Changes of crop yield and soil fertility under long-term fertilization and nutrients-recycling and reutilization on a black soil:Ⅳ.Soil organic carbon and its fractions
ZHAO Lijuan1,2,3;WHAN Xiaozeng1,2;WANG Shouyu1,2;LIU Hongxiang1,2;LI Haibo1,2,3;MIAO Shujie1,2,3;ANG Feng1,2,3
Chinese Journal of Applied Ecology
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2006, (05): 817
-821
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