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Catalogue: Ground Cover
"In preliminary glasshouse and field trials, we have found that acacias inoculated with beneficial strains of a nitrogenfixing bacteria called Bradyrhizobium survive better and grow faster than un-inoculated acacias," Dr Thrall says... Of particular interest is the extent to which re-introduction of beneficial organisms helps plants to withstand environmental stresses like soil salinity and competition with exotic weeds... Keep browsing 0 Responses to Looking underground for revegetation solutions: re-introduction of beneficial organisms helps plants to withstand environmental stresses like soil salinity and competition with exotic weeds by Sophie Clayton..
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Catalogue: GRDC YouTube channel
3.74: GCTV Ep#8 Liming Acid Soils 4.08: Narrator: Soil acidity is wide spread throughout Western 6.51: Australia 9.29: 4 to 500 million dollar loss in annual production... Its why the Grains Research and Development 14.49: Corporation has previously supported soil acidity 17.39: research in the state, and why currently the federal government 21.99: program is contributing funding to a joint state government 25.599: and private enterprise project... 252.67: Narrator: WA has a number of lime pits along the coast 256.63: and this one at Lancelin about an hour and half 259.079: drive north of Perth has one of the largest marketing footprints, supplying lime to farms 264.05: up to 600 kilometres away...
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Catalogue: GRDC Final Reports
A disease control model for crown rot in Victoria and South Australia (SA) which provides crop management recommendations to reduce the build-up of Fusarium inoculum and avoid sowing into high disease risk situations... Crown rot is highly spatially variable, so intensive and extensive sampling programs were undertaken to assess the the reliability of results produced using current sampling protocols... Intensive stubble and soil sampling was used to assess the scale of spatial variability of crown rot and whether taking soil cores in a row crop was causing "spikes" in results...
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Catalogue: GRDC Publications
" Goondiwindi GRDC Grains Research Update Day 1 - Tuesday 4 th March Time Topic Speaker (s) 10:00 AM James Clark (Chair Northern Welcome Panel GRDC) 10:10 AM General plenary (Supported by North West Local Land Services) 10:10 AM 10:40 AM.. Overall, both models are acceptable for modelling soil evaporation over a range of soils and seasons provided accurate soil physical properties and starting water states are known... Overall, populations increased five times compared to before planting the summer crops, but remained below 250/kg soil (Figure 4)...
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Catalogue: GRDC Updates
Over the three survey years this allowed 307 comparisons of Fusarium DNA levels assessed at sowing using PreDicta B with the actual incidence of infection that developed by harvest as determined from laboratory plating (Table 1)... The predicted risk of crown rot development at sowing using PreDicta B was within one category of the actual level of infection measured after harvest in 121 paddocks (39%, light grey shading)... In other regions a shallower sampling depth (0-10 cm or 0-15 cm) is recommended with PreDicta B. In 2013 we aimed to determine if this deeper sampling depth in the northern region, to account for RLN populations deeper in the soil profile, is potentially compromising the accuracy of PreDicta B to measure levels of other soil-borne pathogens including Fusarium ...
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Catalogue: GRDC Publications
Nematodes reduce yields in intolerant wheat cultivars Nematodes reduce the amount of water available for plant growth Nematodes impose early stress that reduces yield potential despite the availability of water and nutrients Maintaining a low nematode population improves crop yields.. Overall, populations increased five times compared to before planting the summer crops, but remained below 250/kg soil (Figure 4)... Data is presented as an average of the added CR and no added CR treatments for this site...
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Catalogue: GRDC Factsheets
Three top tips to stop crown rot: rotate crops, observe plants for browning at the base of tillers and test stubble and soil... Reducing the risk before planting Reducing inoculum levels is vital to managing crown rot... In the short term these practices can increase infection rates in the next Figure 6: Crown rot distribution cereal crop, as broken up in infected cereal stubble...
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Catalogue: GRDC Publications
Over the three survey years this allowed 307 comparisons ofFusarium DNA levels assessed at sowing using PreDicta B with the actual incidence of infection that developed by harvest as determined from laboratory plating (Table 1)... The predicted risk of crown rot development at sowing using PreDicta B was within one category of the actual level of infection measured after harvest in 121 paddocks (39%, light grey shading)... Some newer wheat varieties have a measurable improvement in their tolerance to crown rot but these current levels are not a complete solution to crown rot...
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Catalogue: GRDC Factsheets
Three top tips to stop crown rot: rotate crops, observe plants for browning at the base of tillers and test stubble and soil... Reducing the risk before planting Reducing inoculum is vital to managing crown rot... Unfortunately cultivation spreads infected residues, which may increase plant infection rates counteracting any benefits from increased residue breakdown...
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Catalogue: GRDC Media
Current research is helping boost the accuracy of the PreDicta B test in assessing crown rot risk by fine tuning soil sampling techniques and recommendations... PreDicta B is a good technique for identifying the level of risk for crown rot and other soil-borne pathogens prior to sowing within paddocks but requires a dedicated sampling strategy and is not a simple add on to a soil nutrition test... There is no detection issue with the current PreDicta B tests that were resulting in an underestimation of crown rot risk...
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