NOBUHITO SEKIYA, Maiko Goto, Ayaka Mae, Natsumi Okinaka, Hinata Kato, Masaru Hamajima, Asaka Murai (2024) Shoot and root responses of rice plants to belowground environmental heterogeneity within a local rice farming community. Discover Agriculture 2 (1) 1-11 (URL)
NOBUHITO SEKIYA, Toru Nakajima, and Takeshi Tsuji (2024) Shaping rice preferences: effects of farming information, package design and consumer attributes. Sustainability 16 (22) 10099 (URL)
NOBUHITO SEKIYA, Ayaka Mae, Mchuno Alfred Peter, Beno Kiwale Anton, Tasuku Eigen, Saki Yamayoshi, Masaru Sakai, Kunio Watanabe, and Takaharu Kameoka (2024) Sustainable nitrogen management in rice farming: spatial patterns of nitrogen availability and implications for community-level practices. Sustainability 16 (22) 9880 (URL)
Kazuaki Onoda, Reina Ohta, Mchuno Alfred Peter, Raphael Edifor, Masaru Hamajima, Ayaka Mae, Asaka Murai, Makoto Kondo, NOBUHITO SEKIYA (2024) Post-heading accumulation of nonstructural carbohydrates and nitrogen in rice (Oryza sativa L.) roots. Field Crops Research 315 (URL) (PDF)
Sato Nozomi Kaneko, Takeshi Tsuji, Yoshihiro Iijima, NOBUHITO SEKIYA, and Kunio Watanabe (2023) Predicting rice lodging risk from the distribution of available nitrogen in soil using UAS images in a paddy field. Sensors 23, 14: 6466(URL)
Baoru Li, Xiying Zhang, Shigenori Morita, NOBUHITO SEKIYA, Hideki Araki, Huijie Gu, Jie Han, Yang Lu, Xiuwei Liu (2022) Are crop deep roots always beneficial for combating drought: A review of root structure and function, regulation and phenotyping. Agricultural Water Management 271, (URL) (PDF)
Haotian Li, Lu Li, Na Liu, Suying Chen, Liwei Shao, NOBUHITO SEKIYA, Xiying Zhang (2022) Root efficiency and water use regulation relating to rooting depth of winter wheat. Agricultural Water Management 269, (URL) (PDF)
NOBUHITO SEKIYA, Toru Nakajima, Nobuaki Oizumi, Chihiro Kurosawa, Naswiru Tibanyendela, Mchuno Alfred Peter, Motonori Tomitaka, Keiko T. Natsuaki (2022) Agronomic practices preventing local outbreaks of rice yellow mottle virus disease revealed by spatial autoregressive analysis. Agronomy for Sustainable Development 42, 15 (URL) (PDF)
NOBUHITO SEKIYA, Nobuaki Oizumi, Theodore T. Kessy, Kitulu M. J. Fimbo, Motonori Tomitaka, Keisuke Katsura, Hideki Araki (2020) Importance of market-oriented researc for rice production in Tanzania. A review. Agronomy for Sustainable Development 40 (1): 1-16 (URL) (PDF)
Mamoru Sato, Hiroko Akai, Yuichi Saito, Tsugiko Takase, Hidetoshi Kikunaga, NOBUHITO SEKIYA, Tsutomu Ohtsuki, Katsuhiko Yamaguchi (2019) Use of different surface covering materials to enhance removal of radiocaesium in plants and upper soil from orchards in Fukushima prefecture. Journal of Environmental Radioactivity 196: 204-211. (PDF)
NOBUHITO SEKIYA, Motonori Tomitaka, Nobuaki Oizumi, Adam Gabriel Pyuza, Richard James Shayo, Anne Niediwe Assenga, Takayoshi Iemoto, Kenji Ishido, Yasunori Saiki, Kenji Tamura, Takahiro Nakamura (2017) Importance of basic cultivation techniques to increase irrigated rice yields in Tanzania. Paddy and Water Environment 15 (4): 847-859. (URL) (PDF)
NOBUHITO SEKIYA, Jun Abe, Shigenori Morita (2016) Production and shedding of Erianthus arundinaceus roots revealed by ingrowth core method. Grassland Science 62 (1): 61-65. (URL: limited access)
