Effects of Atmosphere Deposition on Nitrogen Content of Two Poaceae Plants  

湿沉降氮对2种禾本科植物中氮含量的影响(英文)

作　　者：林菲[1] 史锟[1] 

机构地区：[1]大连交通大学环境与化学工程学院,辽宁大连116028

出　　处：《Agricultural Science & Technology》2009年第3期92-96,共5页农业科学与技术（英文版）

基　　金：Supported by "948 Project" of Ministry of Agriculture, PRC(202003-Z53)~~

摘　　要：[Objective] It was to study nitrogen use efficiency under the condition of deposition of perennial ryegrass (Lolium perenne L.) and barley (Hordeum vulgare L.), further revealing the difference in gene variation.[Method] A pot experiment was conducted under 3 treatments of rainwater, ammonium-N (aN) and nitrate-N (nN).[Result] In the treatments of aN and nN, the biomass and N contents in plants were obviously higher than those in rainwater treatment, while the largest biomass(36.116 g) was observed in nN treatment. The absorption to aN was best to perennial ryegrass while nN to barley. According to the differential analysis of N content, treatments of both aN and nN was nitrogen superfluous, which led to release excessive N to the atmosphere, and the rainwater treatment and the control were N deficient, the largest N absorption from atmosphere was 0.698 g in rainwater treatment.[Conclusion] Average N use efficiency contributed by atmosphere N deposition ranged from 1.321%-6.116%, while the control of barley had the highest of 6.116%.[Objective] It was to study nitrogen use efficiency under the condition of deposition of perennial ryegrass （Lolium perenne L.） and barley （Hordeum vulgare L.）, further revealing the difference in gene variation.[Method] A pot experiment was conducted under 3 treatments of rainwater, ammonium-N （aN） and nitrate-N （nN）.[Result] In the treatments of aN and nN, the biomass and N contents in plants were obviously higher than those in rainwater treatment, while the largest biomass（36.116 g） was observed in nN treatment. The absorption to aN was best to perennial ryegrass while nN to barley. According to the differential analysis of N content, treatments of both aN and nN was nitrogen superfluous, which led to release excessive N to the atmosphere, and the rainwater treatment and the control were N deficient, the largest N absorption from atmosphere was 0.698 g in rainwater treatment.[Conclusion] Average N use efficiency contributed by atmosphere N deposition ranged from 1.321%-6.116%, while the control of barley had the highest of 6.116%.

关 键 词：Perennial ryegrass BARLEY N deposition and absorption 

分 类 号：S184[农业科学—农业基础科学]