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Position: Home > Articles > Effect of Fertilizer Application in Rice-Growing Season on N_2O Emissions from Following Wheat-Growing Season Soils 2006,38 (6) 687-691

稻季施肥管理措施对后续麦季N_2O排放的影响

作  者：
马静;徐华;蔡祖聪;八木一行
单  位：
土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所);日本国立农业环境技术研究所
关键词：
N2O排放;秸杆还田;氮肥施用;冬小麦
摘  要：
2003─2004年选用江苏省宜兴市稻-麦轮作试验田,研究了水稻生长季秸杆(0和3.75×103kg/hm2两个水平)和N肥施用(N0、200和270kg/hm23个水平)对后续麦季N2O排放的影响。结果表明:稻季秸杆施用显著减少了后续麦季N2O的排放,这些减少量主要体现在小麦播种-返青期,方差分析达显著水平(P<0.05)。稻季施用N肥,后续麦季N2O排放减少,但N200和270kg/hm2N肥施用水平的处理间无显著差异。麦季土壤水分情况与N2O排放通量存在显著正相关(P<0.05)。
译  名：
Effect of Fertilizer Application in Rice-Growing Season on N_2O Emissions from Following Wheat-Growing Season
作  者：
MA Jing1,3, XU Hua1, CAI Zu-cong1, YAGI Kazuyuki2 ( 1 State Key Laboratory of Soil and Sustainable Agriculture (Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China; 2 National Institute of Agro-Environmental Sciences, Tsukuba 305, Japan; 3 Graduate Shool of the Chinese Academy of Sciences, Beijing 100049, China)
关键词：
N2O emission, Wheat straw, Nitrogen fertilizer, Winter wheat
摘  要：
A field experiment was conducted in rice-wheat rotation system to study effect of application of wheat straw and nitrogen fertilizer in rice-growing season on N2O emission from following wheat-growing season at Yixing of Jiangsu province in 2003—2004. Two levels of wheat straw application (0 and 3.75 × 103 kg/hm2) and three levels of nitrogen fertilizer application (N 0, 200 and 270 kg/hm2) were adopted in experiment. Results from variance analyses indicated that application of wheat straw in rice-growing season significantly reduced N2O emission from following wheat-growing season, which happened mainly between wheat-sowing and returning-green periods (P<0.05). Application of nitrogen fertilizer in rice-growing season significantly decreased N2O emission from following wheat-growing season, while no significant differences in N2O emissions were observed between N 200 kg/hm2 treatment and N 270 kg/hm2 treatment. Significant positive correlation between N2O flux and soil water content was found during wheat-growing period (P<0.05).

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