| Item type |
国際農研デフォルトアイテムタイプ（フル）(1) |
| 公開日 |
2025-07-03 |
| タイトル |
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|
タイトル |
Impact of effective soil depth on agronomic recommendations for sorghum and its economic viability in Africa |
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言語 |
en |
| 作成者 |
Ikazaki, Kenta
Nagumo, Fujio
Simporé, Saïdou
Iseki, Kohtaro
Barro, Albert
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
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権利情報 |
© 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. |
| 権利情報 |
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権利情報Resource |
http://creativecommons.org/licenses/by/4.0/ |
|
権利情報 |
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. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent. |
| 主題 |
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|
主題 |
Agronomic recommendation, effective soil depth, sorghum, sub-Saharan Africa, water shortage |
| 内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
Improving sorghum productivity, the second most important upland crop in Africa, is critical to meeting the continent’s rapidly growing food demand. Previous research indicated that limited soil water, especially in soils with an effective soil depth (ESD) of ≤ 50cm, restricts sorghum production under fertilized conditions. This finding suggests that optimal management practices, including fertilizer application rates, planting density, and variety selection, should vary by ESD. However, agronomic recommendations for sorghum in Africa have yet to incorporate ESD considerations. This study assessed the impact of ESD on optimal sorghum management practices and their economic stability amid fluctuating fertilizer prices. Two-year field experiments were conducted on soils with ESDs of 25, 50, and 100cm in the Sudan Savanna, Africa’s largest sorghum-producing region. These ESDs represent three dominant soil types in the region: two types of Plinthosols and Ferric Lixisol. Results showed that the optimal management practices varied by ESD: 37kg N ha－1, 3.1 hills m－2, and Kapelga for 25cm ESD; 74kg N ha－1, 8.3 hills m－2, and Kapelga for 50cm ESD; and 74kg N ha－1, 5.6 hills m－2, and Sariaso14 for 100cm ESD. These practices were economically robust for ESDs of 50 and 100cm but not for 25cm. A random forest regression model identified ESD as the most critical factor for sorghum yield, surpassing rainfall, nitrogen application rate, planting density, and variety. This study highlights the need for ESD-based agronomic recommendations to enhance food security and income stability for African farmers. |
|
言語 |
en |
| 内容記述 |
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内容記述タイプ |
Other |
|
内容記述 |
Soil Science and Plant Nutrition (SSPN) is a peer-reviewed international journal and an official journal of the Japanese Society of Soil Science and Plant Nutrition (JSSSPN) -- description based on journal HP |
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言語 |
en |
| 出版者 |
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出版者 |
Taylor & Francis |
| 日付 |
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日付 |
2025-06-09 |
|
日付タイプ |
Accepted |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
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|
関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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|
関連識別子 |
https://doi.org/10.1080/00380768.2025.2522832 |
| 収録物識別子 |
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収録物識別子タイプ |
EISSN |
|
収録物識別子 |
1747-0765 |
| 収録物識別子 |
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|
収録物識別子タイプ |
PISSN |
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収録物識別子 |
0038-0768 |
| 収録物識別子 |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA11558204 |
| 書誌情報 |
en : Soil Science and Plant Nutrition
p. 1-12,
発行日 2025-06-26
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| 位置情報 |
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位置情報（自由記述） |
Burkina Faso |
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位置情報（自由記述） |
ブルキナファソ |
| 助成情報 |
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識別子タイプ |
Crossref Funder |
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助成機関識別子 |
https://doi.org/10.13039/501100009472 |
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助成機関名 |
Japan International Research Center for Agricultural Sciences (JIRCAS)(en) |
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研究課題番号URI |
https://www.jircas.go.jp/en/program/program_a/a2 |
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研究課題番号 |
04a1A2 |
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研究課題名 |
Development of intensive watershed management models for soil erosion-prone areas in Sub-Saharan Africa(en) |
| 助成情報 |
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識別子タイプ |
Crossref Funder |
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助成機関識別子 |
https://doi.org/10.13039/501100009472 |
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助成機関名 |
Japan International Research Center for Agricultural Sciences (JIRCAS)(en) |
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研究課題番号URI |
https://www.jircas.go.jp/en/program/proa/a6 |
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研究課題番号 |
05a1A6 |
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研究課題名 |
Development of sustainable land management under extreme weather conditions in drylands(en) |
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