【摘要】 以山东省桓台县为试验地点,分析在高产条件下,不同秸秆还田模式和氮肥施用量对农田N2O排放的影响。试验结果表明,氮肥施用量与秸秆还田模式都是影响土壤N2O排放的重要因素;小麦秸秆还田可以大大降低土壤N2O的排放,施用有机粪肥是影响N2O排放的另一重要因素。更多还原

【Abstract】 Huantai county is famous for its crop straw return and high fertilizer input. The difference of straw return and nitrogen application is focused on in this research. The results indicate that different straw return and nitrogen application are two important factors to effect the N₂O emission of soil. Most important of all, the N₂O emission of soil can be decreased by wheat-straw-return but it can be hasten by the application of manure.更多还原