LIU Gang1, HAN Yong1, ZHU Jianguo1, M Okada3, H Nakamura3, M Yoshimoto2
1. Institute of Soil Science, Chinese Academy of Science, Nanjing 210008; 2. National Institute of Agro-Environmental Sciences, 3-1-1 Kannondai, Tsukuba, Japan 305-8604; 3. Department of Biology and Environmental Sciences, Tohoku National Agricultural Experiment Station, Akahira, Shimokuriyagawa, Morioka, Japan 020-0198
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