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Catalogue: Ground Cover
Kevin Kilby is hoping research will eventually come up with a cheaper, more effective way to control fallow weeds like fleabane... The coming season has the potential - courtesy of well-soaked soils - to deliver above-average yields, but Kevin is quick to point out that recent history has shown nothing can be taken for granted... Kevin soil-tests about 40 per cent of his paddocks to gain a broad picture of his nutrient needs, but hasn't invested in variable-rate technologies, saying weed control has the biggest influence on his crops' performance and that, for the moment, remains the priority...
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Catalogue: Ground Cover
By using the right amount of fertiliser at sowing and monitoring crop requirements throughout the season, growers can ensure nutrient-rich water doesn't escape into nearby rivers and simultaneously improve crop profitability," Dr Nash says... Better defining the relationships between inorganic soil nitrogen, fertiliser application rates and yield for different seasonal conditions is important. ".. Researchers found: Dr Nash says that minimising nitrogen applications at sowing also reduces non-redeemable costs and defers some expenditure decisions until later in the season when other factors affecting crop performance, such as moisture limitations or waterlogging, are evident. "..
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Catalogue: Ground Cover
The hot, dry conditions of September and October have largely curtailed the yield potential of most crops, which were already struggling with a difficult season... A number of steps are being implemented to maintain, with our partners across the grains sector, an effective R&D program... It is important to note that, given the severity and widespread nature of this drought, the GRDC"s ability to minimise the impact on R&D is a consequence of a reserve policy that has enabled us to build up the financial buffer that we now have at our disposal...
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Catalogue: Ground Cover
Northern region Grains Research Updates coordinator John Cameron reflects on the vast changes that researchers and growers have implemented over the past two decades, and the one problem that just will not go away - weeds.. No-till has become crucial to northern grains production but faces a major weed-control challenge... In the short term, the no-till system will be defended by tactics such as pre-emergent herbicides, double knock using paraquat, and the use of tillage when weeds cannot be or are uneconomical to control using herbicides...
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Catalogue: Ground Cover
The main risks associated with dry sowing are weed management, crop establishment and frost... Dry sowing can boost crop yields, increase sown area and reduce the risks of end-of-season heat-stress events... Dr Minkey says dry sowing is best done when weed seedbanks are low to reduce the risk of yield loss from weed competition...
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Catalogue: GRDC Research Summaries
The project will increase water use efficiency in mixed crop/livestock systems on 433 farms while concurrently improving whole farm profitability, sustainability and groundcover... It will - increase water use efficiency ($/mm rainfall) by 10.7% across participating mixed farms - increase regional profitability of $18.0 million ($42,118 per participating farmer) increase through increased stocking rate by better utilisation of feed grown (indicator will be WUE improvements at the whole farm level) and improved crop production through best agronomic practice... GRDC funded research is looking at early sowing strategies to cope with drying Autumns...
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Catalogue: Ground Cover
Zones based on water use efficiency and variable rate inputs are helping Peter Kuhlmann remain viable on his low-rainfall property near Ceduna, South Australia... At the SPAA Expo in South Australia in February, Peter explained the farming practices he uses to collect and conserve the limited rainfall received by his property... One tool to help maximise crop water use and minimise water loss is stubble retention, using: no-till with knife points - tillage beneath the row is used to help reduce the root disease Rhizoctonia; presswheels; wider row spacing - less crop competiton and allows inter-row sowing to improve seedling establishment due to protection from wind; and early and dry sowing with good seed and nutrient placement...
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Catalogue: Ground Cover
Catchment rebuild secures on-farm water.. Over the past three or four years we've had some fairly dry years and we couldn't rely on any of the dams," Mark says... Andrea says they were having to cart water from 14 kilometres away. "..
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Catalogue: Ground Cover
"Growers can save themselves a lot of time and money spent on eradication and management by preventing diseases getting into crops in the first place," said Dr Ryley, from the Queensland Department of Agriculture, Fisheries and Forestry (DAFF)... If diseases do get into the crop, knowledge about what diseases are around is the best information to be armed with, he said... For example, prevent contaminated soil or plant residues entering the property by: not letting contract headers and other machinery onto their property unless the equipment has been properly cleaned; monitoring visitors to properties - for example, ensuring visitors contact the owner or manager before visiting, not driving vehicles across the property but rather leaving them at the shed and using an on-farm vehicle; and knowing where planting seed has come from and ensuring only seed from a clean crop is used...
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Catalogue: Ground Cover
Pythium root rot is often misdiagnosed, but new research is increasing our knowledge of damage caused by the disease and offering new control options.. Now research is showing that Pythium can have a big effect on crop growth through the season, resulting in substantial reductions in productivity, even in the absence of 'damping-off'... Results from three years of field trials with wheat demonstrated that an in-furrow application of the Trichoderma inoculant at seeding resulted in: improved crop emergence; reduced levels of Pythium inoculum and root infection; and increases in yield...
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