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Professor |
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Laboratory Address |
桜丘1-1-1 東京農業大学 農大サイエンスポートN603 |
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Laboratory Phone number |
03-5477-2310 |
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Contact information |
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External Link |
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KATO Taku Professor |
From School 【 display / non-display 】
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University of Tsukuba Second Cluster of College Graduated
1998.04 - 2000.03
Country：Japan
From Graduate School 【 display / non-display 】
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University of Tsukuba Doctor Course Completed
2000.04 - 2005.03
Country：Japan
Employment Record in Research 【 display / non-display 】
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Tokyo University of Agriculture Faculty of Applied Bio-Science Department of Applied Biology and Chemistry Associate Professor
2015.04 - 2018.03
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Tokyo University of Agriculture Faculty of Applied Bio-Science Department of Agricultural Chemistry Associate Professor
2018.04 - 2024.03
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Tokyo University of Agriculture Faculty of Applied Bio-Science Department of Agricultural Chemistry Professor
2024.04
External Career 【 display / non-display 】
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Kobe University Assistant Professor
2012.08 - 2015.03
Country：Japan
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Obihiro University of Agriculture and Veterinary Medicine Researcher
2009.04 - 2012.07
Country：Japan
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茨城県農業総合センター農業研究所 土壌・環境研究室 研究員
2005.04 - 2009.03
Country：Japan
Professional Memberships 【 display / non-display 】
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日本土壌肥料学会
1999.12
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日本ペドロジー学会
1999.10
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日本腐植物質学会
2004.11
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Japan association on the environmental studies
2018.01
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日本分析化学会
2021.01
Research Areas 【 display / non-display 】
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Environmental Science/Agriculture Science / Landscape science
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Life Science / Plant nutrition and soil science
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Environmental Science/Agriculture Science / Environmental dynamic analysis
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Environmental Science/Agriculture Science / Environmental agriculture
Papers 【 display / non-display 】
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Effects of biochar on growth, response to water stress and post-stress recovery in underutilized vegetable Hibiscus sabdariffa from Malawi Reviewed International coauthorship International journal
1. Dickson Mgangathweni Mazibuko, Sarvesh Maskey, Kiseki Kurashina, Hiromu Okazawa, Hiroyuki Oshima, Taku Kato and Hidehiko Kikuno
Crops 5 ( 13 ) 1 - 24 2025.03
Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI
Globally, Hibiscus sabdariffa L. (Malvaceae), commonly known as roselle or hibiscus, is a multipurpose vegetable crop. In Malawi, where it is referred to as ‘Chidede’ (Chichewa), it is recognized as an underutilized traditional plant with significant potential. Traditional vegetable production in Malawi is being promoted to enhance nutritional food security and climate change mitigation. Recently, biochar has become increasingly used to improve agricultural productivity through climate-smart technologies. To date, the influence of rice husk biochar (RHB) on H. sabdariffa remains underexplored. This study aims to evaluate the effects of RHB on the vegetative growth, response to water stress, and post-stress recovery of H. sabdariffa using a greenhouse pot experiment. Our findings indicate that biochar-amended soil enhanced plant height, stem thickness, and total leaf area by 16.5%, 12.0%, and 12.9%, respectively. Water stress significantly reduced all assessed growth parameters (p < 0.05) except total leaf area and average leaf area per plant. Under water stress conditions, biochar-treated plants were significantly taller (p < 0.05) and had a higher specific leaf area (p < 0.05), demonstrating a positive effect. A post-stress recovery analysis revealed that H. sabdariffa fully recovered in height and biomass, while partial recovery was observed for root collar diameter and compensatory recovery for total leaf area and average leaf area. Biochar-treated plants exhibited superior post-stress recovery compared to those grown in unamended soil. Overall, plants grown with biochar were taller and had a larger root collar diameter, higher stem and leaf fresh biomass, and greater total leaf area. These findings underscore biochar’s potential as a sustainable soil amendment for enhancing growth and resilience in underutilized crops. Further studies should explore field experiments to access environmental heterogeneity and examine the diverse factors influencing biochar efficiency.
