slide1

    09005: Cutting phosphorus inputs into waterways

    Most common phosphorus fertilisers are very soluble, designed for lower rainfall areas. In high rainfall areas phosphorus can be easily washed into waterways where it remains dormant in the sediments until used as food for algae when conditions are favourable. Courtesy Department of Agriculture and Food, Western Australia
    Most common phosphorus fertilisers are very soluble, designed for lower rainfall areas. In high rainfall areas phosphorus can be easily washed into waterways where it remains dormant in the sediments until used as food for algae when conditions are favourable. Courtesy Department of Agriculture and Food, Western Australia

    Phosphorous loads from urban and agricultural activities in coastal plain catchments are threatening the health of the Swan-Canning, Peel-Harvey and Vasse-Wonnerup estuaries and the Leschenault and Hardy inlets.

    The Environmental Protection Authority is working with government and industry to develop guidelines for phosphorus fertiliser use on the Swan and Scott coastal plains.

    These guidelines propose to change agricultural use of fertilisers on the coastal plains and urban use fertilisers across the state.

    Soil amendments and low water soluble phosphorus fertilisers are also being evaluated and demonstrated as part of this project.

    Investment: $ 610 177
    Delivery organisation: Environmental Protection Authority
    Project duration: September 2009 - December 2011
    Location: Statewide (urban component), Swan and Scott coastal plains (agricultural component)

    More information

    Return to previous page