植物营养与肥料学报2013，Vol.19Issue(4)：824-831,8.DOI:10.11674/zwyf.2013.0407
氮肥追施比例对冬小麦产量和蛋白质组分及生理指标的影响
Effect of topdressing nitrogen ratio on yield, protein components and physiological characteristics of winter wheat
摘要
Abstract
A 2-factors randomized block design fertilizer experiment was carried out to study the impacts of basal and topdressing nitrogen ratios on winter wheat yield,protein components and physiological index.There were three winter wheat cultivars,Zhongmai 8 (A1),Zhongmai 175 (A2) and Lunxuan 518 (A3),and three N ratios for basal,jointing and flowering:B1 (5∶5∶0),B2 (5∶4∶1) and B3 (5∶3∶2).The results show that under the same amount of N fertilizer,appropriate increase of the N topdressing proportion at the flowering stage is useful to prevent the chlorophyll in wheat flag leaf from degradation at the late growth stage,increase leaf nitrogen content and extend the functional period of leaves.Higher grain yield,bulk density,1000-grain weight and protein yield were obtained with B3 treatments than with B1 and B2 treatments,and the difference in 1000-grain weight between the B3 and B2 was significant.Significant differences were also existed in the production factors among cultivars.Different proportion of nitrogen dressing affects the globulin contents significantly,while the contents of other protein components are not significant.关键词
氮肥追施比/冬小麦/产量/蛋白组分/生理指标Key words
ratio of basal N to topdressing N/ winter wheat/ grain yield/ protein components/ physiological index分类
农业科技引用本文复制引用
冯金凤,赵广才,张保军,常旭虹,王德梅,杨玉双,范仲卿,亓振..氮肥追施比例对冬小麦产量和蛋白质组分及生理指标的影响[J].植物营养与肥料学报,2013,19(4):824-831,8.基金项目
国家现代农业产业技术体系(CARS-3-1-26)项目资助. （CARS-3-1-26）
