A CASE STUDY ON BASIC FARMLAND DEMONSTRATION AREA IN HAILUN CITY: CONSTRUCTION MODELS OF BASIC BLACK FARMLANDS IN COLD ZONE
JIN Qu-huo, WU Ke-ning, WANG Jin-man, TANG Huai-zhi, LIU Yuan-qiu, ZOU Yi-min, LIAO Chen-hua
Resources & Industries . 2010, (4): 85 -90 . 

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