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Coal Clinker Ash Influence in Mineral Nitrogen Sorption and Leaching in Sandy Soil

Author

Listed:
  • Agnes Aron Dube

    (The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan)

  • Meseret Gutema Abebe

    (The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan)

  • Elizabeth Manneh

    (The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan)

  • Mitsuru Tsubo

    (Arid Land Research Center, Tottori University, 1390 Hamasaka, Tottori 680-0001, Japan)

  • Kuniaki Sato

    (Faculty of Life and Environmental Sciences, Shimane University, 1060 Nishikawatsu, Matsue 690-8504, Japan)

  • Eiji Nishihara

    (Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan)

Abstract

Global energy demands continue to make coal-fired power plants important; however, this has resulted in massive production of clinker ash (CA). The utilisation of CA to improve nutrient retention in agrarian soils is unclear. Nitrogen (N) leaching is one of the greatest limitations in crop production. This study assessed CA’s potential to improve N retention in sandy soil. CA was characterised, and an N sorption study and two-cycle column leaching experiments were conducted. Two CAs were used, with particle sizes of <3 mm (CA1) and <5 mm (CA2). The treatments included control (sandy soil only), CA1 10 , CA1 20 , CA2 10 , and CA2 20 , at 10 and 20% ( w / w ), respectively, and rice husk biochar (positive control) at 5% ( w / w ), replicated three times. The results showed that both CAs adsorbed NH 4 + -N and NO 3 − -N, with NH 4 + -N adsorption higher than NO 3 − -N. NO 3 − -N leaching was significantly inhibited by applying CA 10 of both CAs from day 1 to day 20. NH 4 + -N retention by CA2 did not enhance the growth of maize seedlings; the same was observed in CA1 20 , which had retained the highest N for the two cycles. CA successfully reduced N leaching and increased N retention in sandy soil.

Suggested Citation

  • Agnes Aron Dube & Meseret Gutema Abebe & Elizabeth Manneh & Mitsuru Tsubo & Kuniaki Sato & Eiji Nishihara, 2025. "Coal Clinker Ash Influence in Mineral Nitrogen Sorption and Leaching in Sandy Soil," Sustainability, MDPI, vol. 17(4), pages 1-15, February.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:4:p:1733-:d:1594581
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    References listed on IDEAS

    as
    1. Do-Yeong Hur & Sung-Un Kim & Hyeon-Cheol Park & Keun-Ki Kim & Hong-Ju Son & Kwang-Min Lee & Yu-Jin Kim & Chang-Oh Hong, 2021. "Nitrous Oxide Emission and Crop Yield in Arable Soil Amended with Bottom Ash," Agriculture, MDPI, vol. 11(10), pages 1-15, October.
    2. Ivy Quirinus Chong & Elisa Azura Azman & Ji Feng Ng & Roslan Ismail & Azwan Awang & Nur Aainaa Hasbullah & Rosmah Murdad & Osumanu Haruna Ahmed & Adiza Alhassan Musah & Md. Amirul Alam & Normah Awang , 2022. "Improving Selected Chemical Properties of a Paddy Soil in Sabah Amended with Calcium Silicate: A Laboratory Incubation Study," Sustainability, MDPI, vol. 14(20), pages 1-13, October.
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