Ayaka Uke, Naswiru Tibanyendela, Keiko T Natsuaki, NOBUHITO SEKIYA, Nobuaki Oizumi (2015) Characterization of Rice yellow mottle virus in north-eastern Tanzania. Journal of Agricultural Science, Tokyo University of Agriculture 60 (3): 116-125. (PDF)
NOBUHITO SEKIYA, Aristarick Cyril Shayo, Mathew Kaozya Jacob, Nobuaki Oizumi, Motonori Tomitaka, Hideki Araki (2015) Performance of four rice cultivars planted monthly over a full year under irrigated conditions in Tanzania. Rice Science 22 (2): 71-80. (PDF)
NOBUHITO SEKIYA, Motonori Tomitaka, Nobuaki Oizumi, Anne Niediwe Assenga, Mathew Kaozya Jacob (2015) Farmer-to-farmer extension facilitated by agricultural training institutions: a case of NERICA dissemination in Tanzania. Plant Production Science 18 (3): 398-406. (PDF)
NOBUHITO SEKIYA, Jun Abe, Fumitaka Shiotsu, Shigenori Morita (2015) Effects of partial harvesting on Napier grass: Reduced seasonal variability in feedstock supply and increased biomass yield. Plant Production Science 18 (1): 99-103. (PDF)
NOBUHITO SEKIYA, Taiichiro Hattori, Fumitaka Shiotsu, Jun Abe, Shigenori Morita (2014) Identifying potential field sites for production of cellulosic energy plants in Asia. International Journal of Agricultural and Biological Engineering 7: 59-67. (PDF)
NOBUHITO SEKIYA, Jun Abe, Fumitaka Shiotsu, Shigenori Morita (2014) Cultivation of Erianthus and Napier grass, at an abandoned mine in Lampung, Indonesia. American Journal of Plant Sciences 5 (11): 1711-1720. (PDF)
NOBUHITO SEKIYA, Hideki Araki (2013) Responses of root hydraulic properties and transpirational factors to a top soil drying in Cajanus cajan and Sesbania sesban. American Journal of Plant Sciences 4 (12C): 38-46. (PDF)
NOBUHITO SEKIYA, Fumitaka Shiotsu, Jun Abe and Shigenori Morita (2013) Distribution and quantity of root systems of field-grown Erianthus and Napier grass. American Journal of Plant Sciences 4 (12A): 16-22. (PDF)
NOBUHITO SEKIYA, Ryosuke Fukuju, Katsuya Yano (2013) Effects of seed P-enrichment and localized P-fertilizer application on soil-grown wheat. Plant Production Science 16: 198-201. (PDF)
NOBUHITO SEKIYA, Khatib Juma Khatib, Subira Maslah Makame, Motonori Tomitaka, Nobuaki Oizumi, Hideki Araki (2013) Performance of a number of NERICA cultivars in Zanzibar, Tanzania: yield, yield components and grain quality. Plant Production Science 16: 141-153. (PDF)
NOBUHITO SEKIYA, Hideki Araki, Katsuya Yano(2011)Applying hydraulic lift in an agroecosystem: Forage plants with shoots removed supply water to neighboring vegetable crops. Plant and Soil 341: 39-50. (URL) (PDF)
NOBUHITO SEKIYA, Katsuya Yano (2010) Seed P enrichment as an effective P supply to wheat. Plant and Soil 327: 347-354. (PDF)
NOBUHITO SEKIYA, Katsuya Yano (2008) Stomatal density of cowpea correlates with carbon isotope discrimination in different phosphorus, water and CO2 environments. New Phytologist 179: 799-807(Faculty of 1000 Biologyにて「Recommended、F1000 Factor 3.0」)(PDF)
Takashi Kume, NOBUHITO SEKIYA, Katsuya Yano (2006) Heterogeneity in spatial P distribution and the foraging capability by Zea mays: Effects of patch size and barrier to restrict root proliferation within patch. Annals of Botany 98: 1271-1277. (PDF)
NOBUHITO SEKIYA, Katsuya Yano (2006) Water-extraction by split-roots of sesbania and pigeon pea exposed to spatially heterogeneous distribution of soil water. Plant Production Science 9: 191-199. (PDF)
