• myGriffith
    • Staff portal
    • Contact Us⌄
      • Future student enquiries 1800 677 728
      • Current student enquiries 1800 154 055
      • International enquiries +61 7 3735 6425
      • General enquiries 07 3735 7111
      • Online enquiries
      • Staff phonebook
    View Item 
    •   Home
    • Griffith Research Online
    • Journal articles
    • View Item
    • Home
    • Griffith Research Online
    • Journal articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

  • All of Griffith Research Online
    • Communities & Collections
    • Authors
    • By Issue Date
    • Titles
  • This Collection
    • Authors
    • By Issue Date
    • Titles
  • Statistics

  • Most Popular Items
  • Statistics by Country
  • Most Popular Authors
  • Support

  • Contact us
  • FAQs
  • Admin login

  • Login
  • Changes in δ15N in a soil–plant system under different biochar feedstocks and application rates

    Thumbnail
    View/Open
    93068_1.pdf (206.1Kb)
    File version
    Accepted Manuscript (AM)
    Author(s)
    Reverchon, Frederique
    Flicker, Robert C
    Yang, Hong
    Yan, Guijun
    Xu, Zhihong
    Chen, Chengrong
    Bai, Shahla Hosseini
    Zhang, Dongke
    Griffith University Author(s)
    Xu, Zhihong
    Chen, Chengrong
    Hosseini-Bai, Shahla
    Year published
    2014
    Metadata
    Show full item record
    Abstract
    The application of biochar in soils has been hypothesised to improve soil quality whilst enhancing carbon (C) sequestration. However, its effect on nitrogen (N) dynamics in the soil–plant system is still not fully understood. In the present work, N isotope composition (δ15N) was used to facilitate the understanding of the processes involved in the N cycling when biochar is applied. We evaluated, through a wheat pot trial, the effect of different application rates of two types of biochar produced from jarrah and pine woodchips on the wheat biomass at harvest and on the soil and plant C and N contents and δ15N. In addition, ...
    View more >
    The application of biochar in soils has been hypothesised to improve soil quality whilst enhancing carbon (C) sequestration. However, its effect on nitrogen (N) dynamics in the soil–plant system is still not fully understood. In the present work, N isotope composition (δ15N) was used to facilitate the understanding of the processes involved in the N cycling when biochar is applied. We evaluated, through a wheat pot trial, the effect of different application rates of two types of biochar produced from jarrah and pine woodchips on the wheat biomass at harvest and on the soil and plant C and N contents and δ15N. In addition, the potential benefit of using nutrient-saturated biochar for the soil–plant system was also investigated. Whilst biochar produced from different feedstocks had similar effects on soil and plant nutrient contents, they induced differences in wheat grain biomass and plant δ15N. The effect of the biochar application rate was more pronounced, and at rates higher than 29 t ha−1, the application of biochar decreased grain biomass by up to 39 % and potentially increased N losses. Isotopic analyses indicated that this acceleration of N dynamics had probably occurred before the stage of wheat grain formation. The application of nutrient-enriched biochar resulted in an improved wheat grain production, most likely due to the enhanced nutrient availability, and in reduced N cycling rates in the plant–soil system, which could offset the competition between biochar and plants for nutrients and could decrease adverse environmental impacts due to N losses.
    View less >
    Journal Title
    Biology and Fertility of Soils
    Volume
    50
    Issue
    2
    DOI
    https://doi.org/10.1007/s00374-013-0850-2
    Copyright Statement
    © 2014 Springer Berlin / Heidelberg. This is an electronic version of an article published in Biology and Fertility of Soils, 2014, Volume 50, Issue 2, pp 275–283. Biology and Fertility of Soils is available online at: http://link.springer.com// with the open URL of your article.
    Subject
    Environmental sciences
    Biological sciences
    Agricultural, veterinary and food sciences
    Agriculture, land and farm management not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/61953
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E
    • TEQSA: PRV12076

    Tagline

    • Gold Coast
    • Logan
    • Brisbane - Queensland, Australia
    First Peoples of Australia
    • Aboriginal
    • Torres Strait Islander