施氮量对‘苏油4号'油菜产量及品质的影响  

Effects of N fertilizer rate on seed yield and quality of rape cultivar 'Suyou 4'

作　　者：许才康[1] 陈培锋[1] 孙华[1] 张建栋[1] 黄萌[1] 

机构地区：[1]江苏太湖地区农业科学研究所,苏州215155

出　　处：《上海农业学报》2011年第3期47-50,共4页Acta Agriculturae Shanghai

基　　金：农业部国家油菜现代产业技术体系建设(nycytx-00559);江苏省科技支撑计划(BE2008369);江苏省农业科技自主创新项目[CX(09)636];苏州市农业科技攻关计划(SNG0816)资助

摘　　要：研究了不同施氮量对‘苏油4号'产量及其籽粒品质的影响。结果表明:(1)‘苏油4号'的适宜施氮量为270～313 kg/hm^2,增加施氮量主要是通过增加群体中有效角果数来提高产量;(2)增加施氮量对一次分枝生长的影响较小,对二次分枝生长的影响较大;(3)随施氮量的增加籽粒含油率和蛋白质含量呈先增加后下降趋势,对菜籽中芥酸和硫苷含量没有直接影响。Field experiments with rape cultivar ＇Suyou 4＇ were conducted under various N fertilizer rates to investigate the effects of N fertilizer rate on the rapeseed yield and quality.The results showed that the suitable N fertilizer rate for ＇Suyou 4＇ was 270～313 kg/hm^2,and increasing N fertilizer rate improved the rapeseed yield mainly due to the increase of effective pods.Increasing N fertilizer rate less influenced the primary branches but had a greater impact on the secondary branches.With the N fertilizer rate increasing, the oil and protein contents of rapeseed gradually increased and then decreased but there were no direct effects on the erucic acid and glucosinolate contents of rapeseed.

关 键 词：油菜 '苏油4号' 肥料用量 产量 品质 

分 类 号：S565.4[农业科学—作物学] S506.2