Meta-analysis on how manure application changes soil organic carbon storage.

ABSTRACT: Manure application to agricultural soils is widely considered as a source of nutrients and a method of maintaining levels of soil organic carbon (SOC) to mitigate climate change. At present, it is still unclear which factors are responsible for the SOC stock dynamics. Therefore, we analyzed the relationship between SOC stock changes and site characteristics, soil properties, experiment characteristics and manure characteristics. Overall, we included 101 studies with a total of 592 treatments. On average, the application of manure on agricultural soils increased SOC stocks by 35.4%, corresponding to 10.7 Mg ha^-1. Manure applications in conventional tillage systems led to higher SOC stocks (+ 2.2 Mg ha^-1) than applications under reduced tillage. Soil organic carbon incr

SUBMITTER: Gross A 

PROVIDER: S-EPMC7943820 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature