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Effects of nitrogen fertilization on upland rice based on pot experiments

文献类型：期刊论文

作者Wang, Yuying1,2; Zhu, Bo1; Shi, Yan3; Hu, Chungsheng2
刊名COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
出版日期2008-06-01
卷号39期号:11-12页码:1733-1749
关键词15 N-labeled technique crop yield nitrogen use efficiency photosynthesis upland rice
ISSN号0010-3624
通讯作者Zhu, Bo
英文摘要Limited information is available regarding the utilization and loss of fertilizer nitrogen (N) applied to intensively managed upland rice. Effects of N fertilization on upland rice were conducted as NO (no N applied), N225 (225 kg N center dot ha(-1)), N300 (300 kg N center dot ha(-1)), and N375 (375 kg N center dot ha(-1)) in pot experiments. N-15-labeled techniques were used in basal and topdressing N fertilizations. Results showed with the increase of N quantity applied, tiller, panicle numbers per pot, and spikelet number per panicle increased significantly (P < 0.05). Chlorophyll b content of N225 and N300 were significantly higher than N0 (P < 0.05), and net photosynthetic rate (Pn) of N300 increased significantly compared with N0 and N225. Under basal fertilization, N use efficiency (NUE) of root, stem, leaf, and grain in N300 was the highest. The NUE and loss rate ranged from 23.3% to 30.3% and 62.4% to 73.8%, respectively, under basal fertilization. They varied from 16.5% to 27.5% and 70.7% to 80.4%, respectively, under topdressing fertilization. The highest NUE was observed in N300 under basal fertilization. As increased quantities of N were applied, Pn and biological characteristics improved, thus crop yield of upland rice increased. Grain yield of N300 and N375 were significantly higher than that of N0 and N225 (P < 0.01); however, there was no significant difference between them. Therefore, N fertilization with medium applied quantity under basal fertilization will facilitate growing, photosynthesis, and grain yield increase of upland rice.
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]Agronomy ; Plant Sciences ; Chemistry, Analytical ; Soil Science
研究领域[WOS]Agriculture ; Plant Sciences ; Chemistry
关键词[WOS]USE EFFICIENCY ; LOWLAND RICE ; N-FERTILIZATION ; SOIL ; ABUNDANCE ; GROWTH ; YIELD ; LEAF ; PHOTOSYNTHESIS ; OPPORTUNITIES
收录类别SCI
语种英语
WOS记录号WOS:000256968400011
源URL[http://ir.imde.ac.cn/handle/131551/9631]  
专题成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）
成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China
2.Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Shijiazhuang, Peoples R China
3.Qingdao Agr Univ, Coll Plant Sci & Technol, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Yuying,Zhu, Bo,Shi, Yan,et al. Effects of nitrogen fertilization on upland rice based on pot experiments[J]. COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS,2008,39(11-12):1733-1749.
APA Wang, Yuying,Zhu, Bo,Shi, Yan,&Hu, Chungsheng.(2008).Effects of nitrogen fertilization on upland rice based on pot experiments.COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS,39(11-12),1733-1749.
MLA Wang, Yuying,et al."Effects of nitrogen fertilization on upland rice based on pot experiments".COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS 39.11-12(2008):1733-1749.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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