Open AccessSoil chemical properties affecting GHG emission from paddy rice field due to water regime and organic matter amendment
Author(s) -
Miranti Ariani,
Ali Pramono,
F. Purnariyanto,
Eko Haryono
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/423/1/012066
Subject(s) - amendment , greenhouse gas , organic matter , paddy field , inceptisol , soil water , environmental science , limiting , environmental engineering , agronomy , environmental chemistry , soil science , chemistry , ecology , mechanical engineering , organic chemistry , political science , law , biology , engineering
Paddy rice field is the main contributor of greenhouse gas (GHG) (CH 4 and N 2 O) emissions in Indonesia. The actions to mitigate these emissions and maintain yield have being a serious concern. This study aims to investigate the emission of CH 4 and N 2 O and determine the limiting factors of CH 4 and N 2 O emission due to water regime and organic matter (OM) amendment in inceptisol soil. Treatments consist of two factors, the first factor was water regime, e.g., 1) continuously flooded, and 2) Alternate wetting-drying (AWD). The second factor was organic matter amendment, e.g., 1) with OM 3 t ha-1, and 2) without OM. The results showed that the addition of organic matter to the soils alongside managing its water regime with AWD resulted in low daily CH 4 emissions compare to continuous flooded. No significant difference (p<0.05) in daily N 2 O emission between AWD and continuous flooded. The dynamic of C-org, Eh, Fe 2 O 3 , MnO 2 in the soil due to water regime were affected daily CH 4 emissions, while pH, NO 3 and NH 4 were affected daily N 2 O emissions. Results of this study can be used for further research and development of a model on CH 4 emission from rice fields to determine feasible soil management in GHG mitigation.