期刊论文

Effects of nitrogen application on yield and nitrogen use efficiency of rapeseed (Brassica napus) under waterlogging stress at flowering stage

Guan, C.-Y.

中文

应用生态学报

1001-9332

2016

27

4

1169-1176

10.13287/j.1001-9332.201604.021

现代农业产业技术体系项目（CARS-13）； 江西省科技创新团队项目（20152BCB24013）； 江西省农业科学院创新基金项目（2011CJJ012）资助~~；

本校为第一机构

温室盆栽试验条件下,设置渍水和对照2个水分处理,每个水分处理下设置3个施氮水平(0.05、0.2、0.3 g N·kg~(-1)土),研究了花后渍水逆境下氮素营养对两个氮高效基因型‘Monty’、‘湘油15’和两个氮低效基因型‘R210’、‘Bin270’油菜产量、产量性能及氮肥利用效率的影响. 结果表明: 与对照相比,花后渍水处理显著降低了油菜的单株角果数、千粒重、每角粒数和籽粒产量. 在适宜水分条件下,增施氮肥显著增加了油菜籽粒产量,而在渍水逆境处理下,增施氮肥对油菜籽粒产量的形成贡献不大. 氮高效基因型较氮低效基因型对花后渍水逆境下的籽粒灌浆充实具有一定的促进作用. 在同一水分处理下,花后渍水明显...

A greenhouse pot experiment was conducted to study the effects of nitrogen application on the yield and nitrogen use efficiency of rapeseed under post anthesis waterlogging condition. Two high nitrogen use efficiency rapeseed genotypes 'Monty' and 'Xiangyou 15' and two low nitrogen use efficiency rapeseed genotypes 'R210' and 'Bin270' were treated with 3 nitrogen levels (0.05, 0.2, 0.3 g N·kg-1 soil) under waterlogging or normal water condition. The results showed that compared with the normal water condition, rapeseed pods per plant, 1000-see...