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Minimum tillage

Catalogue: GRDC Updates
A subset of the data showing the effects of stubble cover and grazing on summer water storage is reported ... Infiltrometer measurements taken in autumn 2010 showed that although grazing had reduced infiltration rates relative to the un-grazed control, infiltration in the un-grazed canola paddock surrounding the experiment was just as low... Grain yield of canola (Tawriffic TT sown 15 April 2010) sown over grazing treatments at Temora, and PAW measured at canola maturity on 12 November 2010...
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Catalogue: GRDC Updates
Many previous studies suggest that the timing and quantities of P release vary and are not well explained by the total amount of P or the ratio of carbon (C):P in the residues... Previous work indicates that as plants take up 'luxury' P they store this as orthophosphate... At first glance, these results suggest that following the first significant summer rainfall event, the majority of stubble P would be released from the stubble...
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Catalogue: GRDC Updates
Effect of herbicides - Discs are not supported by herbicide labelling at this point so any recommendation would be considered off-label with associated liability... Work is ongoing to consider options for future labelling for herbicide use with discs... Consider timing of seeding to the conditions that will be expected a. Beans and canola sown early into dry stubble will often have less pinning issues because dry, brittle stubble is cut easier b. Cereals planted later into damp stubbles are at risk of pinning because of poor cutting performance i. Pay particular attention to maintenance of the disc as they are not as forgiving as knife-points if improperly maintained...
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Catalogue: Ground Cover
Preliminary results from a trial in the south-east region of South Australia suggests higher water rates (of up to 100 litres per hectare in a trifluralin/Avadex Xtra mix or 150L/ha for other products) can improve the efficacy of pre-emergent herbicides in stubble-retained systems... Early results from the project suggest higher water rates do improve the efficacy of ryegrass control, particularly with Sakura ... We want to look at the differences between herbicide mixes, so we are hoping to conduct the trial again this year as there may have been environmental effects on herbicide efficacy...
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Catalogue: GRDC Media
To determine the full extent of the issue the GRDC are funding a larger national survey to determine the geographical spread of fungicide tolerance... During 2015 the GRDC will fund your 2014 canola stubble to be screened to determine if it is harbouring fungicide tolerant blackleg... Keep browsing 0 Responses to GRDC funding canola stubble screening for fungicide tolerant blackleg..
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Catalogue: GRDC Factsheets
Strategies to manage winter crop stubbles without reaching for the matches Conservation farming combines minimum or no tillage, full stubble retention and diverse crop rotations... From the work, it was postulated that when large volumes of stubble are spread, the chaff and straw interacts, increasing the overall bulk of material affected by air-drag... Using stubble treatments such as cabling, rolling and slashing result in up to 90 per cent control and the stubble is retained...
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Catalogue: GRDC Factsheets
" yellow leaf spot fact sheet September 2011 sOutherN regION Management to reduce the risk of yellow leaf spot a break from wheat-on-wheat, stubble management and growing resistant varieties are important risk-reducing practices for the stubble-borne disease yellow leaf spot... r a K N a H s a H s i N a M : o t o H p Yellow leaf spot causes tan-coloured lesions on the leaves that are surrounded by yellow halos... typical tan-coloured lesions surrounded with yellow halos on leaves and distinctive black fruiting bodies on stubbles are good diagnostic indicators of yellow spot infection...
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Catalogue: Ground Cover
A pulse disease specialist is encouraging mixed farmers who are planning to graze animals on lupin stubbles to check the stubble carefully for signs of phomopsis to avoid the onset of lupinosis... New South Wales Department of Primary Industries plant pathologist Dr Kurt Lindbeck says phomopsis of lupin is normally associated with lupin stubbles and summer rainfall: "The disease can also develop on green lupin plants this is rare," he says... Dr Lindbeck encourages growers who suspect that phomopsis may have infected their lupin stubbles to have the symptoms confirmed by their local agronomist...
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Catalogue: Ground Cover
A pulse disease specialist is encouraging mixed farmers who are planning to graze animals on lupin stubbles to check the stubble carefully for signs of phomopsis to avoid the onset of lupinosis... New South Wales Department of Primary Industries plant pathologist Dr Kurt Lindbeck says phomopsis of lupin is normally associated with lupin stubbles and summer rainfall: "The disease can also develop on green lupin plants this is rare," he says... Dr Lindbeck encourages growers who suspect that phomopsis may have infected their lupin stubbles to have the symptoms confirmed by their local agronomist...
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Catalogue: Ground Cover
Do not rule out burning as an effective management tool, particularly with windrow burning rather than whole-paddock burning.. Our soils have more organic matter on the surface, are more friable and better retain water... There are ways to burn stubble that can still provide a good amount of surface cover to achieve all the benefits of retaining stubble, but that also give us all the benefits we know are available through the use of fire...
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