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heavy stubble load

Catalogue: GRDC Media
New research has shown that trifluralin sprayed with higher water rates of about 100L/ha improves the herbicide's effectiveness on paddocks with heavy stubble loads, regardless of the spraying speed... Dr Borger said that in trials conducted at Cunderdin and Wongan Hills in 2011, the amount of annual ryegrass which survived 2.5L/ha of trifluralin decreased from 19 to 14 per cent when the water rate was increased from 50 to 100L/ha... " the results show that trifluralin should still work well in most areas of WA, as long as it is applied correctly, and that cases of reduced effectiveness will usually be due to lower water rates on heavy stubble loads, not resistance," Dr Borger said...
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Catalogue: GRDC Publications
The stubble management decisions each of these growers made in 2010-2011 were unique to the individual and were influenced by the combination of experiences, cropping systems, agronomic and logistic challenges, and commitment to full stubble retention... The value of grazing crop stubbles to farm profitability was overestimated by the ME value of the intake the value of grazing crops cannot be predicted using energy intake from stubble... Finally the burning of stubbles also contributed to weed 26Australian Glyphosate Sustainability Working Group, Australian Herbicide Resistance Institute (2013), 9 Oct 2013...
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Catalogue: GRDC Publications
Ultimately I don't believe this has been to the detriment of the soil as we are travelling on rm ground and getting a better mix, a leveller paddock and better conditions to sow into with our Simplicity Bar'... We have used the machine on stubble in January 2010 and had massive wind storms a day or so later with no lifting of the soil whatsoever which was a big bonus compared to neighbouring sheep grazed and bare paddocks.".. Yield increases for wheat-on-wheat sowing into standing stubble were measured on 7 out of 10 sites over 4 years (Table 1)...
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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 Media
Stubble presents deep sowing option.. Many growers have cultivated in recent months to tidy up wheel tracks, hard-to-control weeds and very heavy stubble or failed crops - the legacy of last year's sodden winter-crop harvest - as well as to reduce the disease risk from stubble-borne diseases such as crown rot, Dr McMullen said... "Growers that have maintained stubble have had the option to deep sow on to moisture, whereas those that have cultivated the surface may be better off dry sowing prior to a predicted rainfall event," Dr McMullen said...
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