摘要
为了探讨半干旱地区如何节水种稻,试验以垦稻12和龙粳21两个水稻品种为供试材料,设3个灌溉处理(湿润、间歇和常规灌溉),通过田间小区对比,研究不同灌溉方式对水稻生长发育及产量的影响。结果表明:两个水稻品种在节水灌溉条件下株高降低,有效分蘖茎数增多,干物质积累量增加,根冠比增大,产量提高。其中间歇灌溉处理产量最高,垦稻12和龙粳21产量分别较常规灌溉增产22.8%和20.0%,差异达极显著水平。
In order to investigate how to save water in semi-arid region of rice, take two rice cultivators Kendaol2 and Longjing21 as the experimental materials, three irrigation treatments （wetting, intermittent and conventional irrigation） were designed, and the effects of different irrigation methods on the growth and yield of rice were studied by field plot contrast experiment. The results showed that two rice varieties under the condition of water-saving irrigation except plant height decreased, other agronomic traits such as effective tiller number, dry matter accumulation, ratio root-shoot and yield were higher than conventional irrigation. The intermittent irrigation treatment yield was the highest, Kendao 12 and Longjing 21 yield were contrast with eonventional irrigation increased 22.8% and 20.0%, the difference reached a very significant level.
出处
《天津农业科学》
CAS
2016年第3期23-26,30,共5页
Tianjin Agricultural Sciences
基金
齐齐哈尔市农业攻关项目(NYGG-201403)
黑龙江省农业科学院齐齐哈尔分院科技创新项目(QFY2010A003)
关键词
粳稻
湿润灌溉
间歇灌溉
生长发育
产量
Japonica
wet irrigation
intermittent irrigation
growth and development
yield