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Effect of biodegradable mulching plastics on soil chemical properties, greenhouse gas emission, and plant growth under aerobic and flooding conditions Reviewed International journal
Kazuyuki Inubushi, Riki Satomi, Meisei Ohsaka, Iori Sahara, Taku Kato, Hiroyuki Oshima & Miwa Matsushima
Soil Science and Plant Nutrition 2025.02
Language：English Publishing type：Research paper (scientific journal)
This study aims to examine the effect of biodegradable mulching plastics on soil chemical properties, greenhouse gas emission, and paddy rice growth under flooding conditions to compare with aerobic upland soil conditions. Four treatments were set-up with sandy paddy soil. Incubation experiment was conducted using three materials under aerobic pre-flooding condition for 0–3 months and then anaerobic flooding conditions for 3 months, measuring soil pH, carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) productions; rice growth, and yield. Amendments were biodegradable mulching sheets made of polybutylene adipate terephthalate (PBAT), or polybutylene-succinate (PBS), to compare with non-biodegradable mulching sheet made of low-density polyethylene (LDPE), mixed with paddy soil or without amendment (soil only; as control). Pot experiment was also conducted with the same materials, amended to the same soils, and rice seedings were transplanted 1 month after amendment and pre-flooding period under aerobic condition. During aerobic incubation, soil pH and CO2 was higher with plastics. N2O was produced during pre-flooding period, but no significant difference among the treatments. During anaerobic period, both CO2 and CH4 production were larger with biodegradable plastics with aerobically preincubated for 1 month than control and aerobically preincubated for 2–3 months. Rice growth, grain yield, and yield components had no significant difference among treatment, except gain number reduction with PBS. More CH4 was emitted with LDPE per yield scale. Biodegradable mulching plastics increased soil pH, CO2, and CH4 production under anaerobic conditions, although paddy rice growth was not affected. We need further examination with different materials, soils, and crop rotation.
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Effect of biodegradable plastics on greenhouse gas emission and paddy rice growth under flooding conditions Reviewed International journal
Kazuyuki Inubushi · Iori Sahara · Taku Kato · Hiroyuki Oshima
Biology and Fertility of Soils 60 875 - 882 2024.07
Language：English Publishing type：Research paper (scientific journal) Publisher：Springer
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Effects of land-use and organic fertilization on soil enzyme in a farmer’s fields Reviewed
Ushiwata Silvio Yoshiharu, Kawashima Ayana, Oshima Hiroyuki, Kato Taku, Yashima Miwa, Inubushi Kazuyuki
Soil Microorganisms 78 ( 1 ) 20 - 25 2024.04
Language：English Publishing type：Research paper (scientific journal) Publisher：Japanese Society of Soil Microbiology
The soil quality is measured through the use of indicators that measure or reflect the environmental status or sustainability condition of the ecosystem. Microbial attributes are classified as biological indicators. The use of these indicators in the soil analysis routine are promising. In this research, the effect of two land uses (paddy or upland field) with two different soil management (conventional system or conventional system with previous organic matter applied) on soil microbial properties was evaluated in a farmer’s field. The soil enzymatic activities (urease, glucosidase and arylsulfatase), with exception of acid phosphatase, showed sensitive and consistent responses to the effect of soil management. The results showed higher soil enzymatic activity in paddy than upland field. Total C and N were 1.3-1.8 times increased by organic amendments as well as N mineralization 1.8-2.4 times, while enzyme activities in upland soil 1.5-2.4 times, although 0.7-1.3 times in paddy soil. In both land-uses, the large amount of organic fertilizer applications in previous organic amendments contributed to improve the soil chemical properties and soil microbiological activities.
