| 氮肥施用方式对油菜生长季氧化亚氮排放的影响 |
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| 引用本文： | 岳芳,周 炜,王子臣,陈留根,朱普平,盛 婧,郑建初.氮肥施用方式对油菜生长季氧化亚氮排放的影响[J].农业环境科学学报,2013,32(8):1690-1696. |
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| 作者姓名： | 岳芳 周 炜 王子臣 陈留根 朱普平 盛 婧 郑建初 |
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| 作者单位： | 1. 江苏省农业科学院农业资源与环境研究所,南京210014;江苏省农业科学院循环农业研究中心,南京210014
2. 江苏省农业科学院循环农业研究中心,南京,210014 |
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| 基金项目： | 国家科技支撑计划课题，公益性行业(农业)科研专项经费课题 |
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| 摘 要： | 氮肥深施(条施、穴施)有利于提高肥料利用率和作物产量,但其对农田氧化亚氮排放的影响尚不明确.以不施氮肥为对照,研究了氮肥撒施、条施和穴施对水稻-油菜轮作系统油菜生长季氧化亚氮排放、氮肥利用率和产量的影响.结果表明:氮肥的施用改变了油菜生长期间N2O排放通量的季节变化规律,不施氮对照除在油菜移栽后第10 d N2O排放通量较大外,其余时间排放均较为微弱.氮肥撒施、氮肥条施和氮肥穴施均在油菜移栽后第10d和第117d出现N2O排放小高峰,排放最大高峰出现在移栽后第100 d.氮肥深施显著提高油菜生长季N2O总排放量、氮肥利用率和产量.与氮肥撒施相比,氮肥条施和氮肥穴施分别增加N2O总排放量37.2％和19.3％,提高氮肥利用率72.3％和59.3％,增产28.8％和25.8％,而单位产量N2O排放量与氮肥撒施无显著差异；氮肥条施的单位产量N2O排放量显著低于氮肥穴施.研究表明,在获得相同产量的前提下氮肥撒施并无减排N2O的优势,水稻-油菜轮作系统油菜生长过程中在氮肥深施时采用条施有利于N2O减排.
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| 关 键 词： | N2O排放 施氮方式 氮肥利用率 产量 单位产量N2O排放 油菜 |
Effects of Nitrogen Fertilizer Application Modes on Nitrous Oxide Emissions During Growing Season of Oilseed Rape (Brassica napus) |
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| ZHANG Yue-fang,ZHOU Wei,WANG Zi-chen,CHEN Liu-gen,ZHU Pu-ping,SHENG Jing and ZHENG Jian-chu.Effects of Nitrogen Fertilizer Application Modes on Nitrous Oxide Emissions During Growing Season of Oilseed Rape (Brassica napus)[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2013,32(8):1690-1696. |
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| Authors: | ZHANG Yue-fang ZHOU Wei WANG Zi-chen CHEN Liu-gen ZHU Pu-ping SHENG Jing and ZHENG Jian-chu |
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| Institution: | Institute of Agricultural Resources and Environments, Jiangsu Academy of Agricultural Sciences;Circular Agriculture Research Center, Jiangsu Academy of Agricultural Sciences;Institute of Agricultural Resources and Environments, Jiangsu Academy of Agricultural Sciences;Circular Agriculture Research Center, Jiangsu Academy of Agricultural Sciences;Institute of Agricultural Resources and Environments, Jiangsu Academy of Agricultural Sciences;Circular Agriculture Research Center, Jiangsu Academy of Agricultural Sciences;Institute of Agricultural Resources and Environments, Jiangsu Academy of Agricultural Sciences;Circular Agriculture Research Center, Jiangsu Academy of Agricultural Sciences;Institute of Agricultural Resources and Environments, Jiangsu Academy of Agricultural Sciences;Circular Agriculture Research Center, Jiangsu Academy of Agricultural Sciences;Institute of Agricultural Resources and Environments, Jiangsu Academy of Agricultural Sciences;Circular Agriculture Research Center, Jiangsu Academy of Agricultural Sciences;Circular Agriculture Research Center, Jiangsu Academy of Agricultural Sciences |
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| Abstract: | |
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| Keywords: | N2O emission nitrogen application modes nitrogen use efficiency grain yield specific N2O emission oilseed rape(Brassica napus) |
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