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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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