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| 追肥时间对小麦拔节-成熟期氧化亚氮排放的影响 | |
| 引用本文： | 马二登,马静,徐华,蔡祖聪,八木一行.追肥时间对小麦拔节-成熟期氧化亚氮排放的影响[J].土壤学报,2011,48(5):971-978. |
| 作者姓名： | 马二登 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;云南省烟草农业科学研究院,云南玉溪653100 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： | 中科院知识创新重要方向项目群项目、国家自然科学基金项目 |
| 摘 要： | 2007～2008年采用3种追肥时间(雨前追肥、雨时追肥和雨后追肥)进行田间试验,观测小麦拔节-成熟期N2O排放,以探讨追肥时间对麦季N2O排放的影响。结果表明,与雨前追肥和雨时追肥相比,雨后追肥小麦拔节-成熟期N2O排放量分别减少37%～67%和22%～46%。各处理小麦产量无显著差异(p>0.05)。土壤水分含量是影响小麦拔节-成熟期N2O排放的关键因素。雨后趁墒追肥能显著减少小麦拔节-成熟期N2O排放且不影响小麦产量,是较为合理的追肥方式。 |
| 关 键 词： | 追肥时间 土壤水分 N2O排放 小麦产量 |
| 收稿时间： | 1/13/2010 5:20:53 PM |
| 修稿时间： | 5/4/2010 3:21:38 PM |
Nitrous oxide emissions from wheat field at wheat jointing-maturing stage as affected by timing of topdressing |
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| ma er deng.Nitrous oxide emissions from wheat field at wheat jointing-maturing stage as affected by timing of topdressing[J].Acta Pedologica Sinica,2011,48(5):971-978. | |
| Authors: | ma er deng |
| Institution: | Ma Erdeng1,2,4 Ma Jing1 Xu Hua1 Cai Zucong1 Yagi Kazuyuki3(1 State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China)(2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China) (3 National Institute of Agro-Environmental Sciences,Tsukuba 305,Japan)(4 Yunnan Academy of Tobacco Agricultural Sciences,Yuxi,Yunnan 653100,China) |
| Abstract: | To study effect of timing of topdressing on N2O emission from wheat fields during the period from the jointing stage till the maturing stage of wheat,a field experiment was conducted to have three topdressing schedules(topdressing before rain,topdressing during rain and topdressing after rain) in jointing-maturing stage of wheat from 2007 to 2008.Results show that N2O emission was 37%~67% and 22%~46% less in fields topdressed after rain,than in fields topdressed before rain and during rain,respectively.No s... |
| Keywords: | Topdressing time Soil water content N2O emission Wheat yield |
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