PROBLEMS AND SUGGESTION ON RADIOISOTOPE TRACING EXPERIMENT
HAN Ai-liang YE Qing-fu (Institute of Nuclear-Agricultural Sciences,Key Laboratory of Nuclear-Agricultural Science,Ministry of Agriculture,Zhejiang University,Hangzhou,Zhejiang 310029)
J4 . 2007, (06): 646 -651 .  DOI: 10.11869/hnxb.2007.06.0646