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Innovation of intercropping for Sustainable Intensification in dry tropical cropland of Sub-Sahara Africa

Research Project

Project/Area Number 18KK0185
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 41:Agricultural economics and rural sociology, agricultural engineering, and related fields
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Sugihara Soh  東京農工大学, (連合)農学研究科(研究院), 准教授 (30594238)

Co-Investigator(Kenkyū-buntansha) 岡崎 伸  東京農工大学, (連合)農学研究科(研究院), 教授 (40379285)
柴田 誠  京都大学, 地球環境学堂, 助教 (40799607)
伊ヶ崎 健大  国立研究開発法人国際農林水産業研究センター, 生産環境・畜産領域, 主任研究員 (70582021)
Project Period (FY) 2018-10-09 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2021: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2019: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywords混作 / リン循環 / 持続可能性 / 根粒菌 / アフリカ
Outline of Final Research Achievements

In this study, to improve soil phosphorus (P) deficiency and increase crop production sustainably, we conducted joint research with Sokoine University of Agriculture, Tanzania. The objective is to evaluate the effect of intercropping and rhizobium inoculation on soil-plant P dynamics in dry tropical soils.
As main results, 1) Sharing the rhizosphere between the legumu and maize improves the soil-plant P dynamics and improves the utilization efficiency of fertilized P, 2) Rhizobium inoculation improves the P acquisition capacity of pigeon pea root only under P fertilization, and 3) Rhizobium inoculation on intercropping was not significant in terms of P dynamics. From the above results, rhizosphere-sharing intercropping systems is effective for improving the soil-plant P dynacmis in the tropical soil conditions. Further study for understanding the microbial community in intercropping rhizosphere must be important.

Academic Significance and Societal Importance of the Research Achievements

本研究では、非根圏型共有混作と比べて根圏共有型混作では、施肥リンの根圏への集積とそれに伴う作物リン吸収量の増加が明確に観測された。このことは半乾燥熱帯アフリカにおいて、貴重なリン資源の効率的利用に根圏共有型混作が有効であることを示しており、今後の技術開発に貢献するという意味で社会的意義は大きい。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (20 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (8 results) Journal Article (7 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 7 results,  Open Access: 4 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Int'l Joint Research] Sokoine University of Agriculture/NM-AIST(タンザニア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] INRA, UMR&SOL, Montpellier(フランス)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Sokoine University of Agriculture(タンザニア)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] INRA, UMR&SOL, Montpellier(フランス)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Sokoine University of Agriculture(タンザニア)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] INRA, UMR&SOL, Montpellier(フランス)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Sokoine University of Agriculture(タンザニア)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Sokoine University of Agriculture(タンザニア)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Rhizobium Inoculation Improved the Rhizosphere P Dynamics and P Uptake Capacity of Pigeon Pea Plants Grown in Strongly Weathered Soil Only under P Fertilized Conditions2022

    • Author(s)
      Yamamoto Saki、Okazaki Shin、Monica Nakei D.、Ohkama-Ohtsu Naoko、Tanaka Haruo、Sugihara Soh
    • Journal Title

      Agronomy

      Volume: 12 Issue: 12 Pages: 3149-3149

    • DOI

      10.3390/agronomy12123149

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Root distribution and properties of a young alley-cropping system: effects on soil carbon storage and microbial activity2022

    • Author(s)
      Siegwart Lorene、Jourdan Christophe、Piton Gabin、Sugihara Soh、Van den Meersche Karel、Bertrand Isabelle
    • Journal Title

      Plant and Soil

      Volume: 482 Issue: 1-2 Pages: 601-625

    • DOI

      10.1007/s11104-022-05714-9

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Induction of citrate transporter gene expression in soybean roots by sulfur application2022

    • Author(s)
      Sugiura Hinako、Miyaji Shunsuke、Yamamoto Saki、Yasuda Michiko、Damo Jean Louise Cocson、Ramirez Maria Daniela Artigas、Agake Shin-Ichiro、Kamiya Takehiro、Fujiwara Toru、Bellingrath-Kimura Sonoko Dorothea、Tanaka Haruo、Sugihara Soh、Ohkama-Ohtsu Naoko
    • Journal Title

