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Rice yield and soil carbon dynamics over three years of applying rice husk charcoal to an Andosol paddy field
http://hdl.handle.net/2241/00146347
http://hdl.handle.net/2241/0014634747372438-8a07-4ff0-823a-419d6a514586
名前 / ファイル | ライセンス | アクション |
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PPS_20-2 (851.1 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2017-06-02 | |||||
タイトル | ||||||
タイトル | Rice yield and soil carbon dynamics over three years of applying rice husk charcoal to an Andosol paddy field | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Koyama, Shinichi
× Koyama, Shinichi× Hayashi, Hisayoshi |
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著者別名 |
林, 久喜
× 林, 久喜 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Rice husk charcoal (RC) produced from the pyrolysis of rice husk (RH) can be one of the cost-effective biochars for use in rice-based farming systems. This study investigated changes in rice yield and soil carbon sequestration over three years of RC application to an Andosol paddy field. The treatments were RC application at 0.02, 0.2, and 2 kg m−2 (RC0.02, RC0.2, and RC2, respectively), RH application at 0.2 kg m−2 (RH0.2), and a control with no RC or RH application (CONT). The results showed that RC2 increased culm length by 4% and straw weight by 14% on average over the three years. These increases in plant growth coincided with a higher level of silicon uptake by the rice plants, although they did not significantly affect grain yield. The soil carbon content was progressively increased by RC2 over the three years, whereas it was not significantly affected by RC0.02 or RC0.2. A considerable amount (>72%) of the applied carbon with RC2 remained in the soil by taking account of its downward movement below the 10 cm layer of the paddy field after three consecutive years of RC application. We conclude that rice husk charcoal application to Andosol paddy fields is an effective option for increasing carbon sequestration. Furthermore, the increase in silicon uptake by rice plants suggests that rice husk charcoal can also be functioning as a silicon fertilizer. | |||||
書誌情報 |
Plant production science 巻 20, 号 2, p. 176-182, 発行日 2017 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1343-943X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11162156 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1080/1343943X.2017.1290506 | |||||
権利 | ||||||
権利情報 | © 2017 The Author(s). | |||||
権利 | ||||||
権利情報 | Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | |||||
著者版フラグ | ||||||
値 | publisher | |||||
出版者 | ||||||
出版者 | Taylor & francis ltd |