IDEAS home Printed from https://ideas.repec.org/a/gam/jagris/v12y2022i11p1797-d956934.html
   My bibliography  Save this article

Properties of Humic Substances in Composts Comprised of Different Organic Source Material

Author

Listed:
  • Marge Lanno

    (Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia)

  • Maris Klavins

    (Department of Environmental Sciences, University of Latvia, 1586 Riga, Latvia)

  • Oskars Purmalis

    (Department of Environmental Sciences, University of Latvia, 1586 Riga, Latvia)

  • Merrit Shanskiy

    (Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia)

  • Anu Kisand

    (Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia)

  • Mait Kriipsalu

    (Institute of Forestry and Rural Engineering, Estonian University of Life Sciences, 51006 Tartu, Estonia)

Abstract

Reusing organic waste as fertilizer is one method to reduce the use of mineral fertilizers and minimize waste disposal in landfills. Regulations have been enacted for the processing of organic waste and for recycling end products, but the humic content of organic fertilizers has been neglected. We studied seven composts with different organic input materials and technologies. Humic substances (HSs) were detected in all composts. The total organic carbon in the HSs constituted 8.7 ± 0.1% (SD)–27.0 ± 0.2% of the compost dry matter. Spectral differences between the studied samples in FTIR spectroscopy could be observed at 1700–1000 cm −1 , indicating differences in compost precursor material. The EEM peak, associated with humic acids (HAs), was high in composts containing animal by-products (e.g., fish waste, horse manure, and kitchen biowaste). Kitchen biowaste, also when processed by Hermetia illucens larvae and vermicompost, exhibited slower organic material transformation with low humic acid/fulvic acid ratios (<1.60). The results show the importance of source material origin and amendments, which influence the composting process and final products. Our study emphasizes the role of humic substances in the comprehensive evaluation of composts. To maximize the added value of composts, marketing strategies should consider determining the share of humic substances besides the content of organic matter and nutrients.

Suggested Citation

  • Marge Lanno & Maris Klavins & Oskars Purmalis & Merrit Shanskiy & Anu Kisand & Mait Kriipsalu, 2022. "Properties of Humic Substances in Composts Comprised of Different Organic Source Material," Agriculture, MDPI, vol. 12(11), pages 1-14, October.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:11:p:1797-:d:956934
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2077-0472/12/11/1797/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2077-0472/12/11/1797/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Marge Lanno & Mait Kriipsalu & Merrit Shanskiy & Maidu Silm & Anu Kisand, 2021. "Distribution of Phosphorus Forms Depends on Compost Source Material," Resources, MDPI, vol. 10(10), pages 1-11, October.
    2. Marzena Smol, 2021. "Transition to Circular Economy in the Fertilizer Sector—Analysis of Recommended Directions and End-Users’ Perception of Waste-Based Products in Poland," Energies, MDPI, vol. 14(14), pages 1-19, July.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Maria Roulia, 2024. "Sustainable Utilization of Humic Substances and Organic Waste in Green Agriculture," Agriculture, MDPI, vol. 14(1), pages 1-4, January.
    2. Alina Maciejewska & Janusz Sobieraj & Dominik Metelski, 2024. "Assessing the Impact of Lignite-Based Rekulter Fertilizer on Soil Sustainability: A Comprehensive Field Study," Sustainability, MDPI, vol. 16(8), pages 1-27, April.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Marzena Smol, 2023. "Circular Economy in Wastewater Treatment Plant—Water, Energy and Raw Materials Recovery," Energies, MDPI, vol. 16(9), pages 1-18, May.
    2. Marzena Smol & Paulina Marcinek & Zuzana Šimková & Tomáš Bakalár & Milan Hemzal & Jiří Jaromír Klemeš & Yee Van Fan & Kinga Lorencz & Eugeniusz Koda & Anna Podlasek, 2022. "Inventory of Good Practices of Sustainable and Circular Phosphorus Management in the Visegrad Group (V4)," Resources, MDPI, vol. 12(1), pages 1-17, December.
    3. Sabina Scarpellini, 2022. "Social impacts of a circular business model: An approach from a sustainability accounting and reporting perspective," Corporate Social Responsibility and Environmental Management, John Wiley & Sons, vol. 29(3), pages 646-656, May.
    4. Lipeng Li & Apurbo Sarkar & Xi Zhou & Xiuling Ding & Hua Li, 2022. "Influence and Action Mechanisms of Governmental Relations Embeddedness for Fostering Green Production Demonstration Household: Evidence from Shaanxi, Sichuan, and Anhui Province, China," IJERPH, MDPI, vol. 19(19), pages 1-25, September.
    5. Aneta Zakrzewska & Anna Nowak, 2022. "Diversification of Agricultural Output Intensity across the European Union in Light of the Assumptions of Sustainable Development," Agriculture, MDPI, vol. 12(9), pages 1-17, September.
    6. Konstadinos Abeliotis & Katia Lasaridi, 2022. "Food Waste Prevention: Reduction, Reuse, and Recycling," Resources, MDPI, vol. 12(1), pages 1-3, December.
    7. Rebeka Pajura & Adam Masłoń & Joanna Czarnota, 2023. "The Use of Waste to Produce Liquid Fertilizers in Terms of Sustainable Development and Energy Consumption in the Fertilizer Industry—A Case Study from Poland," Energies, MDPI, vol. 16(4), pages 1-24, February.

    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:gam:jagris:v:12:y:2022:i:11:p:1797-:d:956934. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    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.