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Fumiaki Takakai, Masahiro Kobayashi, Takashi Sato, Kentaro Yasuda and Yoshihiro Kaneta
The effects of conversion from staple rice to forage rice on carbon and greenhouse gas (GHG) balances in a paddy field were evaluated. A staple rice plot without the application of livestock manure compost (LMC, S − M plot) and forage rice plots wi...
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Fumiaki Takakai, Seiya Hirano, Yuka Harakawa, Keiko Hatakeyama, Kentaro Yasuda, Takashi Sato, Kazuhiko Kimura and Yoshihiro Kaneta
A field experiment was conducted to evaluate the fate of nitrogen (N) derived from fertilizer (fertilizer-derived N) applied to a paddy field after rice harvesting to promote rice straw decomposition during the fallow season, and to determine its effect ...
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Fumiaki Takakai, Shinpei Nakagawa, Kensuke Sato, Kazuhiro Kon, Takashi Sato and Yoshihiro Kaneta
Methane (CH4) and nitrous oxide (N2O) fluxes were measured from paddy?upland rotation (three years for soybean and three years for rice) with different soil fertility due to preceding compost application for four years (i.e., 3 kg FW m-2 year-1 of immatu...
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Fumiaki Takakai, Takemi Kikuchi, Tomomi Sato, Masato Takeda, Kensuke Sato, Shinpei Nakagawa, Kazuhiro Kon, Takashi Sato and Yoshihiro Kaneta
In northern Japan, declines in soil nitrogen fertility have occurred in paddy?upland rotation systems with soybean cultivation. A six-year lysimeter experiment was conducted to evaluate the nitrogen budget in paddy?upland rotation (three-year for upland ...
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Fumiaki Takakai, Jota Ichikawa, Masato Ogawa, Saki Ogaya, Kentaro Yasuda, Yukiya Kobayashi, Takashi Sato, Yoshihiro Kaneta and Ken-ichiro Nagahama
To elucidate the effects of rice straw removal and rice straw-based bio-ethanol production residue application on rice growth and methane (CH4) emission from a paddy field, a lysimeter experiment with three treatments (application of rice straw after har...
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