Improving nitrogen fertiliser use efficiency in wheat using mid-row banding

Graeme A. Sandral, Ehsan Tavakkoli, Felicity Harris, Eric Koetz, Simon Diffey, John Angus

    Research output: Book chapter/Published conference paperConference paperpeer-review


    Fertiliser costs represent 20% to 25% of variable costs for growing grain crops. This proportion is likely to increase with the continued decline of soil organic matter and corresponding reduction in annual soil mineralisation of nitrogen (N) (e.g.Angus and Grace 2017). In approximate terms,the N mineralisation potential in cropping soils is declining by 50% every 25 to 30 years. Soil mineralisation of N is not enough to meet crop demand, consequently N fertiliser is typically applied to wheat at sowing, stem elongation and occasionally at booting. The in-crop efficiencies of fertiliser N retrieval vary greatly, with approximately 44% in above-ground plant parts, 34% in soil and 22% not recovered, which is presumably lost (Angus and Grace 2017). Increases in the efficiency with which wheat extracts fertiliser N from the soil can result in substantial fertiliser savings.
    Original languageEnglish
    Title of host publication2018 Wagga Wagga GRDC grains research update
    Place of PublicationAustralia
    Number of pages8
    Publication statusPublished - 13 Feb 2018
    EventGRDC Grains Research Update (Wagga Wagga) - Joyes Hall, Charles Sturt University, Wagga Wagga, Australia
    Duration: 13 Feb 201814 Feb 2018 (Conference website) (Conference brochure/program)


    ConferenceGRDC Grains Research Update (Wagga Wagga)
    Abbreviated titleStrategic Steps - Enduring Profit
    CityWagga Wagga
    OtherEnsuring growers, advisors and industry stakeholders are informed about the latest research and development outcomes in their quest to improve on-farm profitability is a key role of the annual Grains Research and Development Corporation (GRDC) Updates. The GRDC Updates deliver research direct to growers, agronomists and industry. This year the Updates will offer information from the latest research and development from short- and medium-term investments that address on-farm priority issues from farming systems, agronomy, soils, weeds to pests and diseases.
    Internet address


    Dive into the research topics of 'Improving nitrogen fertiliser use efficiency in wheat using mid-row banding'. Together they form a unique fingerprint.

    Cite this