山东农业科学Issue(11)：72-74,78,4.
氮肥追施时期对强筋小麦籽粒灌浆特性的影响
Effect of Nitrogen Topdressing Period on Grain Filling Characteristics of Strong Gluten Wheat
摘要
Abstract
Using strong gluten variety Xinmai 26 as material, the grain filling progress was fitted and the parameters were calculated by Logistic equation under field condition to discuss the effect of nitrogen topdress -ing period on grain filling characteristics .The results showed that the increase of 1 000-grain weight showed S type under different topdressing periods .Under the same nitrogen application amount , the grain filling dura-tion time, average filling velocity , the maximum filling velocity as well as the duration time of three stages in filling progress were variant among different treatments .Topdressing at booting stage was proved to be the best for ensuring nitrogen supplying at late filling stage and extending duration time of the slowly increasing stage , which was benefit for increasing seed weight and yield .关键词
强筋小麦/追施氮肥/灌浆/千粒重Key words
Strong gluten wheat/Topdressing nitrogen/Grain filling/1 000-grain weight分类
农业科技引用本文复制引用
杨丽娟,马华平,蒋志凯,盛坤,董昀,刘朝辉..氮肥追施时期对强筋小麦籽粒灌浆特性的影响[J].山东农业科学,2014,(11):72-74,78,4.基金项目
国家农业科技成果转化资金项目“国审强筋小麦新品种新麦26中试与示范”（2012GB2D000266）、现代农业产业技术体系建设专项［农科教发（2007）12号］资助。 （）
