田晓兰,李念奎,张付新,马利厂,刘国清.山东省嘉祥县20年来土壤养分水平变化[J].土壤,2005,37(3):341-344. TIAN Xiao-lan, LI Nian-kui, ZHANG Fu-xin, MA Li-chang, LIU Guo-qing. HORIZONTAL VARIATION OF SOIL NUTRIENTS IN JIAXIANG COUNTY SHANDONG PROVINCE IN THE PAST TWENTY YEARS[J]. Soils,2005,37(3):341-344
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