      Soil Science and Plant Nutrition

      Volume: 68 Issue: 5-6 Pages: 547-552

    • DOI

      10.1080/00380768.2022.2104594

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Dynamics of fractionated rhizosphere soil P and plant P uptake under maize/P-mobilizing legumes intercropping in strongly weathered soil of Tanzania2021

    • Author(s)
      Sugihara Soh、Kawashita Tomomi、Shitindi Mawazo、Massawe Boniface、Tanaka Haruo
    • Journal Title

      Soil Science and Plant Nutrition

      Volume: - Issue: 3 Pages: 1-11

    • DOI

      10.1080/00380768.2021.1911589

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Rhizobia use a pathogenic-like effector to hijack leguminous nodulation signalling2021

    • Author(s)
      Ratu Safirah Tasa Nerves、Teulet Albin、Miwa Hiroki、Masuda Sachiko、Nguyen Hien P.、Yasuda Michiko、Sato Shusei、Kaneko Takakazu、Hayashi Makoto、Giraud Eric、Okazaki Shin
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 2034-2034

    • DOI

      10.1038/s41598-021-81598-6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Arbuscular Mycorrhizal Fungi Associated with Rice (Oryza sativa L.) in Ghana: Effect of Regional Locations and Soil Factors on Diversity and Community Assembly2020

    • Author(s)
      Sarkodee-Addo Elsie、Yasuda Michiko、Gyu Lee Chol、Kanasugi Makoto、Fujii Yoshiharu、Ansong Omari Richard、Oppong Abebrese Samuel、Bam Ralph、Asuming-Brempong Stella、Mohammad Golam Dastogeer Khondoker、Okazaki Shin
    • Journal Title

      Agronomy

      Volume: 10 Issue: 4 Pages: 559-559

    • DOI

      10.3390/agronomy10040559

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of White Lupin and Groundnut on Fractionated Rhizosphere Soil P of Different P-Limited Soil Types in Japan2019

    • Author(s)
      Imai Kaoru、Sugihara Soh、Wasaki Jun、Tanaka Haruo
    • Journal Title

      Agronomy

      Volume: 9 Issue: 2 Pages: 68-68

    • DOI

      10.3390/agronomy9020068

    • Related Report
      2019 Research-status Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Rhizobium inoculation improved the rhizosphere soil P dynamics and plant P uptake in strongly weathered soil under P fertilized condition2022

    • Author(s)
      Yamamoto S, Okazaki S, Nakei DM, Tanaka H, Sugihara S.
    • Organizer
      World Congress of Soil Science 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 根粒菌接種とリン施肥がキマメの根圏土壌におけるリン動態に与える影響の解明2021

    • Author(s)
      山本沙季、岡崎伸、Nakei D. Monica、田中治夫、杉原創
    • Organizer
      日本土壌肥料学会・北海道大会
    • Related Report
      2021 Research-status Report
  • [Presentation] アーバスキュラー菌根菌が土壌から獲得するリン形態の解明~土壌型・温度・リン施肥量に着目して~2020

    • Author(s)
      杉原創・宮島奈々子・田中治夫・江沢辰広
    • Organizer
      菌根研究会
    • Related Report
      2020 Research-status Report
  • [Presentation] マメ科作物の特異的なリン可給可能に土壌の化学性が与える影響の解明・第3報2019

    • Author(s)
      杉原創、今井馨、大津直子、柴田誠、田中治夫
    • Organizer
      日本土壌肥料学会
    • Related Report
      2019 Research-status Report
  • [Presentation] タンザニア畑作地における混作時の根圏共有が作物のリン吸収能に与える影響の解明2019

    • Author(s)
      河下知美、杉原創、Shitindi M、Massawe B、田中治夫
    • Organizer
      日本土壌肥料学会
    • Related Report
      2019 Research-status Report

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Published: 2018-10-12   Modified: 2024-01-30  

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