Effect of tillage and fertilization on bacterial community structure in different depth of black soil
耕作和施肥对不同深度黑土中细菌群落结构的影响

Objective] To analyze the impact of tillage and fertilization on bacterial community structure under different depth in black soil.Methods] We used denaturing gradient gel electrophoresis (DGGE) profile analysis of bacterial community based on the 16S rRNA gene combining soil physico-chemical characteristics. Results] DGGE profiles showed that tillage and fertilization influenced more on bacterial community structrue in the surface soil than the subsurface and deep soil,and the divergence distance betwee...