Updated on 2022/02/19

写真b

ASAI Toshimitsu

Associate Professor

From Graduate School 【 display / non-display

  • 2002.04
    -
    2004.03

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

  • 2004.04
    -
    2007.03

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

Employment Record in Research 【 display / non-display

  • 2008.04
    -
    2016.03

    Tokyo University of AgricultureFaculty of Regional Environment Science   Assistant Professor  

  • 2016.04
    -
    2017.03

    Tokyo University of AgricultureFaculty of Regional Environment Science   Associate Professor  

  • 2017.04
     
     

    Tokyo University of AgricultureFaculty of Regional Environment Science   Department of Regional Regeneration Science   Associate Professor  

Academic Society Membership 【 display / non-display

  • 2020.05
     
     
     

    The Jpanese Society of Irrigation, Drainage and Rural Engineering

Published Papers 【 display / non-display

  • Changes in Growth of Egeria densa in Shading Conditions (now printing)

    ASAI Toshimitsu, FUJIKAWA Tomonori, TAKEUCHI Yasushi, SUZUKI Shinichi, NAKAMURA Yoshio

    Irrigation, Drainage and Rural Engineering Journal     2022  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

    This study aimed to develop a new method to control Egeria densa, which overgrows in agricultural irrigation canals. We conducted two experiments (one in the laboratory and one in the field), focused on changes in light conditions and the growth of E. densa. In the laboratory experiment, the maximum tensile load of the stems was significantly reduced when the light was shaded to about 20m-2 s-1 (1,400 Lux). We discovered that shading exerted a significant negative effect on the number of roots. Furthermore, in the field experiment, which was conducted in an actual agricultural canal, the maximum tensile load on stems was reduced in both the 85-90% and 95-98% shade plots. In particular, in the 95-98% shade plot, the tensile load was reduced to about half of that in the control plot(non-shade) during the high grow season from August to October.

  • Study on Extermination of Egeria densa by Shading Nets in Agricultural Irrigation Canal

    ASAI Toshimitsu, FUJIKAWA Tomonori, TAKEUCHI Yasushi, NAKAMURA Yoshio, SUZUKI Shinichi

    Water, Land and Environmental Engineering   88 ( 11 ) 893 - 897   2020.11  [Refereed]  [Invited]

    Academic JournalResearch paper (scientific journal)   Joint Work

  • Study on applicability of Phytoremediation techniques for Pb contaminated soil

    Shiro WAKUI,Toshimitsu ASAI*,Yousuke WATANABE,Akihiko HORIKAWA,Masayo YAMASAKI,Kentaro IIJIMA

    Journal of Japanese Society of Turfgrass Science   48 ( 1 ) 17 - 24   2019.10  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

    We used Chenopodium album var. centrorubrum, Gossypium arboretum, Festuca araundinacea, Festuca rubra var. genuina. Hack. Poa pratensis and Cynodon dactylon (L.)Pers. cv. `Riviera', which planting and cultivation techniques have been already established, to try phytoremediation of lead in the simulated contaminated soil. Our results found that C. album and G. arboretum increased Pb concentration levels in the plant body over long-term cultivation (115 days and 96 days) rather than short-term cultivation (63 days and 22 days). Furthermore, these tendency was remarkable in G. arboretum. On the other hand, C. album recorded the highest reading for Pb resistance. Additionally, that dry weight was large. We considered the amount-per-pot Pb removed to be the largest in this study. Cool-season turf grasses (F. araundinacea, F. rubra, P. pratensi) had higher leaf Pb concentrations than warm-season grasses (C. dactylon). While those grasses had a plant body smaller than other test plants, their root Pb concentration was very high. Thus, it was revealed that a turf grass Pb removal amount-per-pot can be obtained equivalent to C. album.
    *Corresponding author

  • Growth response of perennial ryegrass (Lolium perenne L.) under different irradiation time and color temperature of high flux light emitting diode (LED) Lights

