DOI RYOICHI 土居良一

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DOI Ryoichi 土居良一

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Researcher Number	20587125
Other IDs	https://orcid.org/0000-0002-3023-0136
Affiliation (Current)	2025: 大東文化大学, 社会学部, 教授 2025: 大東文化大学, 環境創造学部, 准教授
Affiliation (based on the past Project Information) *help	2015: 大東文化大学, 公私立大学の部局等, 准教授 2015: 大東文化大学, 環境創造学部, 准教授 2012 – 2014: 東京大学, 農学生命科学研究科, 助教 2010 – 2011: 東京大学, 大学院・農学生命科学研究科, 助教
Review Section/Research Field	Principal Investigator Irrigation, drainage and rural engineering/Rural planning Except Principal Investigator Irrigation, drainage and rural engineering/Rural planning
Keywords	Principal Investigator 土壌水分 / デヒドロゲナーゼ活性 / 土壌カラム / チュニジア / タイ / 強度 / セルラーゼ / デヒドロゲナーゼ / 現位置土壌酵素 / リグノセルロース分解 … More / フォルマザンの毒性 / 現位置測定 / 土壌酵素 / 開発適正技術 / 原位置土壌酵素 / 土壌微生物 / リグノセルロース分解活性 / 半乾燥気候 / サバナ気候 / 乾燥ストレス / 節水効果 / 労力軽減 / 土壌環境保全 / 水資源 / 土壌と地下水の保全 / 適正技術 / 乾燥地 / 園芸作物 … More Except Principal Investigator 温室効果ガス / 土壌水分 / 間断灌漑 / 東南アジア / 水田 / 稲作技術 / 気候変動適応策 / 稲作 / 灌漑排水 / 農業技術 / SRI Less

A basic study for measurements of in situ soil enzymatic activitiesPrincipal Investigator
- Principal Investigator
  
  DOI Ryoichi
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Irrigation, drainage and rural engineering/Rural planning
- Research Institution
  The University of Tokyo
Development of comparison and standardization technique in SRI cultivation in Southeast Asia from the viewpoint of Agricultural Engineering
- Principal Investigator
  
  Mizoguchi Masaru
- Project Period (FY)
  2011 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Irrigation, drainage and rural engineering/Rural planning
- Research Institution
  The University of Tokyo
A water-saving agricultural technology using passive underground watering and retaining moisture in residual rootsPrincipal Investigator
- Principal Investigator
  
  DOI Ryoichi
- Project Period (FY)
  2010 – 2011
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Research Field
  
  Irrigation, drainage and rural engineering/Rural planning
- Research Institution
  The University of Tokyo

All 2014 2013 2012 Other

All Journal Article Presentation

[Journal Article] Pixel Color Clustering of Multi-Temporally Acquired Digital Photographs of a Rice Canopy by Luminosity-Normalization and Pseudo-Red-Green- Blue Color Imaging2014
- Author(s)
  Ryoichi Doi, Chusnul Arif, Budi Indra Setiawan & Masaru Mizoguchi
- Journal Title
  
  Sci World J
  
  Volume: 2014
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-23255014
[Journal Article] Precise micromolar-level glucose determination using a glucose test strip for quick and approximate millimolar-level estimation2014
- Author(s)
  Ryoichi DOI
- Journal Title
  
  Anal. Methods
  
  Volume: 6 Issue: 23 Pages: 9509-9513
- DOI
  10.1039/c4ay02219j
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24658200
[Journal Article] From Maximization to Optimization: A Paradigm Shift in Rice Production in Thailand to Improve Overall Quality of Life of Stakeholders2014
- Author(s)
  Ryoichi DOI & Supachai PITIWUT
- Journal Title
  
  Sci World J
  
  Volume: 2014
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-23255014
[Journal Article] Detection of Cassava Leaves in Multi-Temporally Acquired Digital Images of a Cassava Field Under Different Brightness Levels by Simultaneous Binarization of the Images Based on Indices of Redness/Greenness2014
- Author(s)
  Mallika Srisutham, Ryoichi Doi, Anan Polthanee, & Masaru Mizoguchi
- Journal Title
  
  Modern Appl Sci
  
  Volume: 8 Issue: 5 Pages: 87-96
- DOI
  10.5539/mas.v8n5p87
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-23255014
[Journal Article] Quantitative use of luminosity-normalized grayscale images of greenness, redness and yellowness of a rice canopy derived from multi-temporally acquired digital photographs2013
- Author(s)
  Doi R., Arif C., Setiawan BJ and Mizoguchi M
- Journal Title
  
  Int J. Agric. Biol.
  
