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Catalogue: GRDC Updates
In commercial practice in Australia the implementation of precision agriculture (PA) has in common the use of spatially-aware technologies made possible through the use of global positioning systems (GPS)... Although PA technology has been available in Australia for more than a decade, it has been estimated that only around 3% of Australian grain growers are using some form of the technology (Price, 2004)... The work has been carried out with funding from the Grains Research and Development Corporation and CSIRO Sustainable Ecosystems...
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Catalogue: GRDC Media
Australian research over 20 years has shown controlled traffic farming (CTF) can improve grain quality and increase grain yields by two to 16 per cent if there are no other limiting subsoil constraints... CTF systems alleviate soil compaction constraints and can deliver unique operating efficiencies and agronomic opportunities... The Fact Sheet provides practical information on setting up a CTF crop production system, including aspects such as management zones, machinery operating widths, field layout and tillage systems...
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Catalogue: GRDC Final Reports
The project "From Controlled Traffic Farming (CTF) and Raised Bed Farming (RBF) to Information Rich Agriculture (IRA)" has achieved the SIP09 goal of Managing Variability by understanding causes, identifying solutions and helping growers to apply these spatial technologies... Variability is measured at the necessary scale with yield monitoring and high resolution imagery and topography... The project has provided the grains industry with a clear direction into the information age for increased profitability and sustainability...
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Catalogue: GRDC Final Reports
Research is required to understand the question of temporal stability in patterns of spatial variation in grain protein... In the course of this project, a collaboration was established with Viterra which is interested in selective harvesting both as a means of gaining greater control over the characteristics of parcels of barley sent for malting, and also on the basis that a parcel of grain with a narrow range of variation in protein content is more highly regarded than one with a wide range... Given the poor performance of the protein sensors, these results do not disprove the concept either...
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Catalogue: GRDC Publications
It is important to remember that there are many ways in which PA can be adopted and used to make or save money, improve timeliness or environmental management and to carry out onfarm trials... If a grower purchases a GPS unit using one system and then changes to one using the other system, locations will not be translate accurately... Growers are not confident in using the currently available indices in making cropping decisions...
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Catalogue: GRDC Factsheets
When first shifting to variable rate inputs, start with those that are not time-critical such as applying lime, gypsum or top-dressed nitrogen or potassium... In-paddock variation can be measured and mapped at harvest and during the growing season while crops are growing... But more detailed and accurate zones are produced using statistical software packages that combine different layers of spatial data (such as yield and EMI maps, see Figure 2)...
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Catalogue: GRDC Factsheets
When first shifting to variable rate inputs, start with those that are not time-critical such as applying lime, gypsum or top-dressed nitrogen or potassium... In-paddock variation can be measured and mapped at harvest and during the growing season while crops are growing... But more detailed and accurate zones are produced using statistical software packages that combine different layers of spatial data (such as yield and EMI maps, see Figure 2)...
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Catalogue: GRDC Factsheets
When first shifting to variable rate inputs, start with those that are not time-critical such as applying lime, gypsum or top-dressed nitrogen or potassium... In-paddock variation can be measured and mapped at harvest and during the growing season while crops are growing... But more detailed and accurate zones are produced using statistical software packages that combine different layers of spatial data (such as yield and EMI maps, see Figure 2)...
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Catalogue: GRDC Final Reports
The maps can be used to assess how much variation is needed for PA to be profitable and identify areas of paddocks responsive to inputs... While the results will go some way towards informing the debate about the profitability of PA, it illustrates that the use of, and benefits from, PA technology vary from farm to farm - in line with farmer preferences and circumstances... A new approach to thinking about management zones as responsive/unresponsive to inputs, rather than the traditional approach of static zones based on average yield performance...
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