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Evaluation of the effects of repeated cultivation of whole crop rice on soil quality toward the proposal of field-specific soil management

Research Project

Project/Area Number 15K00634
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Design and evaluation of sustainable and environmental conscious system
Research InstitutionKyoto University

Principal Investigator

Moritsuka Naoki  京都大学, 農学研究科, 助教 (10554975)

Co-Investigator(Kenkyū-buntansha) 松岡 かおり  国立研究開発法人農業・食品産業技術総合研究機構, 果樹茶業研究部門, 契約研究員・外部研究員等 (10720774)
桂 圭佑  東京農工大学, (連合)農学研究科(研究院), 准教授 (20432338)
Project Period (FY) 2015-10-21 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords水田土壌 / 飼料イネ / 地域研究 / 簡易評価法 / 作付体系 / カリウム / 飼料イネ連作 / 帯磁率 / 長期持続性 / 圃場群スケール / 窒素 / オキシドール / 定点調査 / 土壌肥沃度 / 土壌有機物 / 簡便評価法 / 文献調査
Outline of Final Research Achievements

Effects of repeated cultivation of whole crop rice on soil quality and nutrient deficiencies were evaluated at one farmer’s paddy fields (8 fields, 39 sites) in Kumamoto prefecture, Japan. Compared to the soils under edible rice production, the soils under whole crop rice production contained less available potassium and silicon. A nutrient omission trial indicated that rice grown in soil collected from a whole crop rice field was limited mainly by nitrogen and potassium. In order to rapidly estimate total nitrogen content in surface paddy soils, an oxydol method was proposed. In this method, soil was extracted with a commercially available 3% hydrogen peroxide solution, and the electrical conductivity of the extract was measured. Measurement of magnetic susceptibility was also applied to the surface soil samples in order to establish a laboratory or field method for rapidly estimating soil properties including those related to soil productivity.

Academic Significance and Societal Importance of the Research Achievements

飼料イネ連作水田で粗放的な管理を続けた時に、土壌中のカリウムの含量が低下し、水稲生育制限要因となりうることを実証した。従来の知見では窒素のみが注目されてきたが、土壌のカリウム肥沃度の維持も重要であることが明らかになった。また、土壌の全窒素含量推定法として市販の過酸化水素水を抽出剤として用いる手法(オキシドール法)を考案した。オキシドール法は実験室や試薬を必要としないため、既存の手法とは異なり生産者自らが比較的容易に実施できる。一方、帯磁率の測定については、携帯型帯磁率計を用いた土壌測定法を室内と現場で確立できた。さらに土壌改良資材として近年注目されている燻炭という用語の由来を明らかにした。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (10 results)

All 2018 2017 Other

All Journal Article (2 results) (of which Peer Reviewed: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results) Book (2 results) Remarks (2 results)

  • [Journal Article] 稲作農家のための簡易土壌診断法の開発に向けて2018

    • Author(s)
      森塚直樹
    • Journal Title

      アグリバイオ

      Volume: 2 Pages: 43-47

    • NAID

      40021808258

    • Related Report
      2017 Research-status Report
  • [Journal Article] 過酸化水素処理後の電気伝導度測定による水田表層土壌の全窒素含量の推定2017

    • Author(s)
      森塚直樹、松岡かおり、桂圭佑、佐野修司、矢内純太
    • Journal Title

      日本土壌肥料学雑誌

      Volume: 88 Pages: 327-335

    • NAID

      130007394647

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed
  • [Presentation] 水田土壌肥沃度に及ぼす飼料イネ連作の影響-熊本県上益城郡御船町の事例-2018

    • Author(s)
      森塚直樹、松岡かおり
    • Organizer
      日本土壌肥料学会(2018年度関西支部講演会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 水田土壌の全窒素含量簡易推定法(オキシドール法)の圃場群スケールでの適用可能性2018

    • Author(s)
      森塚直樹、齊藤大樹、田島亮介、高橋行継、平井英明
    • Organizer
      日本土壌肥料学会2018年度大会(神奈川大会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 帯磁率の現場測定による水田作土の砂含量の簡易推定-熊本県上益城郡御船町の事例-2017

    • Author(s)
      森塚直樹、松岡かおり
    • Organizer
      日本土壌肥料学会2017年度仙台大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Estimation of total nitrogen content in surface paddy soils by measuring their electrical conductivity after a hydrogen peroxide treatment2017

    • Author(s)
      Naoki Moritsuka, Kaori Matsuoka, Keisuke Katsura, Shuji Sano, Junta Yanai
    • Organizer
      13th International Conference of the East and Southeast Asia Federation of Soil Science Societies
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Book] Nitrogen in Agriculture (Chapter 4, An Overview of the Effects of Heat Treatments on the Quality of Organic Wastes as a Nitrogen Fertilizer)2018

    • Author(s)
      Naoki Moritsuka and Kaori Matsuoka
    • Total Pages
      20
    • Publisher
      InTech
    • ISBN
      9789535137696
    • Related Report
      2017 Research-status Report
  • [Book] 水田の土の色・粒径組成の調査とその意義(最新農業技術 土壌施肥 vol.9)2017

    • Author(s)
      森塚直樹
    • Total Pages
      12
    • Publisher
      農文協
    • Related Report
      2016 Research-status Report
  • [Remarks] 京都大学教育研究活動データベース

    • URL

      https://kyouindb.iimc.kyoto-u.ac.jp/j/fE3rH

    • Related Report
      2018 Annual Research Report 2016 Research-status Report 2015 Research-status Report
  • [Remarks] 京都大学 教育研究活動データベース

    • URL

      https://kyouindb.iimc.kyoto-u.ac.jp/j/fE3rH

    • Related Report
      2017 Research-status Report

URL: 

Published: 2015-10-21   Modified: 2020-03-30  

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