施氮量对迟播油菜氮素利用和产量品质的影响

李小勇,顾炽明,刘康,廖星,黄威,杨志远,秦璐

Effects of Nitrogen Application Rate on Nitrogen Use Efficiency, Yield and Quality of Late Sowing Rapeseed

LI XiaoYong,GU ChiMing,LIU Kang,LIAO Xing,HUANG Wei,YANG ZhiYuan,QIN Lu

表4 器官氮累积量与籽粒产量品质相关性分析

Table 4 Correlation coefficients between nitrogen uptake and other yield and quality traits

实际产量 Yield 含油率 Oil content 产油量 Oil yield 倒伏角度 Lodging angle 根氮积累量 Root nitrogen uptake 0.731** -0.717** 0.568* 0.586* 茎氮积累量 Stem nitrogen uptake 0.688** -0.932** 0.461 0.974** 角果壳氮积累量 Pod shell nitrogen uptake 0.587* -0.961** 0.330 0.941** 籽粒氮积累量 Seed nitrogen uptake 0.956** -0.702** 0.832** 0.785** 籽粒氮利用率 Seed nitrogen use efficiency 0.860** 0.123 0.887** 0.168 氮生理效率 Nitrogen physiological efficiency -0.543* 0.923** -0.312 -0.932**