Effects of Different Nitrogen Application Rates on ^(15)N Absorption of Rice  

不同氮肥水平对水稻15N吸收的影响（英文）

作　　者：李建辉[1,2] 徐宝安[3] 苍真名 王秋菊[4] 焦峰[1] 翟瑞常[1] 

机构地区：[1]黑龙江八一农垦大学,黑龙江大庆163319 [2]黑龙江省曙光农场,黑龙江佳木斯154451 [3]黑龙江省北大荒米业集团有限公司,黑龙江哈尔滨150090 [4]黑龙江省农业科学院土壤肥料与环境资源研究所,黑龙江哈尔滨150086

出　　处：《Agricultural Science & Technology》2015年第10期2269-2272,共4页农业科学与技术（英文版）

基　　金：Supported by Major Program of Scientific and Technological Bureau of Heilongjiang Province(GA06C101);Heilongjiang Postdoctoral Fund(LBH-Z13189);Heilongjiang Scientific and Technological Innovation Program(CX2012Z13)~~

摘　　要：In field experiments, the effect of nitrogen application on 15N absorption and distribution of Longjing 31 and Kongyu 131 rice varieties was studied by ^15N isotopic trace technique. The results showed that nitrogen absorbed by rice plant is the most in the early plant growth, and ^15N accumulation of Longjing 31 grains are higher than Kongyu 131, but stem organ is the opposite; the realtocation and trans- fer efficiency of nitrogen absorbed by rice have an important role to the increasing of Longjing 31 output.采用田间试验的方法,利用15N同位素示踪技术,研究了施氮对龙粳31和空育131两个水稻品种15N吸收与分配的影响。试验结果表明:植株生长前期水稻吸收的氮素的量最高;水稻籽粒中的15N累积分配量龙粳31高于空育131,而在茎秆龙粳31低于空育131;水稻吸收的氮在植株体内的重新分配和转运效率对龙粳31的产量增加有重要作用。

关 键 词：RICE ^15N ABSORPTION DISTRIBUTION 

分 类 号：S511[农业科学—作物学]