  Volume: 未定
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23255014
[Journal Article] Feasibility of system of rice intensification practices in 　natural and socioeconomic contexts in Thailand2013
- Author(s)
  Doi, R. and Mizoguchi, M.
- Journal Title
  
  International Journal of Sustainable Development and World Ecology
  
  Volume: 20(5) Issue: 5 Pages: 433-441
- DOI
  10.1080/13504509.2013.801002
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23255014
[Journal Article] Quantification of leaf greenness and leaf spectral profile in plant diagnosis using an optical scanner2012
- Author(s)
  Doi, R.
- Journal Title
  
  Ciencia e Agrotecnologia
  
  Volume: 36 Pages: 309-317
- Data Source
  KAKENHI-PROJECT-22880011
[Presentation] Wet/dry Paddy Cycles to Optimize Rice Production for Total Quality of Life: Regarding Rice as a Water-resistant Plant2013
- Author(s)
  Ryoichi DOI and Supachai PITIWUT
- Organizer
  The 10th INWEPF Steering Meeting and Symposium
- Place of Presentation
  Chiang Mai, Thailand
- Data Source
  KAKENHI-PROJECT-24658200
[Presentation] Application of Neural Networks for Soil Moisture Estimation in SRI Paddy Field with Limited Meteorological Data
- Author(s)
  Chusnul Arif, Budi Indra Setiawan, Masaru Mizoguchi, Ryoichi Doi
- Organizer
  農業農村工学会全国大会
- Place of Presentation
  北海道大学
- Data Source
  KAKENHI-PROJECT-23255014

1. Mizoguchi Masaru (00181917)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
2. YAMAJI Eiji (10143405)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. KOBAYASHI Kazuhiko (10354044)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. NOBORIO Kousuke (60311544)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. ARAKI Tetsuya (40420228)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. YOSHIDA Koushi (20420226)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. TORIYAMA Kazunobu (30355557)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. YOKOYAMA Shigeki (30425590)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 富田晋介 (60378966)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

DOI RYOICHI 土居 良一

DOI Ryoichi 土居 良一

Research Projects

Research Products

Co-Researchers

A basic study for measurements of in situ soil enzymatic activitiesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Development of comparison and standardization technique in SRI cultivation in Southeast Asia from the viewpoint of Agricultural Engineering

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

A water-saving agricultural technology using passive underground watering and retaining moisture in residual rootsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Pixel Color Clustering of Multi-Temporally Acquired Digital Photographs of a Rice Canopy by Luminosity-Normalization and Pseudo-Red-Green- Blue Color Imaging2014

Author(s)

Journal Title

Data Source

[Journal Article] Precise micromolar-level glucose determination using a glucose test strip for quick and approximate millimolar-level estimation2014

Author(s)

Journal Title

DOI

Data Source

[Journal Article] From Maximization to Optimization: A Paradigm Shift in Rice Production in Thailand to Improve Overall Quality of Life of Stakeholders2014

Author(s)

Journal Title

Data Source

[Journal Article] Detection of Cassava Leaves in Multi-Temporally Acquired Digital Images of a Cassava Field Under Different Brightness Levels by Simultaneous Binarization of the Images Based on Indices of Redness/Greenness2014

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Quantitative use of luminosity-normalized grayscale images of greenness, redness and yellowness of a rice canopy derived from multi-temporally acquired digital photographs2013

Author(s)

Journal Title

Data Source

[Journal Article] Feasibility of system of rice intensification practices in natural and socioeconomic contexts in Thailand2013

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Quantification of leaf greenness and leaf spectral profile in plant diagnosis using an optical scanner2012

Author(s)

Journal Title

Data Source

[Presentation] Wet/dry Paddy Cycles to Optimize Rice Production for Total Quality of Life: Regarding Rice as a Water-resistant Plant2013

Author(s)

Organizer

Place of Presentation

Data Source

[Presentation] Application of Neural Networks for Soil Moisture Estimation in SRI Paddy Field with Limited Meteorological Data

Author(s)

Organizer

Place of Presentation

Data Source

DOI RYOICHI 土居良一

DOI Ryoichi 土居良一

[Journal Article] Feasibility of system of rice intensification practices in 　natural and socioeconomic contexts in Thailand2013