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    Adoption of variable rate fertiliser application in the Australian grains industry: Status, issues and prospects

    Access Status
    Fulltext not available
    Authors
    Robertson, M.
    Llewellyn, R.
    Mandel, Roger
    Lawes, R.
    Bramley, R.
    Swift, L.
    Metz, N.
    O'Callaghan, C.
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Robertson, M. and Llewellyn, R. and Mandel, R. and Lawes, R. and Bramley, R. and Swift, L. and Metz, N. et al. 2012. Adoption of variable rate fertiliser application in the Australian grains industry: Status, issues and prospects. Precision Agriculture. 13 (2): pp. 181-199.
    Source Title
    Precision Agriculture
    DOI
    10.1007/s11119-011-9236-3
    ISSN
    1385-2256
    School
    Centre for Crop Disease Management
    URI
    http://hdl.handle.net/20.500.11937/8135
    Collection
    • Curtin Research Publications
    Abstract

    Variable rate application of fertiliser (VR) is a practice underpinning a profitable grains industry in Australia. We updated the extent of VR adoption through a national survey (n = 1 130) covering all grain growing regions. Three smaller regional-based surveys (n = 39-102) collected detailed information on the nature and reasoning behind the use of various forms of the technology. We analysed the constraints to the adoption of each step using adoption theory. Surveys showed that 20% of grain growers have adopted some form of VR (varied from 11-35%), up significantly from >5% found 6 years earlier. Adopters are more than likely to have larger farms with a higher area in cropping. Many non-adopters were convinced of the agronomic and economic benefits of VR. A significant proportion of growers were managing within-field variability with manually-operated systems rather than more sophisticated VR technology, and have adopted some form of VR without yield maps, preferring to use soil tests, electro-magnetic induction or their own knowledge of soil and yield variation to define management. The rate of adoption is expected to continue to rise based on greater awareness of the benefits of the technology. The constraints to adoption were technical issues with equipment and software access to service provision and the incompatibility of equipment with existing farm operations.

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