Effects of Application of Various forms of Nitrogen on the Growth of Soybean Nodules and Roots Related to the Carbon and Nitrogen Metabolism

*Takuji Ohyama, Sayuri Tanabata, Norikuni Ohtake, Takashi Sato, Kuni Sueyoshi, Yoshihiko Takahashi, Shinji Ishikawa, Yuki Ono, Natsumi Yamashita and Akinori Saito*
