Nitrogen fertilization rates mediate rhizosphere soil carbon emissions of continuous peanut monoculture by altering cellulose-specific microbess.

ABSTRACT:

Introduction

Crops influence both soil microbial communities and soil organic carbon (SOC) cycling through rhizosphere processes, yet their responses to nitrogen (N) fertilization have not been well investigated under continuous monoculture.

Methods

In this study, rhizosphere soil microbial communities from a 5-year continuous mono-cropped peanut land were examined using Illumina HighSeq sequencing, with an N fertilization gradient that included 0 (N0), 60 (N60), 120 (N120) and 180 (N180) kg hm^-2. Soil respiration rate (R _s) and its temperature sensitivity (Q ₁₀) were determined, with soil carbon-acquiring enzyme activities assayed.

Results and discussion

The obtained results showed that with N fertilization, soil mineral

SUBMITTER: Wu Z 

PROVIDER: S-EPMC10021708 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature