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晚造水稻生长期内田间的N2O排放量与施肥类型和灌溉直接相关．设计4种肥料类型．其N2O的排放通量是化肥：（化肥＋猪粪）：（化肥＋蘑菇肥）：猪粪＝10：2：1：0，单施化肥小区在整个晚稻生长期内N2O持续排放；稻田淹水时，N2O排放量很低干水时出现N2O的排放高峰，施肥后稻田淹水能迅速降低N2O的排放量．
The N2O emission from the field during late growth rice stage is directly related to the type of fertilizer application and irrigation. Design 4 fertilizer types. The N2O emission flux is: (fertilizer + pig manure): (fertilizer + mushroom fertilizer): pig manure = 10: 2: 1: 0, Water, N2O emission peak appears when N2O emission is very low, and N2O emission can be rapidly reduced after flooding paddy field.