Research keywords (9)：
Nitrogen Removal
, ダイズ
, 水質
, 転換畑
, 土壌物理
, water quality
, Soybean
, Converted upland from paddy
, Soil Physics
Research theme for competitive and other funds (2)：
2011 - 2015 Mechano-chemical analysis of fluctuation range of paddy soil structure due to wet and dry cycle
2001 - 2003 転換畑土壌の物理性改善技術の開発
Papers (93)：
Akira Takamoto, Tomoki Takahashi, Kazuki Togami, Mari Namikawa, Kazunari Tsuchiya, Mizuhiko Nishida. Long-term experiments to identify response patterns of available soil nitrogen, rice, and soybeans to rice straw compost in a paddy-upland rotation field in Akita, Japan. Soil Science and Plant Nutrition. 2024. 1-7
Etsushi KUMAGAI, Masanori MINATO, Tomoki TAKAHASHI. Multifaceted Analysis of the Impact of Recent Changes in Climate and Soil Moisture on the Seed Yield of Tanba Black Soybeans in Tanba-sasayama City. Japanese Journal of Crop Science. 2024. 93. 4. 278-293
Junta Yanai, Chinari Nishimura, Atsushi Nakao, Kaori Ando, Toshiya Oga, Toshiya Otake, Katsutoshi Taki, Masahiro Kasuya, Takayuki Takayama, Hiroyuki Hasukawa, et al. Effects of long-term application of inorganic fertilizers and organic amendments on the turnover rates of fractionated soil organic carbon and their determining factors in paddy fields. Soil Science and Plant Nutrition. 2024. 1-7
Akira Takamoto, Tomoki Takahashi, Kazuki Togami, Ai Hishinuma. Responses of soybean, Glycine max (L.) Merr. to dolomite and calcite fertilization in an upland field converted from a paddy field. Plant Production Science. 2023
Mari Namikawa, Toshinori Matsunami, Takayuki Yabiku, Tomoki Takahashi, Maya Matsunami, Toshihiro Hasegawa. Analysis of yield constraints and seasonal solar radiation and temperature limits for stable cultivation of dry direct-seeded rice in northeastern Japan. Field Crops Research. 2023. 295. 108896
