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Development of mixed-cropping techniques to overcome fluctuation of water environment in semi-arid regions

Research Project

Project/Area Number 19KK0158
Research Category

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

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 39:Agricultural and environmental biology and related fields
Research InstitutionKindai University

Principal Investigator

Iijima Morio  近畿大学, 農学部, 教授 (60252277)

Co-Investigator(Kenkyū-buntansha) 庄司 浩一  神戸大学, 農学研究科, 准教授 (10263394)
山根 浩二  近畿大学, 農学部, 准教授 (50580859)
廣岡 義博  近畿大学, 農学部, 講師 (80780981)
Project Period (FY) 2019-10-07 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2022: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2021: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2020: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Keywordsclose-mixed planting / 接触混植 / crack treatment / 亀裂処理 / crack fertilization / 亀裂施肥 / ultra-fine bubble / 超微細気泡 / イネ / メタン抑制 / ウルトラファインバブル / 混作 / 季節湿地 / メタン放出 / 洪水 / 干ばつ / 根粒着生制御 / ソルガム / パ-ルミレット / カウピー / 湛水ストレス / 乾燥ストレス
Outline of Research at the Start

本研究は、申請代表らが提案した接触混植と亀裂施肥を基礎概念として、半乾燥地における洪水と干ばつの連続発生を克服しうる新規な農法を創出することを目指す。接触混植は、洪水環境では畑作物の耐湿性を、干ばつ環境では水田作物の耐乾性を強化する。また、亀裂施肥により、湿害ストレスが緩和されるという現象を利用し、マメ科作物を導入した接触混植に亀裂施肥を行えば、肥沃度を維持しつつ、極端な水環境の連続発生に対応できよう。そこで、ナミビアに造成した水環境制御圃場や農家圃場でイネとカウピ-等を供試し、新規な農法を提案する。本研究実施により、気候変動に対応しうる穀物生産の国際協同研究拠点の形成にも貢献する。

Outline of Final Research Achievements

This study aimed to develop mixed-cropping techniques that can reduce the stress of floods and droughts caused by climate change in southern Africa. The introduction of rice-based mixed-cropping techniques was done to neighboring country of Botswana by sending many promising rice cultivars from Namibia. In Namibia, the technique of close mixed-planting of pearl millet, cowpea, and/or sorghum, was extended to various provinces. In Botswana, pot experiments were conducted to test the close mixed-planting of rice and cowpea. Experiments on ultra-fine bubble irrigation to rice was conducted in Japan to find out the basic findings contributing to develop paddy fields in permanent wetlands, a common seasonal wetland environment in both countries.

Academic Significance and Societal Importance of the Research Achievements

南部アフリカの半乾燥地では、気候変動の進行により、水環境の極端化が起こりつつある。本研究では、パールミレット、カウピ-、ソルガムの接触混植技術を農家圃場レベルで拡大し、ナミビア北中部の諸州に実証試験を拡大した。これまでソルガムの栽培が難しかった乾燥傾向の畑地においても接触混植技術を用いればソルガムの栽培が可能となる。そのため、現地農家との協力体制を維持することができれば、研究成果のさらなる社会実装が期待できよう。さらに、ナミビア―ボツワナ―日本の3国間での研究連携の基礎を築いた。今後、若手研究者によって本研究ネットワークを活用した新たな研究展開の契機となることも期待できよう。

Report

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

    (29 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (8 results) Journal Article (12 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 9 results,  Open Access: 11 results) Presentation (9 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results)

  • [Int'l Joint Research] ナミビア大学(ナミビア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ボツワナ大学(ボツワナ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ボツワナ大学(ボツワナ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ナミビア大学(ナミビア)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ナミビア大学(ナミビア)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ボツワナ大学(ボツワナ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ナミビア大学(ナミビア)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] ボツワナ大学(ボツワナ)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Performance of Rice Genotypes under Temporally Variable Wetland Salinity Conditions of a Semiarid Sub-Saharan Climatic Ecosystem2023

    • Author(s)
      Awala SK, Hove K, Simasiku EK, Izumi Y, Mwandemele OD, Iijima M
    • Journal Title

      Land

      Volume: 12 Pages: 888-888

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fine soil particle aggregation in ultra-fine bubble irrigated paddy fields2022

    • Author(s)
      Ueda Yoshikatsu、Izumi Yasuhiro、Hirooka Yoshihiro、Watanabe Yoshinori、Iijima Morio
    • Journal Title

      Water Supply

      Volume: 22 Issue: 11 Pages: 7972-7981

    • DOI

      10.2166/ws.2022.368

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of a tractor mounted vertically oscillating subsoiler2022

    • Author(s)
      Oyebode O, Rakoto A, Iijima M, Shoji K
    • Journal Title

      Proceedings of the 10th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering

      Volume: ISMAB2022 Pages: 391-393

    • Related Report
      2022 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Development of an L-shaped forces sensor for subsoiling operation2022

    • Author(s)
      Rakoto A, Oyebode O, Shoji K
    • Journal Title

      Proceedings of the 10th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering

      Volume: ISMAB2022 Pages: 553-558

    • Related Report
      2022 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Phase-by-phase analysis of draft and vertical forces during vertical oscillatory tillage2022

    • Author(s)
      Oyebode O, Rakoto A, Shoji K
    • Journal Title

      Proceedings of The XX CIGR World Congress 2022

      Volume: TS

    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Ultrafine bubbles alleviated osmotic stress in soybean seedlings2022

    • Author(s)
      Iijima Morio、Yamashita Kaito、Hirooka Yoshihiro、Ueda Yoshikatsu、Yamane Koji、Kamimura Chikashi
    • Journal Title

