Variation of N cycle guilds of the rye rhizosphere microbiome is driven by crop productivity along a tillage erosion catena.

ABSTRACT: Tillage erosion poses threats to crop yields. A transition towards more sustainable agricultural practices may be advanced by harnessing ecosystem services provided by plant microbiomes. However, targeting microbiomes at the agroecosystem scale necessitates bridging the gap to microscale structures of microbiomes. We hypothesized that differences of microbial nitrogen (N) cycle guilds in the rhizosphere of rye align with a soil catena that has been formed by tillage erosion. The rhizosphere was sampled at four sites, which captured a complete tillage erosion gradient from extremely eroded to depositional soils. The gene abundances characteristic of microbial N cycle guilds were assessed via metagenomics. The eroded sites showed the lowest plant productivity and soil mineral N availability,

SUBMITTER: Lewin S 

PROVIDER: S-EPMC11931286 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature