Japan Geoscience Union Meeting 2019

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[J] Poster

O (Public ) » Public

[O-03] Poster presentations by senior high school students

Sun. May 26, 2019 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

convener:Tatsuhiko Hara(International Institute of Seismology and Earthquake Engineering, Building Research Institute), Katsuyoshi Michibayashi(Department of Earth and Planetary Sciences, Nagoya University), Miwa Kuri(International Research Institute of Disaster Science, Tohoku University), Kou Yamada(Waseda University)

1:45 PM - 3:15 PM

[O03-P17] Investigation into agricultural utilization by the aluminum removal of the trass

*Yuto Miki1 (1.Tokyo Metropolitan Tama High School of Science and Technology)

Keywords:Soil improvement, Volcanic ash, Allophane

In Japan, 25% of the land is volcanic ash soil. The main constituents of volcanic ash soil are Fe and Al, which are low in nutrients and microbes and tend to be acidic. Al is dissolved in acidity and chemically combined with P added as fertilizer to form AlPO 4. AlPO4 does not become nutritional. Also, Al damages plant roots. In order to solve this problem, this study aimed to remove Al from volcanic ash soil. This time, we investigated the basic survey of the soil and how much Al could be dissolved from the soil.