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Relationship between herbivory and leaf traits in mangroves on Iriomote Island, southern Japan Reviewed International journal
Yu Hirano, Motoki Maruia, Shuhei Tachikakea, Taku Kato, and Nobuo Imai
JOURNAL OF FOREST RESEARCH 2023.11
Language：English Publishing type：Research paper (scientific journal) Publisher：Taylor & Francis
Books and Other Publications 【 display / non-display 】
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99項目でマスター 生物・化学
大石祐一・山本祐司・安藤達彦・加藤拓・小林謙一・須恵雅之・鈴木司・鈴木敏弘・福田亨・松本雄宇・盛喜久江（第6章 原子の構造と周期表7-12・第9章 酸と塩基37-40/42-49）
建帛社 2025.03 （ ISBN:978-4-7679-0774-1 ）
Total pages：203 Language：Japanese
生物40項目，化学59項目，計99項目で整理し，項目毎の見開きで完結。左ページでは押さえておきたいポイントを簡潔にまとめ，右ページにはその確認のための練習問題を配置し，1項目ずつしっかりと理解を図ることができるよう記述。
生物学・化学領域の大学へ入学が決まったものの，高校では生物あるいは化学を苦手に（不安に）感じていた者の事前学習，大学における入学前教育や入学後の導入リメディアル教科の教科書，あるいは基礎科目としての生物・化学の教科書として最適。 -
日本の土壌事典
（ Role： Contributor , 4. 10.1火山放出物未熟土）
朝倉書店 2023.10
Total pages：357 Responsible for pages：112-114 Language：Japanese Book type：Scholarly book
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The Soils of Japan -Major Soil Types-
Y. Takata, M. Kawahigashi, K. Kida, M. Tani, R. Kinoshita, T. Ito, M. Shibata, T. Takahashi, K. Fujii, A. Imaya, H. Obara, Y. Maejima, K. Kohyama and T. Kato（ Role： Contributor）
Springer 2021.02
Language：English Book type：Scholarly book
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改訂 土壌学概論
加藤 拓（ Role： Contributor , 3. 土壌調査・土壌分類）
朝倉書店 2020.10 （ ISBN:978-4-254-43127-8 ）
Total pages：192 Responsible for pages：24-33 Language：Japanese Book type：Textbook, survey, introduction
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土のひみつ ―食料・環境・生命―
加藤拓（ Role： Joint author , 土壌生成の実態−三宅島噴火後の土壌断面の発達と植生−）
朝倉書店 2015.09 （ ISBN:978-4-254-40023-6 ）
Language：Japanese Book type：General book, introductory book for general audience
Misc 【 display / non-display 】
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“Soil and plant science for a sustainable future”: 1st “Soil-based approaches to the solution of global warming”
Senoo Keishi, Akiyama Hiroko, Toma Yo, Kato Taku, Shirato Yasuhito, Nishina Kazuya, Fujiwara Toru
Japanese Journal of Soil Science and Plant Nutrition 95 ( 4 ) 197 - 230 2024.08
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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Contribution to prevent global warming by the fields of soil science and plant nutrition
Fujiwara Toru, Hayashi Kentaro, Nakajima Toru, Kato Taku, Senoo Keishi, Masuda Yoko, Shen Haoyang, Xu Zhenxing, Zhang Zhengcheng, Yamanaka Haruka, Sato Sakura, Ito Hideomi, Shiratori Yutaka, Ohba Hirotomo, Kogure Toshihiro, Takahashi Yoshio, Shen Weishou, Yanagisawa Shuichi, Higuchi Kyoko
Japanese Journal of Soil Science and Plant Nutrition 94 ( 3 ) 230 - 235 2023.06
Language：Japanese Publisher：Japanese Society of Soil Science and Plant Nutrition
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Exhibition report of the EcoPro 2022
20230405
Japanese Journal of Soil Science and Plant Nutrition 94 ( 2 ) 154 - 154 2023.04
Authorship：Lead author Publisher：Japanese Society of Soil Science and Plant Nutrition
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Exhibition report of the EcoPro 2021
Kato Taku
Japanese Journal of Soil Science and Plant Nutrition 93 ( 2 ) 90 - 90 2022.04
Authorship：Lead author Language：Japanese Publishing type：Meeting report Publisher：Japanese Society of Soil Science and Plant Nutrition
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Ca Application Effect That Contributes to Stable Production of Paddy Rice in Unseasonable Weather Invited
Kato Taku
Nippon Shokuhin Kagaku Kogaku Kaishi 68 ( 9 ) 395 - 397 2021.09
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：公益社団法人 日本食品科学工学会
