Responses of bacterial communities in arable soils in a rice-wheat cropping system to different fertilizer regimes and sampling times.

ABSTRACT: Soil physicochemical properties, soil microbial biomass and bacterial community structures in a rice-wheat cropping system subjected to different fertilizer regimes were investigated in two seasons (June and October). All fertilizer regimes increased the soil microbial biomass carbon and nitrogen. Both fertilizer regime and time had a significant effect on soil physicochemical properties and bacterial community structure. The combined application of inorganic fertilizer and manure organic-inorganic fertilizer significantly enhanced the bacterial diversity in both seasons. The bacterial communities across all samples were dominated by Proteobacteria, Acidobacteria and Chloroflexi at the phylum level. Permutational multivariate analysis confirmed that both fertilizer treatment and season wer

SUBMITTER: Zhao J 

PROVIDER: S-EPMC3896389 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature