IDEAS home Printed from https://ideas.repec.org/a/caa/jnlswr/v16y2021i1id140-2019-swr.html
   My bibliography  Save this article

Organic acids promote phosphorus release from Mollisols with different organic matter contents

Author

Listed:
  • Xiaoyan Yang

    (School of Forestry, Henan Agricultural University, Zhengzhou, P.R. China)

  • Chuandong Zhang

    (The Third Geological Exploration Institute, Henan Bureau of Geo-Exploration Mineral Development, Zhengzhou, P.R. China)

  • Haiping Gu

    (School of Forestry, Henan Agricultural University, Zhengzhou, P.R. China)

  • Xiangwei Chen

    (School of Forestry, Northeast Forestry University, Harbin, P.R. China)

  • Erhui Guo

    (School of Forestry, Henan Agricultural University, Zhengzhou, P.R. China)

Abstract

Organic acids could improve the phosphorus (P) availability through enhancing the release of inorganic phosphorus (Pi) in the soil. However, the effects of organic acids on the Pi release are still poorly understood, especially from soils with different organic matter contents. Here, a biochemically produced humic acid and P fertiliser were added to the soil to modify the content of the soil organic matter (SOM) and soil P, respectively. And then the soil samples were incubated at 25 °C for 30 days. The release of Pi fractions (such as H2O-Pi, NaHCO3-Pi, NaOH-Pi, HCl-Pi, and Residual-P) from the soils with different organic matter contents in the presence of citric, oxalic, and malic acids was evaluated using a sequential chemical fractionation method. The results showed that the release of the NaHCO3-Pi, NaOH-Pi, and HCl-Pi fractions also showed a decreasing trend with an increasing content of soil organic matter, and more NaOH-Pi than the other Pi fractions was generally released in the presence of organic acids. Considering the types of organic acids, oxalic acid and malic acid most effectively and least effectively released Pi, respectively. The path analysis indicated that the NaOH-Pi release had the highest direct and indirect effects on the total inorganic P (TPi) release. NaOH-Pi was, therefore, the most effective source of Pi in the Mollisols.

Suggested Citation

  • Xiaoyan Yang & Chuandong Zhang & Haiping Gu & Xiangwei Chen & Erhui Guo, 2021. "Organic acids promote phosphorus release from Mollisols with different organic matter contents," Soil and Water Research, Czech Academy of Agricultural Sciences, vol. 16(1), pages 59-66.
    • Handle: RePEc:caa:jnlswr:v:16:y:2021:i:1:id:140-2019-swr
    DOI: 10.17221/140/2019-SWR
    as

    Download full text from publisher

    File URL: http://swr.agriculturejournals.cz/doi/10.17221/140/2019-SWR.html
    Download Restriction: free of charge
    File URL: http://swr.agriculturejournals.cz/doi/10.17221/140/2019-SWR.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/140/2019-SWR?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:caa:jnlswr:v:16:y:2021:i:1:id:140-2019-swr. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Ivo Andrle (email available below). General contact details of provider: https://www.cazv.cz/en/home/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.