Chagyo Kenkyu Hokoku (Tea Research Journal)

Chagyo Kenkyu Hokoku (Tea Research Journal)

Published by Japanese Society of Tea Science and Technology

1,834 registered articles
(updated on April 13, 2026)

Online ISSN : 1883-941X
Print ISSN : 0366-6190
ISSN-L : 0366-6190

JOURNAL PEER REVIEWED FREE ACCESS

2025 Volume 2025 Issue 140

Articles at Annual Conference, October, 2025
Estimation of the Inorganic Nitrogen Content in the Soil Using a Soil Sensor in Tea Fields Takuya Kondo, Masakazu Shiwa, Koji Chutani, Eiji Nishino
Analysis of Consumer Preferences for Domestically Produced Oolong Tea Manufactured with a Drum-Type Withering Machine Masanori Atarashi
Insecticidal Activities of the Natural Pyrethrins Insecticide on the Tea Green Leafhopper, Matsumurasca onukii Ryuhei Yanagisawa, Masaaki Sudo, Hiroshi Yorozuya

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Most viewed articles (March 2026)

1

Contents of Individual Tea Catechins and Caffeine in Japanese Green Tea

Released on J-STAGE: July 31, 2009 | Volume 1996 Issue 83 Pages 21-28

Tetsuhisa GOTO, Hitoshi NAGASHIMA, Yuko YOSHIDA, Masaaki KISO
2

Microbiological Contamination of the Tea Extract Prepared with Cold Water

Released on J-STAGE: January 01, 2019 | Volume 2016 Issue 122 Pages 21-25

Kiyo Okazaki
3

Matcha: Quality and Health Benefits

Released on J-STAGE: January 01, 2021 | Volume 2018 Issue 126 Pages 1-8

Hideki Horie
4

Effects of Strong Shading Treatment on Plucked New Shoot Yield, Leaf Color, Free Amino Acid Content, and Unrefined Tea Quality in Tea Cultivars Recommended by the Shizuoka Prefecture

Released on J-STAGE: July 01, 2024 | Volume 2022 Issue 133 Pages 1-13

Hideyuki Katai, Saki Ikeda, Toshikazu Suzuki
5

Influence of Continuous Ingestion of Matcha Latte on Stress: A Preliminary Study

Released on J-STAGE: July 01, 2023 | Volume 2021 Issue 131 Pages 9-14

Manami Monobe, Sachiko Nomura, Kaori Ema

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