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Effects of saturated irrigation on soil environment and rice quality

Research Project

Project/Area Number 25660192
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Rural environmental engineering/Planning
Research InstitutionIshikawa Prefectural University

Principal Investigator

FUJIHARA Yoichi  石川県立大学, 生物資源環境学部, 准教授 (10414038)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords水田灌漑 / 高温登熟障害 / 飽水管理 / 地温 / 水温 / 酸化還元電位 / 玄米品質 / 温暖化適応策 / 保水管理
Outline of Final Research Achievements

Saturated irrigation is recommended as a means of preventing high temperature ripening disorder in rice. However, the effects of saturated irrigation are not fully understood. We investigated the differences between the soil temperature and rice quality irrigated by flooding and by saturated irrigation. The maximum soil temperature of paddies under saturated irrigation is 0.5 ℃ higher than that of paddies under flooding irrigation, while the minimum soil temperature under saturated irrigation is 0.5 ℃ lower than that under flooding irrigation. Although the effects of saturated irrigation on rice quality are less significant to those of late planting, rice quality was higher in saturated irrigation paddies than in flooding irrigated paddies. Moreover, this irrigation method can be implemented regardless of the local water supplies, because it requires lesser water. Thus, saturated irrigation is an effective water management that can be implemented in response to climate changes.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (12 results)

All 2015 2014 2013 Other

All Journal Article (6 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (6 results)

  • [Journal Article] 衛星データを利用した2期作、3期作地域ごとの水稲収量推定方法の検討:ベトナム・メコンデルタを対象として2015

    • Author(s)
      荒川舞・藤原洋一・高瀬恵次・長野峻介・一恩英二
    • Journal Title

      日本農業気象学会北陸支部会誌

      Volume: 40 Pages: 8-11

    • Related Report
      2014 Annual Research Report
  • [Journal Article] 気候変動や人間活動が水文・水環境に及ぼす影響-手取川流域およびメコンデルタを対象として-2014

    • Author(s)
      藤原洋一・佐藤嘉展・星川圭介・藤井秀人
    • Journal Title

      作物研究

      Volume: 59 Pages: 49-53

    • NAID

      110009843962

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 小型温度データロガーを利用した水文観測の試み-湛水位および積雪深の観測-2014

    • Author(s)
      藤原洋一・菊池拓也・小倉晃・高瀬恵次
    • Journal Title

      応用水文

      Volume: 26 Pages: 138-146

    • Related Report
      2014 Annual Research Report
  • [Journal Article] 夏期の飽水管理が土壌環境と玄米品質に及ぼす影響2013

    • Author(s)
      藤原洋一・鳥山和伸・藤井秀人
    • Journal Title

      農業農村工学会誌

      Volume: 81(4) Pages: 273-276

    • NAID

      130007784062

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] メコンデルタ洪水常襲稲作地域におけるフルダイク化の進展とその影響2013

    • Author(s)
      藤井秀人・藤原洋一・星川圭介
    • Journal Title

      農業農村工学会論文集

      Volume: 285 Pages: 67-74

    • NAID

      130004951463

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of puddling on percolation and rice yields in rainfed lowland paddy cultivation: Case study in Khammouane province, central Laos2013

    • Author(s)
      Yoichi Fujihara, Ryuichi Yamada, Masato Oda, Hideto Fujii, Osamu Ito, Junichi Kashiwagi
    • Journal Title

      Agricultural Sciences

      Volume: 4(8) Pages: 360-368

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] 衛星データを利用した水稲収量の時空間変動解析-メコンデルタを対象として-2015

    • Author(s)
      荒川舞・藤原洋一
    • Organizer
      2015IPUセミナー
    • Place of Presentation
      野々市市
    • Year and Date
      2015-03-06
    • Related Report
      2014 Annual Research Report
  • [Presentation] 衛星データを利用した2期作、3期作地域ごとの水稲収量推定方法の検討:ベトナム・メコンデルタを対象として2014

    • Author(s)
      荒川舞・藤原洋一・高瀬恵次・長野峻介・一恩英二
    • Organizer
      2014年度日本農業気象学会北陸支部大会
    • Place of Presentation
      金沢
    • Year and Date
      2014-11-29
    • Related Report
      2014 Annual Research Report
  • [Presentation] 夏期の飽水管理が土壌環境と玄米品質に及ぼす影響

    • Author(s)
      藤原洋一・鳥山和伸・藤井秀人
    • Organizer
      平成25年度農業農村工学会大会講演会
    • Place of Presentation
      東京
    • Related Report
      2013 Research-status Report
  • [Presentation] メコンデルタにおける3期作化が農地および周辺水文環境へ及ぼす影響

    • Author(s)
      藤原洋一・藤井秀人・星川圭介・柏木淳一
    • Organizer
      水文・水資源学会2013年度研究発表会
    • Place of Presentation
      神戸
    • Related Report
      2013 Research-status Report
  • [Presentation] 温暖化や人間活動に伴う河川水文・水質の変化:手取川流域を中心として

    • Author(s)
      藤原洋一
    • Organizer
      応用生態工学会金沢研究発表会
    • Place of Presentation
      金沢
    • Related Report
      2013 Research-status Report
  • [Presentation] 気候変動や人間活動が水文・水環境に及ぼす影響:手取川流域およびメコンデルタを対象として

    • Author(s)
      藤原洋一
    • Organizer
      近畿作物・育種研究会公開シンポジウム
    • Place of Presentation
      大阪
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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