Katsuya Yano, NOBUHITO SEKIYA, Benjamin K. Samson, M.A. Mazid, Akira Yamauchi, Yasuhiro Kono, Len J. Wade. (2006) Hydrogen isotope composition of soil water above and below the hardpan in a rainfed lowland rice field. Field Crops Research 96: 477-480. (URL: limited access)
NOBUHITO SEKIYA, Katsuya Yano (2004) Do pigeon pea and sesbania supply groundwater to intercropped maize through hydraulic lift?-Hydrogen stable isotope investigation of xylem waters. Field Crops Research 86: 167-173. (URL: limited access)
NOBUHITO SEKIYA, Katsuya Yano (2002) Water acquisition from rainfall and groundwater by legume crops developing deep rooting systems determined with stable hydrogen isotope compositions of xylem waters. Field Crops Research 78: 133-139. (URL: limited access)
Tasuku Eigen, Mchuno Alfred Peter, Kaisei Ide, Edifor Raphael, Ami Shimomura, Asaka Murai, Nobuhito Sekiya and Kunio Watanabe (2024) Monitoring and modeling of nitrogen dynamics in paddy fields treated with organic fertilizers. 2024 ASA-CSSA-SSSA Annual Meetings, November 10-15, 2024, San Antonio, TX,
Tasuku Eigen, Peter Mchuno Alfred, Ami Shimomura, Nobuhito Sekiya, Kunio Watanabe (2022) Nitrogen balance in paddy fields applied with various amount of rice bran in winter. PAWEES 2022 International Conference, Novenber 17, 2022, Fukuoka, Japan
Kaisei ide, Tasuku Eigen, Nobuhito Sekiya, Kunio Watanabe (2022) Effect of soil temperature and rainfall before transplantation on nitrogen dynamics in paddy soils under different organic fertilizer levels.PAWEES 2022 International Conference, Novenber 17, 2022, Fukuoka, Japan
(2022) Spatial autoregressive analisys of available nitrogen in paddy soils at a farming community level. PAWEES 2022 International Conference, Novenber 17, 2022, Fukuoka, Japan
Nozomi Sato, Nobuhito Sekiya, Yoshihiro Iijima, Takeshi Tsuji, , Kunio Watanabe (2022) Estimation of rice lodging severity and soil available nitrogen in a paddy field based on UAS images. PAWEES 2022 International Conference, Novenber 17, 2022, Fukuoka, Japan
Mchuno Alfred Peter, Tasuku Eigen, Ami Shimomura, Beno Kiwale Anton, Kunio Watanabe, Nobuhito Sekiya (2021) Nitrogen dynamics in paddy fields under different rice bran levels. 10th Asian Crop Science Association Conference, Nagoya, 8-10 September, 2021.
Beno Kiwale Anton, Asaka Murai, Mchuno Alfred Peter, Nobuhito Sekiya (2021) Do new rice cultivars respond to chemical fertilizer better than old cultivars? 10th Asian Crop Science Association Conference, Nagoya, 8-10 September, 2021.
Toru Nakajima, Nobuaki Oizumi, Chihiro Kurosawa, Naswiru Tibanyendela, Motonori Tomitaka, Keiko Natsuaki, Nobuhito Sekiya (2020) Spatial econometric analysis of preventing Rice Yellow Mottle Virus in Tanzania. Australian Agricultural and Resource Economics Conference, Perth, 10-14 February 2020.
Miura S., Aoyama M., Ito E., Shichi K., Takata D., Masumori M., Sekiya N., Kobayashi N.I., Takano N., Kaneko S., Tanoi K., Nakanishi T.M. (2015) Towards prediction of redistribution of fallout radiocesium on forested area discharged from Fukushima Nuclear Power Plant. EGU2015-8989, GI1.4/SSS0.27
Tibanyendela N.T., Kurosawa C., Oizumi N., Sekiya N., Natsuaki K.T. (2012) Emergence of Rice yellow mottle virus in Tanzania.2012 FFTC-TUA International Seminar on Emerging Infectious Diseases of Food Crops in Asia. Tokyo University of Agriculture, Tokyo, Japan. 194.