    Satoru TANAKA, Toshimitsu ASAI*, Tomonori KATAOKA, Hiroshi OIKAWA, Yoko KONNO, Chizuko MIZUNIWA, Shimpei TAKAHASHI

    Journal of Japanese Society of Turfgrass Science   47 ( 2 ) 11 - 20   2019.03  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

    *Corresponding author

  • Growth Response of Tifway Bermudagrass (Cynodon dactylon ×C. transvaalensis) under Different Irradiation Time and Color Temperature of High Flax Light Emitting Diodes (LEDs) Lights

    Toshimitsu ASAI, Satoru TANAKA, Tomonori KATAOKA, Hiroshi OIKAWA, Yoko KONNO, Chizuko MIZUNIWA, Shimpei TAKAHASHI

    Journal of Japanese Society of Turfgrass Science   46 ( 2 ) 57 - 64   2017.10  [Refereed]

    Academic JournalResearch paper (scientific journal)   Joint Work

display all >>

Review Papers, etc. 【 display / non-display

  • The Discussion on Intellectual Property Rights of Greening Plants

    Toshimitsu Asai

    Journal of Japanese Society of Turfgrass Science ( Japanese Society of Turfgrass Science )  48 ( 2 ) 195 - 198   2020.03

    Introduction and explanation (scientific journal)   Single Work1

  • Scheme and Problem of Related to Park Management for Public-Private Partnership

    Toshimitsu Asai

    Journal of Japanese Society of Turfgrass Science ( Japanese Society of Turfgrass Science )  48 ( 1 ) 75 - 76   2019.10

    Introduction and explanation (scientific journal)   Single Work1

  • For Environment Welfare from Financial Welfare

    Toshimitsu Asai

    Journal of Japanese Society of Turfgrass Science ( Japanese Society of Turfgrass Science )  47 ( 2 ) 131 - 133   2019.03

    Introduction and explanation (scientific journal)   Single Work1

  • Development of Urban Greenery for 2020-2030

    Toshimitsu Asai, Kentaro Iijima

    Journal of Japanese Society of Turfgrass Science ( Japanese Society of Turfgrass Science )  47 ( 1 ) 44 - 47   2018.10

    Introduction and explanation (scientific journal)   Joint Work2

  • The Situation of the Recent Urban Greenery and Ground Cover Plants around Kansai

    Toshimitsu Asai, Kentaro Iijima

    Journal of Japanese Society of Turfgrass Science ( Japanese Society of Turfgrass Science )  46 ( 2 ) 174 - 177   2018.03

    Introduction and explanation (scientific journal)   Joint Work2

display all >>

Oral Presentation 【 display / non-display

  • Early Growth Response of Lolium perenne L. Under Different Wavelengths of Light Environments

    Marina WATANABE,Toshimitsu ASAI, Shinpei TAKAHASHI

    2016.05  -  2016.05 

  • Comparative Study of Phytoremediation of Nitrogen dioxide for Sedum and Zoysia matrella

    Toshimitsu ASAI

    9th TOIN International Symposium on Biomedical Engineering  2014.11  -  2014.11 

  • Chromium and lead absorption ability and growth reaction of Artemisia indica var.maximowiczii in a heavy metal-contaminated soil

    Kazunori YOKOYAMA, Kota KURIYAMA, Muneyuki HONDA, Shiro WAKUI, Shuzo TOROBU, Susumu YOKOTSUKA, Satoshi NAITO, Toru YOKOTSUKA, Toshimitsu ASAI, Kentaro IIJIMA

    7th TOIN International Symposium on Biomedical Engineering  2012.11  -  2012.11 

  • A Study of Decontamination Capacity of Nitrogen Dioxide for Sedum and Zoysia Matrella. in the Chamber

    2012.05  -  2012.05 

  • Stress reaction to Several Plant on Pd Pollution soil

    5th TOIN International Symposium on Biomedical Engineering  2010.11  -  2010.11