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Catalogue: GRDC Media
Controlled traffic farming (CTF) can increase the average profit from cropped areas on a large-scale Western Australian farm by more than $47 per hectare, crop farm simulation modelling has shown... The results, included in a new Grains Research and Development Corporation (GRDC) Controlled Traffic Farming fact sheet, were based on crops yielding 1.2 tonne per hectare on a typical farm in the State's western central grainbelt in 2012... Department of Agriculture and Food (DAFWA) researcher Paul Blackwell said the research, funded by Caring for Our Country, showed that about three-quarters of the profit gained came from improved yield and grain quality...
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Catalogue: Ground Cover
Mouldboard ploughing could help lift yields in sandy soils.. Trials in WA show mechanical soil inversion could reduce soil constraints and herbicide-resistant weeds in sandy soils By Nicole Baxter Key points Researchers say inverting sandplain soils using a mouldboard plough or rotary spader once every 10 to 15 years could help manage 'hostile' subsoils, non-wetting sands and herbicide-resistant weeds... Dr Davies says deep-ripping to remove compaction resulted in similar increases in productivity, but the added benefits of mouldboard ploughing include improved weed control, reduced soil water repellence and an opportunity to increase soil pH through lime incorporation...
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Catalogue: GRDC Final Reports
pH measurements taken from wet and dry soils can vary if we measure the pH in water because the soil has a "background" salt concentration... To minimise the effect of salt concentration in soil on pH values, pH is now measured in 0.01 molar calcium chloride... As soil testing for phosphorus was originally conducted on the top 10 cm of soil, so the soil pH was only measured for the top 10 cm...
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Catalogue: GRDC Final Reports
Gap analysis (the difference between potential and actual yields) calculated during this project showed that canola yields often under-performed by 0.3 to 1.4 t/ha across the sandplain... The addition of clay to water repellent soils has been widely adopted on the south coast sandplain... In terms of better soil diagnostics, there is increasing interest by farmers in being able to map differences in plant available water (PAW) across their paddocks...
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Catalogue: Ground Cover
Experience builds strategies for water-repellent soil.. Recent research indicates that some formulations only work on certain soil types, such as the forest loamy gravels or on firmer soils with reasonable clay content, and are less effective on repellent sands... The results indicate a 55 per cent chance of achieving a yield increase of 400kg/ha or more in year one...
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Catalogue: GRDC Final Reports
Through targeted research and review, the project was able to deliver key management strategies to prevent, ameliorate and manage subsoil constraints and demonstrate the long-term benefits of these on productivity and profitability... The project has clearly demonstrated the long-term benefits from ameliorating induced constraints such as acidity and compaction, with cereal yield benefits commonly of the order of 6-40%... The project has demonstrated the long-term benefits that accrue from maintaining soils in good condition, providing farming system and sustainability benefits...
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Catalogue: GRDC Updates (West)
Thanks must go to everyone who has submitted papers and presented at the 2004 Agribusiness Crop Updates... There was little graminaceous plant material available on which aphids could survive, so none were recorded in the wheat blocks at either site until the end of August, by which time most plants had reached GS 41-47 (booting)... In order to provide faster data transmission between the web server and the user, graphical presentations (e.g. bar charts) are presented to the user if and only if the user requests...
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Catalogue: GRDC Media
Controlled traffic farming (CTF) can increase the average profit from cropped areas on a large-scale Western Australian farm by more than $47 per hectare, crop farm simulation modelling has shown... The results, included in a new Grains Research and Development Corporation (GRDC) Controlled Traffic Farming fact sheet, were based on crops yielding 1.2 tonne per hectare on a typical farm in the State's western central grainbelt in 2012... Department of Agriculture and Food (DAFWA) researcher Paul Blackwell said the research, funded by Caring for Our Country, showed that about three-quarters of the profit gained came from improved yield and grain quality...
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Catalogue: GRDC Research Summaries
" Delivering agronomic strategies for water repellent soils in WA.. Existing agronomic options are available to manage water repellent soils including furrow sowing, use of soil wetters, spreading and incorporation of clay rich subsoil and alternative land use options... 3) An extension program designed to empower growers and grower groups to identify the severity of non-wetting soils, the likely impact on grain yield, and the profitability of management strategies including an assessment of the drivers, barriers and extent of grower practice change...
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Catalogue: GRDC Research Summaries
" Delivering agronomic strategies for water repellent soils in WA.. Existing agronomic options are available to manage water repellent soils including furrow sowing, use of soil wetters, spreading and incorporation of clay rich subsoil and alternative land use options... 3) An extension program designed to empower growers and grower groups to identify the severity of non-wetting soils, the likely impact on grain yield, and the profitability of management strategies including an assessment of the drivers, barriers and extent of grower practice change...
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