Sekiya, N., Hattori, T., Shiotsu, F., Abe, J., Morita, S. (2012) Establishment of a raw material supply center for bioethanol production in Asia: the location identification and the plant species selection. Abstracts of the First Global Challenges University Workshop: Biofuels and Biorefineries. Swedish University of Agricultural Sciences, Uppsala, Sweden. 22-23.
Abe, J., Shiotsu, F., Sekiya, N., Hayashi, T. and Morita, S.(2012)Root system development of Erianthus arundinaceus and napier grass as raw material crops. Abstracts of the First Global Challenges University Workshop: Biofuels and Biorefineries. Swedish University of Agricultural Sciences, Uppsala, Sweden. 20-21.
Araki, H., Iwamoto, K., Sekiya, N., Yano, K. (2008) Elucidation of water redistribution through roots of deep rooting plants and its impact of growth of neighboring plants. 5th International Crop Science Congress & Exhibition, ICSC, Jeju. pp 211.
Sekiya, N., Araki, H., Yano, K. (2008) Using plant roots as an irrigation system. 5th International Crop Science Congress & Exhibition, ICSC, Jeju. pp 174.
Sekiya, N., Yano, K. (2005) Water movement between soil layers through a plant root system –Application of hydraulic lift in agricultural fields-. Proceedings of international workshop on research progress and current issue of unsaturated processes in vadose zone, Tsukuba, Japan. pp5-8. (招待講演)
Sekiya, N, Yano, K. (2003) Stomatal behavior is affected by phosphorus application as well as moisture conditions. Proceedings of 2nd International Symposium on Phosphorus Dynamics in the Soil-Plant Continuum, Perth, Australia. pp106-107.
Sekiya, N., Yano K. (2002) Hydraulic lift: Sprinkler-like function of deep-rooted plants. In: Proceedings of a Satellite Forum of International Forum 2002 on ‘The University-Architect of the New Century’, Sustainable Agricultural Systems in Asia. Nagoya University, Nagoya, Japan. pp35.
Sekiya, N., Yano, K. (2001) Does the deeper root really improve the plant water status? In JSRR ed., Proceedings of The 6th Symposium of The International Society of Root Research. JSRR, Nagoya, Japan. pp456-457. (ポスター賞受賞)
【翻訳 】
関谷信人.(訳)乾燥に対する根の適応.根の生態学,H. de Kroon,EJW Visser編,森田茂紀監訳,シュプリンガー・フェアラーク東京,東京.
Miura S., Aoyama M., Ito E., Shichi K., Takata D., Masumori M., Sekiya N., Kobayashi N.I., Takano N., Kaneko S., Tanoi K., Nakanishi T.M. (2015) Distribution of radiocesium fallout on forest area throughout Japan after decades from former atmospheric nuclear tests. Japan Geoscience Union Meeting 2015. May 26th, 2015. Makuhari, Chiba, Japan.
Hideki Araki, NOBUHITO SEKIYA, Aristarick C. Shayo, Mathew K. Jacob, Nobuaki Oizumi, Motonori Tomitaka (2014) A monthly transplanting trial of rice in Tanzania: Yield and yield components of NERICA1, Wahiwahi, IR64 and TXD306. 日本作物学会第237回講演会 60-61.
NOBUHITO SEKIYA, Khatib Juma Khatib, Subira Maslah Makame, Motonori Tomitaka, Nobuaki Oizumi and Hideki Araki (2012) Importance of rice grain quality in Tanzania: a case of sensory test in Zanzibar on cooked grain quality of NERICA and local cultivars. 日本水稲品質・食味研究会 第4回講演会 21-22.
Tibanyendela, N., Kurosawa, C., Oizumi, N., Sekiya, N., Natsuaki, K.T. (2012) Occurrence and characterization of Rice yellow mottle virus in Tanzania. 平成24年度日本植物病理学会大会講演要旨予稿集 316.
Mgonja, E.M., Goto, A., Sekiya, N., Fujiie, A., Natsuaki, K. (2010) Occurrence and possible vectors of rice yellow mottle virus in Tanzania and Uganda. 熱帯農業研究(3)37-38.
Tsuji, W., Araki, H., Sekiya, N. Kashiwagi, J., Krishnamurthy, L., Muranaka, S. (2008) Behavior of stomatal conductance and water use of a defoliated sorghum plant under water deficit conditions. 日本作物学会第225回講演会 198-199.