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soil erosion

Catalogue: GRDC Updates (North)
The factors are important in trying to understand the trends measured in this project... Grains Research Update - August 04 Wellington investigations to either confirm traditional research or provide an opportunity to develop scientifically sound methodologies to compare what is happening in a real world situation... I believe using less fertiliser is better, to encourage better micro organism activity, but that's my guess...
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Catalogue: GRDC Updates (South)
The factors are important in trying to understand the trends measured in this project... Grains Research Update - August 04 Wellington investigations to either confirm traditional research or provide an opportunity to develop scientifically sound methodologies to compare what is happening in a real world situation... I believe using less fertiliser is better, to encourage better micro organism activity, but that's my guess...
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Catalogue: Ground Cover
Figure 1: Mean yuield (t/ha) of 20 years (1983 - 2003) cropping comparing tillage systems.. When land has been cropped for many years with multiple cultivations per crop, research is showing that it can take at least three years before the advantages of no or reduced tillage show up in extra yield or more organic soils... Reduced tillage treatments - no-till, reduced-till (one to three passes per fallow of a chisel plough, blade plough and rod weeder) and stubble mulch (two to five passes per fallow of a chisel plough, blade plough and rod weeder) - convincingly out-yielded the conventional aggressive tillage system (involving two to five passes per fallow of a disc plough, scarifier and cultivator) by an average of 24 to 30 per cent per crop over the first 20 years...
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Catalogue: GRDC Research Summaries
" Flexible farming systems to meet the challenges of farming the southern Mallee and northern Wimmera.. Myths busted in Wimmera and Mallee clay soil project.. For growers in many grain areas across Australia, the switch from full cultivation to minimum or no-till cropping was spurred by an expansion in farm size, soil erosion and unreliable yields...
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Catalogue: GRDC Media
Strategic tillage "The key to successful no-till farming into the future is likely to be flexibility and the introduction of strategic tillage," says Dr Yash Dang, a GRDC-funded researcher at the Queensland Department of Science, Information Technology, Innovation and the Arts (DSITIA) in Toowoomba... Dr Dang has been evaluating the effects of strategic tillage in no till systems on weeds and soil health. ".. Strategic tillage allows growers to keep most of the associated soil health and labour benefits of no till, with many of the advantages of a tillage system," says Dr Dang...
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Catalogue: GRDC Media
Strategic tillage "The key to successful no-till farming into the future is likely to be flexibility and the introduction of strategic tillage," says Dr Yash Dang, a GRDC-funded researcher at the Queensland Department of Science, Information Technology, Innovation and the Arts (DSITIA) in Toowoomba... Dr Dang has been evaluating the effects of strategic tillage in no till systems on weeds and soil health. ".. Strategic tillage allows growers to keep most of the associated soil health and labour benefits of no till, with many of the advantages of a tillage system," says Dr Dang...
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Catalogue: Ground Cover
Dr Schoenau discussed his studies, which took place in a climate of semi-arid to sub-humid climate with 300 to 400 millimetres of annual rainfall, at the South Australian No-Till Farmers Association"s annual conference... Over the long term, the increased surface residue cover was shown to protect the soil from nutrient losses caused by soil erosion... "Greater water retention under no-till treatments resulted in the soil being saturated for longer and more nitrogen was lost due to de-nitrification, while the higher soil moisture improved phosphorus availability by allowing greater movement of phosphate to root surfaces."..
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Catalogue: GRDC Updates
Millet can have a positive effect on following wheat yields, provided the millet crops are sown early in spring and terminated once 50 % cover is achieved... The results showed that if millet was sown early and removed early (40 days after sowing) there was a neutral or positive impact on wheat yield compared to a traditional fallow... The research shows that it is, differences in wheat yield when comparing the MF millet and CF traditional no-till fallows is significant and could be used to offset the costs of millet establishment...
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Catalogue: GRDC 2014 Research Summaries
Australian grain growers have progressively adopted a number of best management practices in order to minimise soil tillage, which is one of the main causes of soil erosion, soil compaction and soil organic matter loss... Little is known about how the increased application of herbicides affects soil biota and soil functions that sustain crop growth and ecosystem services such as crop residue turnover, water holding capacity, soil carbon storage and nutrient cycling... The project will address current knowledge gaps regarding the impact of herbicides on soil biota in all three growing regions of the Australian grains industry. The project objectives include determining the effects of different herbicides on not only soil biological communities and biodiversity, but also quantifying their effects on soil functions critical to ecosystem health...
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Catalogue: GRDC Publications
" Impact Assessment: An Economic Analysis of GRDC Investment in Western Australian No Tillage Farming Association Executive Summary............................................................................................ In the short term some of these non-valued on-farm benefits will be captured in the yield gain assumed, through reduced loss of nutrients and higher organic matter, moisture holding etc, but the partitioning of the yield gain to different sources has not been attempted... The relationship between the management change to no-till and the soil and dust export reduction are difficult to make assumptions about for valuation purposes...
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