Nitrous oxide flux from irrigated rice fields in West Java

abonos abonos nitrogenados ammonia ammoniac arroz azote cycle de l'azote cycling denitrification engrais fertilizers flooding gestion des eaux inondation irrigation java nitrate nitrates nitratos nitrification nitrogen nitrogen cycle nitrogen fertilizers oryza sativa paddy soil repiquage rice riego riz soil types tipos de suelos transplanting trasplante type de sol urea uree water management