Dynamic Responses of Super Rice IIyou602 Plants to Different Nitrogen Levels and Configuration Modes  

超级稻Ⅱ优602植株对N素水平和配置方式的动态反应(英文)

作　　者：姜心禄[1,2] 郑家国[1,2] 池忠志[1,2] 李旭毅[1,2] 牟中林 李涛 

机构地区：[1]四川省农业科学院作物研究所,四川成都610066 [2]德阳市水稻专家大院,四川德阳618300 [3]宣汉县农业局,四川宣汉636150

出　　处：《Agricultural Science & Technology》2012年第3期574-577,共4页农业科学与技术（英文版）

基　　金：Supported by Major Project of "Eleventh Five-Year" National Science and Technology Support Plan (2004BA520A05);Major Special Research Project of Ministry of Agriculture(Development and Integration of Super Rice Cultivation Technology);Science and Technology Support Program of Sichuan Province (2008FZ0036);Key Scientific and Technological Project of Deyang City (2007ND028)~~

摘　　要：[Objective] The paper was to study the dynamic responses of super rice Ilyou602 plants to different nitrogen levels and configuration modes. [Method] With super rice Ilyou602 as test material, the dynamic changes of total N content in functional leaves, leaf sheaths and stems under different, application amount of nitrogen and configuration modes were analyzed. [Result] The highest total N content of functional leaves under different N levels appeared in the different periods, which was the highest during rehydration period in A3 level. The total N content in various plant positions during full heading stage and maturity stage showed fertilization treatments 〉 CK, functional leaves 〉 leaf sheaths 〉 stems. The total N content in different plant positions showed obvious difference in different treatments. When the super rice Ilyou602 was planted in Chengdu plain, the proper application level of N and configuration mode was as follows： 165 kg/hm2, fertilizer： topdressing = 6：4. [Conclusion] The study provided theoretical basis for nitrogen regulation of high yield cultivation of super hybrid rice.[目的]研究超级稻Ⅱ优602植株对N素水平和配置方式的动态反应。[方法]试验以II优602为材料,分析不同施N量及配置方式下功能叶、叶鞘、茎秆全N含量的动态变化。[结果]不同N素水平下功能叶的最高全N含量出现的时期不同,其中A3水平下以复水期最高。齐穗期、成熟期植株各部位的全N含量均表现为施肥处理>CK,功能叶>叶鞘>茎秆,而不同处理下,植株不同部位的全N含量表现出明显的差异。Ⅱ优602在成都平原种植,适宜的施N水平和配置方式为:N素165kg/hm2,底肥:追肥=6:4。[结论]该研究为超级杂交稻的高产栽培提供N素调控的理论依据。

关 键 词：N levels Configuration modes Super rice Dynamic response 

分 类 号：S511[农业科学—作物学]