山东农业科学2013，Vol.45Issue(8)：86-89,4.
氮肥运筹对垄作小麦生理特性和产量的影响
Effects of Nitrogen Application on Physiological Characteristics and Grain Yield of Winter Wheat under Raised Bed Planting
摘要
Abstract
With the wheat cultivars of Jimai 22 and Zhouyuan 9369 as materials,the effects of different nitrogen application ratios as basal and topdressing fertilizer on physiological characteristics and grain yield of winter wheat under raised bed planting were studied.Five nitrogen application ratios were set,viz.,A (all as basal N fertilizer),B (basal N fertilizer:topdressing N fertilizer =1 ∶ 2),C (basal N fertilizer:topdressing N fertilizer =2∶1),D(all as topdressing N fertilizer) and CK (no N fertilizer application).Total of 180 kg/hm2 pure nitrogen was applied in all the treatments except CK.The results showed that the treatment B could increase the LAI and SPAD value obviously at grain filling stage compared to the other treatments; the leaf senescence was slower during the late stage,and the net photosynthetic rate of wheat flag leaf was also higher.So the final yield of treatment B was much higher than that of the other treatments.In conclusion,the treatment B was the optimum nitrogen application method for winter wheat under raised bed planting.关键词
小麦/垄作/氮肥运筹/生理特性/产量Key words
Wheat/Raised bed planting/Nitrogen application/Physiological characteristics/Yield分类
农业科技引用本文复制引用
解树斌,薛春芝,李青,王红日,张宾,冯波,李华伟,司纪升..氮肥运筹对垄作小麦生理特性和产量的影响[J].山东农业科学,2013,45(8):86-89,4.基金项目
国家小麦产业技术体系项目(CRAS-3-1-21)、公益性行业(农业)科研专项(201203079)、国家科技支撑计划项目(2011BAD16B09,2011BAD16B14,2011BAD16B15)、山东省现代农业产业技术体系项目资助. （CRAS-3-1-21）
