Updated on 2021/06/09

写真b

OHSHIMA Hiroyuki

Assistant Professor

From Graduate School 【 display / non-display

  • 2004.04
    -
    2008.03

    Tokyo University of Agriculture  Graduate School, Division of Agriculture  Doctoral program (second term)  Completed

Employment Record in Research 【 display / non-display

  • 2008.04
    -
    2009.03

    Tokyo University of AgricultureFaculty of Applied Bio-Science   Department of Applied Biology and Chemistry   Researcher  

  • 2009.04
    -
    2011.03

    Tokyo University of AgricultureFaculty of Applied Bio-Science   Department of Applied Biology and Chemistry   Research Assistant  

  • 2011.04
    -
    2018.03

    Tokyo University of AgricultureFaculty of Applied Bio-Science   Department of Applied Biology and Chemistry   Assistant Professor  

  • 2018.04
     
     

    Tokyo University of AgricultureFaculty of Applied Bio-Science   Department of Agricultural Chemistry   Assistant Professor  

Research Areas 【 display / non-display

  • Plant nutrition/Soil science

Published Papers 【 display / non-display

  • Long-term cultivation test of green pak choi (Brassica rapa var. chinensis) for reduction of phosphorus fertilizer application in greenhouse soil with high phosphorus accumulation

        2021  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

    From 2001 to 2019, phosphorus fertilizer application was reduced over 100 harvests of pak choi (Brassica rapa var. chinensis) in greenhouse soil with high phosphorus accumulation.
    Available phosphate in the top soil declined over time to reach 152 P mg/100 g in 2011, but leveled off thereafter. Based on available phosphate in the top soil and phosphorus uptake in pak choi, we believe that phosphorus uptake of approximately 70% occurred from phosphorus accumulated in the soil. In the organic mixed fertilizer plots and garbage fertilizer plots, the efficiency of phosphorus fertilization was 48.8% and 60.0%, respectively. The cause of efficient phosphorus fertilization was considered to be mixing inorganic state phosphorus, such as a chemical fertilizer or palm husk combustion ash, into raw materials. There were no adverse effects on crop yields or growth even if phosphorus fertilizer was applied at a lower rate than phosphorus uptake after 100 harvests. This result contributes to removing the uneasiness of reducing phosphorus fertilizer.

  • Effects of betacyanin on salt tolerance in Swiss chard (Beta vulgaris var. cicla)

      46 ( 2 ) 3 - 13   2020.06  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

  • Effect of organic matter removal treatments and addition of aluminum-containing substances on incidence of Fusarium wilt of lettuce

    HIiroyuki OSHIMA, Daisei GOTO, Itsuo GOTO, Yoshiyuki MAEDA

    Soil Science and Plant Nutrition   61 ( 4 ) 613 - 619   2015.04  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

    DOI

  • Influence of soil type, phosphate application, and soil pH on the incidence of black root rot caused by Phomopsis sclerotioides

    Japanese Journal of Soil Science and Plant Nutrition   86 ( 2 ) 81 - 88   2015.04  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

  • Effects of Soil Chemical Properties on Vegetation of Alluaudia procera Drake, a Species Endemic to Madagascar

    YOSHIOKA Yuji, OHSHIMA Hiroyuki, MAEDA Yoshiyuki, YOSHIOKA Yuji

    東京農業大学学術集報   58 ( 3 ) 117 - 124   2013.12  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

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Books 【 display / non-display

  • 現代農業

    大島 宏行 (Part: Contributor )

    農文協  2018.10

  • Development and Demonstration of Reduction Techniques on Fusarium yellows of Celery

    (Part: Joint Work )

    2016.04 ISSN: 0037-4091