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| 稻季施肥管理措施对后续麦季N2O排放的影响 | |
| 引用本文： | 马静,徐华,蔡祖聪,八木一行.稻季施肥管理措施对后续麦季N2O排放的影响[J].土壤,2006,38(6):687-691. |
| 作者姓名： | 马静 徐华 蔡祖聪 八木一行 |
| 作者单位： | 1. 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),南京,210008;中国科学院研究生院,北京,100049 2. 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),南京,210008 3. 日本国立农业环境技术研究所,日本筑波,305 |
| 基金项目： | 国家自然科学基金;中国科学院全国优秀博士学位论文专项基金 |
| 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)。 |
| 关 键 词： | N2O排放 秸杆还田 氮肥施用 冬小麦 |
Effect of Fertilizer Application in Rice-Growing Season on N2O Emissions from Following Wheat-Growing Season |
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| MA Jing,XU Hu,CAI Zu-cong and YAGI Kazuyuki.Effect of Fertilizer Application in Rice-Growing Season on N2O Emissions from Following Wheat-Growing Season[J].Soils,2006,38(6):687-691. | |
| Authors: | MA Jing XU Hu CAI Zu-cong and YAGI Kazuyuki |
| Institution: | State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China;Graduate Shool of the Chinese Academy of Sciences, Beijing 100049, China,State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China,State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China and National Institute of Agro-Environmental Sciences, Tsukuba 305, Japan |
| Abstract: | 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). |
| Keywords: | N2O emission Wheat straw Nitrogen fertilizer Winter wheat |
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