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rhizoctonia

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Catalogue: GRDC Media
Select a seeding system for your soil.. "When selecting for a higher SBU system, there are many factors to consider including single or double shoot, distinct split-rows or a wide band sowing, integrated opener design or wing attachment for an existing opener, and fertiliser placement relative to the seed zone," Dr Desbiolles said... "The best treatment, reaching over 90 percent emergence, in the Moorlands trial was obtained by adding a shallow operating scooping share ahead of a triple disc seeding system to clear away the top 3-4cm of soil into the inter-row zone and assist with placing seeds into moist soil," Dr Desbiolles said...
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Catalogue: GRDC Research Summaries
We propose to use a polyphasic approach involving (i) comparative analysis of high- and low-suppressive soils, (ii) pre-treatment or prior exposure of soils to factors that have been attributed to the development of disease suppression and (iii) amplification of target regions prior to high-throughput sequencing... The use of direct soil DNA/RNA extraction technologies will help overcome the bottlenecks associated with the culture based methods... We propose to establish close working links with other projects in SBI-Theme 3 for field sites used, consistency in methodologies and complementary research approaches...
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Catalogue: GRDC Factsheets
Plants with Rhizoctonia have shortened brown 'spear-tipped' roots... Rhizoctonia cannot be eliminated but can be suppressed to a level that doesn't cause economic loss... n seasons with an early break, remove volunteer plant growth as soon as possible, using either cultivation or herbicides help roots avoid inoculum through encouraging faster early growth Rhizoctonia can only attack very young plant roots so anything that increases early root growth can significantly reduce disease..
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Catalogue: GRDC Factsheets
experiments in southeastern Australia have shown that canola provides an effective break following cereal crops... influence of rotation Recent research has shown a strong influence of rotation choice on the build-up of inoculum... Cereals provide the most rapid increase in inoculum...
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Catalogue: GRDC Research Summaries
Soils that are able to withstand or reduce the extent of crop damage from a soil-borne disease incursion are referred to as disease suppressive soils... While the soils have been identified in all grain production regions little is known about the soil bioogy that confers disease suppressive qualities on a soil... The development of new tools to monitor disease suppressive soils will ultimately benefit farmers by allowing management practices to be linked to transferring or improving disease suppressiveness in soils...
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Catalogue: Ground Cover
Seeding method shown to influence Rhizoctonia.. Trials in the southern region have found the type of seeder soil openers and seed treatments used can influence Rhizoctonia inoculum soil levels and position in the soil profile... Dr Alan McKay from the South Australian Research and Development Institute (SARDI), Dr Jack Desbiolles from the University of South Australia (UniSA) and Dr Gupta Vadakattu from CSIRO have been working on trials through the GRDC and the South Australian Grains Industry Trust (SAGIT) to assess the impact of different types of seeder soil openers on Rhizoctonia levels during seedling establishment...
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Catalogue: Ground Cover
Little could the couple have realised that it would be 30 years before the trial program would finally wind up, and by then be cemented into history as one of the most remarkable sources of knowledge on Australian dryland cropping... The new concept of direct-drilling crops using a non-residual herbicide (Sprayseed ) instead of ploughing was measured against conventional cultivation... "And if we take outcomes from the Mallee Sustainable Farming project alone, we estimate that the benefits of modifying and adopting the research findings from the Avon site amount to about $500 million each year in increased grain production and reduced wind erosion," Dr Rovira said...
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Catalogue: Ground Cover
Summer weed control reduces root disease.. Controlling weeds and volunteers during the month before sowing, after an opening rain, is a well-known method of reducing the incidence of the root disease Rhizoctonia in the following crop... "We wanted to see if time of control and type of weeds controlled had an effect on the level of inoculum carried over to the following crop," Dr Vadakattu explains...
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Catalogue: GRDC YouTube channel
" GRDC Grains Research Updates 22-23 February 2012, Southern Region, Adelaide SA. Alan McKay 17 September 2013 Alan McKay, SARDI, talks about Rhizoctonia and its effects on Australian cropping systems, with a particular emphasis on new measures to address the problem... Rhizoctonia solani K hn AG-8 is a difficult disease to manage, but current research projects funded by GRDC and SAGIT are making significant progress towards getting on top of this disease... Technology to reduce spray drift GCTV: Drift Reducing Technology..
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Catalogue: GRDC Publications
In summary, 20 trials have now recently been undertaken across a number of seasons and locations in NSW. None of them have demonstrated S responses in yield or oil %. This does not exclude deficiency and yield penalties from occurring but does highlight that the frequency and the likelihood is not high... In summary, using Yield Prophet as a way of increasing soil water knowledge is more difficult to trial than probes... In summary, the growth in the use of probes to understand soil water is easily explained using the framework above...
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