Effects of Water and Fertilizer Management Practices on Methane Emissions from Paddy Soils: Synthesis and Perspective.

ABSTRACT: Water and fertilizer management practices are considered to have great influence on soil methane (CH₄) emissions from paddy fields. However, few studies have conducted a quantitative analysis of the effects of these management practices. Here, we selected 156 observations of water management from 34 articles and 288 observations of fertilizer management from 37 articles and conducted a global meta-analysis of the effects of water and fertilizer management practices on soil CH₄ emissions in paddy fields. In general, compared with traditional irrigation (long-term flooding irrigation), water-saving irrigation significantly decreased soil CH₄ emissions but increased rice yield. Among the different practices, intermittent irrigation had the fewest reductions in

SUBMITTER: Gu X 

PROVIDER: S-EPMC9223590 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature