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The Effect of Leonardite-Derived Amendments on Soil Microbiome Structure and Potato Yield

Author

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  • Nuraly Akimbekov

    (Department of Biotechnology, Al-Farabi Kazakh National University, al-Farabi ave. 71, 050040 Almaty, Kazakhstan)

  • Xiaohui Qiao

    (Department of Biotechnology, Al-Farabi Kazakh National University, al-Farabi ave. 71, 050040 Almaty, Kazakhstan)

  • Ilya Digel

    (Laboratory of Cell- and Microbiology, Aachen University of Applied Sciences, Heinrich-Mussmann-Straße 1, D 52428 Jülich, Germany)

  • Gulzhamal Abdieva

    (Department of Biotechnology, Al-Farabi Kazakh National University, al-Farabi ave. 71, 050040 Almaty, Kazakhstan)

  • Perizat Ualieva

    (Department of Biotechnology, Al-Farabi Kazakh National University, al-Farabi ave. 71, 050040 Almaty, Kazakhstan)

  • Azhar Zhubanova

    (Department of Biotechnology, Al-Farabi Kazakh National University, al-Farabi ave. 71, 050040 Almaty, Kazakhstan)

Abstract

Humic substances originating from various organic matters can ameliorate soil properties, stimulate plant growth, and improve nutrient uptake. Due to the low calorific heating value, leonardite is rather unsuitable as fuel. However, it may serve as a potential source of humic substances. This study was aimed at characterizing the leonardite-based soil amendments and examining the effect of their application on the soil microbial community, as well as on potato growth and tuber yield. A high yield (71.1%) of humic acid (LHA) from leonardite has been demonstrated. Parental leonardite (PL) and LHA were applied to soil prior to potato cultivation. The 16S rRNA sequencing of soil samples revealed distinct relationships between microbial community composition and the application of leonardite-based soil amendments. Potato tubers were planted in pots in greenhouse conditions. The tubers were harvested at the mature stage for the determination of growth and yield parameters. The results demonstrated that the LHA treatments had a significant effect on increasing potato growth (54.9%) and tuber yield (66.4%) when compared to the control. The findings highlight the importance of amending leonardite-based humic products for maintaining the biogeochemical stability of soils, for keeping their healthy microbial community structure, and for increasing the agronomic productivity of potato plants.

Suggested Citation

  • Nuraly Akimbekov & Xiaohui Qiao & Ilya Digel & Gulzhamal Abdieva & Perizat Ualieva & Azhar Zhubanova, 2020. "The Effect of Leonardite-Derived Amendments on Soil Microbiome Structure and Potato Yield," Agriculture, MDPI, vol. 10(5), pages 1-17, May.
    • Handle: RePEc:gam:jagris:v:10:y:2020:i:5:p:147-:d:353142
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    References listed on IDEAS

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    1. Zehra Ekin, 2019. "Integrated Use of Humic Acid and Plant Growth Promoting Rhizobacteria to Ensure Higher Potato Productivity in Sustainable Agriculture," Sustainability, MDPI, vol. 11(12), pages 1-13, June.
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    Cited by:

    1. Nuraly S. Akimbekov & Ilya Digel & Kuanysh T. Tastambek & Dinara K. Sherelkhan & Dariya B. Jussupova & Nazym P. Altynbay, 2021. "Low-Rank Coal as a Source of Humic Substances for Soil Amendment and Fertility Management," Agriculture, MDPI, vol. 11(12), pages 1-25, December.
    2. Chen, Zhijun & Li, Yue & Zhang, Xuechen & Xiong, Yunwu & Huang, Quanzhong & Jin, Song & Sun, Shijun & Chi, Daocai & Huang, Guanhua, 2022. "Effects of lignite bioorganic product on sunflower growth, water and nitrogen productivity in saline-sodic farmlands at Northwest China," Agricultural Water Management, Elsevier, vol. 271(C).
    3. Rasa Paleckiene & Raminta Navikaite & Rasa Slinksiene, 2021. "Peat as a Raw Material for Plant Nutrients and Humic Substances," Sustainability, MDPI, vol. 13(11), pages 1-13, June.

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