氮肥运筹对小麦光明麦1号群体指标及籽粒产量的影响
Effects of Nitrogen Management on Population Traits and Grain Yield of Wheat Cultivar Guangmingmai 1
张强 1陈时龙 1陈旭 2李秀玲 2沈杰 1袁伟 3杨景3
作者信息
- 1. 上海光明长江现代农业有限公司，上海202178
- 2. 上海市农业技术推广服务中心，上海201103
- 3. 光明米业 集团 有限公司农业技术中心，上海202171
- 折叠
摘要
[目的]筛选适宜中筋小麦光明麦1号高产高效栽培的氮肥运筹方式。[方法]研究不同施氮量和基追比例对光明麦1号群体指标及籽粒产量的影响。[结果]随施氮量增加，光明麦1号群体茎蘖数、籽粒产量呈先上升后下降的趋势。同一施氮水平下，基追比例为5∶5的处理成熟期茎蘖数和茎蘖成穗率最高；籽粒产量也显著高于基追比例为6∶4、7∶3、8∶2的处理。[结论]在该试验条件下，施氮量为300 kg／hm2、基追比例为5∶5时，穗下节间长占总长比例最高，籽粒产量也最高。
Abstract
Objective]To screen nitrogen management for high yield and superior quality cultivation of wheat Guangmingmai 1.[Method]Effects of nitrogen amounts and ratio of nitrogen on population traits and grain yield were studied.[Result]With the increase of nitrogen content,stem tiller number and grain yield showed a changing trend of up at first and then down .Under the same nitrogen application level,the stem tiller num-ber and stem tillers earing rate under the ratio of 5∶5 treatment were the highest,grain yield was also significantly higher than the treatment of 6∶4、7∶3 and 8∶2.[Conclusion]Under the conditions of this experiment,when the nitrogen amounts was 300 kg/hm2 and the ratio of base N to dressing N was 5∶5,the percentage of internode length below spike was the highest,and the grain yield was also the highest.
关键词
光明麦1号/氮肥运筹/茎蘖动态/节间配置/籽粒产量Key words
Guangmingmai 1/Nitrogen management/Stem tillers dynamics/Internode collocation/Grain yield引用本文复制引用
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据