<p>The main component of eggshells is calcium carbonate, which has been used for Ca research in rice cultivation in Japan. The effectiveness of Ca ions on rice was discovered in the 1 960 s by means of hydroponics, but the effect of Ca application on soil-grown rice has not yet been studied. The high-temperature ripening disorder of paddy rice in Japan in recent years is a sterility phenomenon caused by the failure of assimilation products produced in the leaves to be transferred to the ears. Therefore, to maintain the translocation of assimilated products produced in rice leaves, supplying Ca continuously even in small amounts is more important than increasing the Ca concentration in the plant. If research can be conducted on not only calcium carbonate, the main component of eggshells, but also the translocation rate of assimilates in paddy rice, and if high-temperature ripening disorders caused by weather conditions can be avoided, eggshells can be used as an agricultural material that contributes to food security in Japan.</p>
DOI： 10.3136/nskkk.68.395
Past of Commissioned Research 【 display / non-display 】
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水稲栽培における化学的緩効性窒素肥料の肥効特性把握に関する研究
2025.04
受託研究 The General Consignment Study
加藤拓
Authorship：Principal investigator
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有機資源を組合せた肥料の有効性に関する研究
2024.04
キユーピー株式会社 受託研究 The General Consignment Study
Authorship：Principal investigator
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バイオスティミュラントの評価研究及び現場実装に向けた技術開発に関する研究
2023.05 - 2024.03
株式会社AGRI SMILE 共同研究 The General Consignment Study
Authorship：Principal investigator
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ユーグレナ農業資材の土壌への影響とその作用機序の解明に関する研究
2022.02 - 2023.03
株式会社ユーグレナ 受託研究 The General Consignment Study
Authorship：Principal investigator
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水熱炭化脱離液の機能性評価に関する研究
2021.04 - 2022.03
株式会社神鋼環境ソリューション 共同研究 The General Consignment Study
Authorship：Principal investigator
Presentations 【 display / non-display 】
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Is soil carbon content, including plant roots, greater in historically older grasslands? Comparison to new grassland and to forest
Taku KATO, Haruko SAITO, Kazuyuki INUBUSHI, Hiroyuki OSHIMA
71st Annual Meeting of Ecological Society of Japan 2024.03 Ecological Society of Japan
Event date： 2024.03
Language：Japanese Presentation type：Symposium, workshop panel (public)
Venue：Yokohama National University
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Responses of wood nutrients to nitrogen and phosphorus fertilization in Bornean tropical rainforests
Hiyori TAKAHASHI, Yu HIRANO, Taku KATO, Ko HINOKIDANI, Ryota AOYAGI, Kanehiro KITAYAM, Nobuo IMAI
2024.03 Ecological Society of Japan
Event date： 2024.03
Language：Japanese Presentation type：Poster presentation
Venue：Yokohama National University
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Species-specific responses of foliar nutrient resorptions to nitrogen and phosphorus fertilization in Bornean tropical rain forests
Yu HIRANO, Hiyori TAKAHASHI, Taku KATOU, Ryota AOYAGI, Kanehiro KITAYAMA, Nobuo IMAI
2024.03 Ecological Society of Japan
Event date： 2024.03
Language：Japanese Presentation type：Poster presentation
Venue：Yokohama National University
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歴史の古い草原は根茎量が多いか？ ー新しい草原、森林との比較ー
寺嶋 悠人・野口 幹仁 ・平山 楽・冨高 まほろ・土井 結渚・鈴木 暁久・朝田 愛理・丑丸 敦史・黒川 紘子・加藤 拓・田中 健太
第71回日本生態学会大会 2024.03
Event date： 2024.03
Language：Japanese Presentation type：Poster presentation
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黒ボク土の酸化鉄含量が溶存有機物吸着に及ぼす影響（予報）
小山侑里子・大石菜月・義本真鈴・大島宏行・犬伏和之・加藤拓
日本土壌肥料学会2023年度関東支部会 2023.11 日本土壌肥料学会
Event date： 2023.11
Language：Japanese Presentation type：Poster presentation
Venue：東京農業大学世田谷キャンパス
Committee Memberships 【 display / non-display 】
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日本ペドロジー学会 幹事（社会教育事業担当）
2018.04
Committee type：Academic society
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日本土壌肥料学会 Soil Science and Plant Nutrition編集委員会 編集委員（化学）
2019.10 - 2023.09
Committee type：Academic society
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日本土壌肥料学会 広報担当理事
2019.05 - 2023.05
Committee type：Academic society
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日本環境学会 幹事
2019.04 - 2021.04
Committee type：Academic society
Basic stance of industry-university cooperation 【 display / non-display 】
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生産環境現場において生じる様々な現象（収穫量が上がった、品質が良くなった、病気にならなかったなど）を土壌学というツールを使って科学的に実証・解明することを目指して研究を行っています。
Attractiveness of Research 【 display / non-display 】
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大学は「学びの場」です。主体的に学ぶ意欲があれば、いくらでも自身が成長できる「飛躍の場」でもあります。本学で学ぶ4年間が充実したものになるように励んで下さい。