      Plant Production Science

      Volume: 26 Issue: 2 Pages: 218-223

    • DOI

      10.1080/1343943x.2021.2021094

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Draft Requirements of Vertically Oscillating Tractor-Mounted Subsoiler2022

    • Author(s)
      Oyebode Oyetayo Olukorede, Andoniaina Rakoto Malala, Iijima Morio, Shoji Koichi
    • Journal Title

      農業食料工学会誌 Journal of the Japanese Society of Agricultural Machinery and Food Engineers

      Volume: 84 Pages: 110-112

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of Cultivation Management on Pearl Millet Yield and Growth Differed with Rainfall Conditions in a Seasonal Wetland of Sub-Saharan Africa2021

    • Author(s)
      Hirooka Yoshihiro、Awala Simon K.、Hove Kudakwashe、Nanhapo Pamwenafye I.、Iijima Morio
    • Journal Title

      Agronomy

      Volume: 11 Issue: 9 Pages: 1767-1767

    • DOI

      10.3390/agronomy11091767

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Promotive or suppressive effects of ultrafine bubbles on crop growth depended on bubble concentration and crop species2021

    • Author(s)
      Iijima Morio、Yamashita Kaito、Hirooka Yoshihiro、Ueda Yoshikatsu、Yamane Koji、Kamimura Chikashi
    • Journal Title

      Plant Production Science

      Volume: 25 Issue: 1 Pages: 78-83

    • DOI

      10.1080/1343943x.2021.1960175

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Draft Reduction without Increase in Power Requirement Using a Vertically Oscillating Model Subsoiler2021

    • Author(s)
      Oyebode Oyetayo Olukorede, Andoniaina Rakoto Malala, Shoji Koichi
    • Journal Title

      農業食料工学会誌 Journal of the Japanese Society of Agricultural Machinery and Food Engineers

      Volume: 83 Pages: 361-368

    • NAID

      40022699858

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Growth and Productivity Assessment of Short-Duration Rice (Oryza sativa L. and Upland NERICA) Genotypes in Semiarid North-Central Namibia2021

    • Author(s)
      Simon K. Awala , Kudakwashe Hove, Vistorina Shivute, Johanna S. Valombola, Pamwenafye I. Nanhapo, Yoshihiro Hirooka, Osmund D. Mwandemele and Morio Iijima
    • Journal Title

      Advances in Agriculture

      Volume: 2021 Pages: 1-10

    • DOI

      10.1155/2021/6676081

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Agronomic and Socio-economic Assessment of the Introduction of a Rice-Based Mixed Cropping System to Cuvelai Seasonal Wetland System in Northern Namibia2021

    • Author(s)
      Hirooka Y, Masuda T, Watanabe Y, Izumi Y, Inai H, Awala S.K, Iijima M
    • Journal Title

      Agrekon

      Volume: 60 Issue: 2 Pages: 1-10

    • DOI

      10.1080/03031853.2021.1917429

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] ウルトラファインバブル水の水田への灌漑が水稲生育と水田土壌に及ぼす影響2022

    • Author(s)
      飯嶋 盛雄, 廣岡 義博, 泉 泰弘, 渡邊 芳倫, 上田 義勝, 坂田 衛星
    • Organizer
      日本作物学会第 254回講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 土壌栄養ストレス条件下におけるウルトラファインバブル灌漑が水稲収量に及ぼす影響2022

    • Author(s)
      大南正悟, 立石祐貴, 廣岡義博, 坂田衛星, 飯嶋盛雄
    • Organizer
      日本作物学会第 253 回講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 元村 真歩, 廣岡 義博, 山根 浩二, 坂田 衛星, 飯嶋 盛雄2022

    • Author(s)
      ウルトラファインバブル灌漑によるコーヒーの土壌乾燥ストレス緩和
    • Organizer
      日本作物学会第 253 回講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] The effect of ultra-fine bubble on soybean growth under osmotic stress condition2021

    • Author(s)
      Yamashita K, Hirooka Y, Ueda Y, Yamane K, Kamimura C, Iijima M
    • Organizer
      10th Asian crop science association conference
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Iijima M, Awala SK, Nanhapo PI, Hirooka Y, Kashe K2021

    • Author(s)
      Enhancement of drought-tolerance of sorghum by the close mixed-planting of pearl millet
    • Organizer
      10th Asian crop science association conference
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Kashe K, Awala SK, Nanhapo PI, Hirooka Y, Iijima M2021

    • Author(s)
      Rice Introduction to Botswana through the Collaboration with Namibia and Japan; Natural and Social Environment for Rice Cropping in Okavango Delta.
    • Organizer
      10th Asian crop science association conference
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effects of ridging and fertilizer application on crop yield and growth under unstable water environments2021

    • Author(s)
      Hirooka Y, Awala SK, Nanhapo PI, Shoji K, Watanabe Y, Izumi Y, Iijima M
    • Organizer
      10th Asian crop science association conference
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Close mixed-planting techniques to flood- and drought- prone environments with special reference to semi-arid Namibia and humid Japan2020

    • Author(s)
      Morio Iijima
    • Organizer
      1st National Symposium on the Agro-Technology and Rural Sciences 2020, Institute for Agro-Technology and Rural Sciences, University of Colombo, Sri Lanka, Invited Key Note Speaker, Online, 15Dec2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 接触混植された作物の生育に及ぼすウルトラファインバブルの影響2020

    • Author(s)
      飯嶋 盛雄, 山下 海斗, 山本 一輝, 廣岡 義博, 山根 浩二, 上田 義勝, 上村 親士
    • Organizer
      第250回日本作物学会講演会、2020年9月3日、オンライン口頭発表
    • Related Report
      2020 Research-status Report

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Published: 2019-10-10   Modified: 2024-01-30  

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