2011A new technology of deep placement of slow release nitrogen fertilizers for promotion of soybean growth and seed yield, Kaushal Tewari, Yoshifumi Nagumo, Yoshihiko Takahashi, Kuni Sueyoshi, Norikuni Ohtake, Takuji Ohyama, NOVA publishers (2011)カバーSoybeans: Cultivation, Uses and Nutrition, Takuji Ohyama et al. (Ed. Jason E. Maxewell), Nova Science Publihers, Inc.(2011)カバーIn Soybean, Physiology and Biochemistry. Edited by Hany A. El-Shemy, 333-364 Takuji OHYAMA, Hiroyuki FUJIKAKE, Hiroyuki YASHIMA, Sayuri TANABATA, Shinji ISHIKAWA, Takashi SATO, Toshikazu NISHIWAKI, Norikuni OHTAKE, Kuni SUEYOSHI, Satomi ISHII and Shu FUJIMAKI, InTech, Rijeka, Croatia (2011)Open access URL
2010Nitrogen Assimilation in Plants, Takuji OHYAMA and Kuni Sueyoshi, Research Signpost, Kerala, India (2010)カバー
2009Nitrogen Fixation and Metabolism in Soybean Plants, Takuji OHYAMA, Norikuni OHTAKE, Kuni SUEYOSHI, Kaushal TEWARI, Yoshihiko TAKAHASHI, Sayuri ITO, Toshikazu NISHIWAKI, Yoshifumi NAGUMO, Satomi ISHII, Takashi SATO, Nova Science Publishers, Inc. New York (2009)カバー
2008Nitrogen Fixation Research Progress, Nitrogen Fixation and Metabolism in Soybean Plants, G.N. Couto ed. NOVA Scientific Publisher, 2008“Effect of nitrate on nodulation and nitrogen fixation of soybean.