C and N accumulations in soil aggregates determine nitrous oxide emissions from cover crop treated rice paddy soils during fallow season

Contrasting effects ofEDTAapplications on the fluxes of methane and nitrous oxide emissions from straw‐treated rice paddy soils

“…A higher C/N ratio possibly reduced the rate of N mineralisation, and that in turn was responsible for lower NO 3 ‐N content in soil. Under anaerobic conditions like that of submerged rice paddy soils, N 2 O was produced through the reduction of NO 3 ‐N in soil . Therefore, the reduced NO 3 ‐N content might be attributed to the lower N 2 O flux from straw treated soils.…”

Effects of Biochar on the Net Greenhouse Gas Emissions under Continuous Flooding and Water-Saving Irrigation Conditions in Paddy Soils

“…A closed-chamber method [31][32][33] was used to estimate the CO 2 , CH 4 , and N 2 O emission fluxes. Rounded PVC chambers (50 cm in diameter and 3 cm in height) were placed permanently under the pots as pedestals.…”

Soil N2O emissions from long-term agroecosystems: Interactive effects of rainfall seasonality and crop rotation in the Brazilian Cerrado

“…In this way, since most studies on the combined effects of the cited practices on soil N 2 O emissions were carried out under other soil and climatic conditions, mainly in humid climate regions and for only one growing season (Chen et al, 2008), little is known about these interactive effects under rainfed conditions in the Brazilian Cerrado. Additionally, the monitoring of a complete crop rotation cycle is also important to determine the quantitative response of each management systems in terms of cumulative N 2 O emission per grain produced as well as the partial global warming potential (pGWP) (Pramanik et al, 2014;Bayer et al, 2015). According to the latest Brazilian Panel on Climate Change (MCTI, 2014), the available N 2 O emission data are still insufficient to allow a low-uncertainty determination of emissions from agricultural systems, due to the wide diversity of environments in Brazil.…”