Crop management practices have a significant impact on greenhouse gas (GHG) emission rates, where methane (CH4) and nitrous oxide (N2O) emissions from rice paddy fields are in trade-off association. A field study for two consecutive years (2013 and 2014) was conducted to continuously measure CH4 and N2O emissions from rice paddies under various agricultural management schedules like water regimes (irrigated and rainfed), transplanting dates and nutritional amendments (synthetic fertilizer with N as ammonium sulphate, P and K according to recommended dose, and vermicompost).

Emission of nitrous oxide (N2O) from wheat field under various management practices was measured over two years. The experimental design consisted of two winter wheat (Triticum austivum L.) varieties with three nutritional treatments and two dates of sowing. The results revealed that soil moisture and soil temperature at different depths are the key parameters influencing N2O emission. A positive increase of N2O flux was noticed with increasing soil moisture along with decreasing soil temperature at specific wheat phenophases.