models performed satisfactorily at predicting the weather, despite the early El Niño prediction being wrong. Modern computer climate models look at much more than just El Niño and La Niña when making their predictions....
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Treatments combining deep ripping with surface applied nutrition (synthetic fertiliser or chicken litter) delivered the highest marginal returns (additional income less treatment costs), ranging from $934/ha to $1249/ha over three years. Depending on treatment cost, these delivered return on investment (ROI) ranging from 142% to 521% over three yea...
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Implementing controlled traffic on the mallee soils of the low rainfall zone will not change crop yields noticeably in the short term. Long term impacts on crop performance are unknown. • Implementing controlled traffic on the deep red earths of southern NSW should increase crop yields substantially. • Operational advantages of controlled traffic (...
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Peat slurry inoculants applied to seed perform consistently well; other formulations can also provide good nodulation, but outcomes are dependent on the carrier and sowing conditions. There is little data on the survival of rhizobia in different formulations when dry sown. Some of the first data for rhizobial survival under dry sowing conditions in...
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In a no-till (NT) system, grain yield was maximised at moderate amounts of stubble; there were no benefits of soil water conservation with high amounts of stubble. Timing nitrogen (N) supply modified crop response to tillage and stubble by fine-tuning crop growth rate between stem elongation and flowering, and was regulated by tillering capacity....
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