Legume crop rotation suppressed nitrifying microbial community in a sugarcane cropping soil.

ABSTRACT: Nitrifying microorganisms play an important role in nitrogen (N) cycling in agricultural soils as nitrification leads to accumulation of nitrate (NO3-) that is readily lost through leaching and denitrification, particularly in high rainfall regions. Legume crop rotation in sugarcane farming systems can suppress soil pathogens and improve soil health, but its effects on soil nitrifying microorganisms are not well understood. Using shotgun metagenomic sequencing, we investigated the impact of two legume break crops, peanut (Arachis hypogaea) and soybean (Glycine max), on the nitrifying communities in a sugarcane cropping soil. Cropping with either legume substantially increased abundances of soil bacteria and archaea and altered the microbial community composition, but did not significantly

SUBMITTER: Paungfoo-Lonhienne C 

PROVIDER: S-EPMC5711877 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature