当前位置: 首页 > 文章 > 施氮量对烟后晚稻产量及光合特性的影响 河南农业科学 2014,43 (8) 25-27
Position: Home > Articles > Effects of Nitrogen Application Rate on Yield and Photosynthetic Characters of Late Rice after Tobacco Journal of Henan Agricultural Sciences 2014,43 (8) 25-27

施氮量对烟后晚稻产量及光合特性的影响

作  者:
黎娟;李帆;钟越峰;裴晓东;李艳芳;易镇邪
单  位:
长沙市烟草公司浏阳分公司;湖南农业大学农学院
关键词:
浏阳烟区;晚稻;施氮量;产量;光合特性
摘  要:
为探明湖南浏阳烟区烟后晚稻适宜施氮量,以水稻品种深优9586为材料,在湖南浏阳烟区开展了施氮量对烟后晚稻产量与光合特性的影响研究。结果表明:水稻全生育期随施氮量增大而延长,施氮60~90kg/hm2可使水稻生育期延长5~9d;施氮30~90kg/hm2均能使烟后晚稻显著增产,其中以施氮60kg/hm2条件下增产效果最明显;适当施氮可提高水稻叶片叶绿素含量和光合速率,为高产奠定基础。烟后晚稻栽培的适宜施氮量为60kg/hm2,此时生育期适当,产量最高。
译  名:
Effects of Nitrogen Application Rate on Yield and Photosynthetic Characters of Late Rice after Tobacco
作  者:
LI Juan;LI Fan;ZHONG Yue-feng;PEI Xiao-dong;LI Yan-fang;YI Zhen-xie;College of Agronomy,Hunan Agricultural University;Liuyang Branch of Changsha Tobacco Company;
关键词:
Liuyang tobacco area;;late rice;;nitrogen application rate;;yield;;photosynthetic character
摘  要:
To investigate the optimal nitrogen application rate for late rice after tobacco in Liuyang tobacco area,the effects of nitrogen application rate on yield and photosynthetic characters of late rice after tobacco were studied using Shenyou 9586 as the material.The results showed that the whole growth duration prolonged with the increase of nitrogen application rate,and it prolonged5-9dunder the condition of 60-90kg/ha.The yield of late rice increased significantly when 30 to 90kg/ha nitrogen was applied,with the highest increase under 60kg/ha nitrogen.The suitable application of nitrogen could improve the chlorophyll content and photosynthetic rate,which provided the basis for high yielding.When rice variety Shenyou 9586 was planted as late rice after tobacco,the optimal nitrogen application rate was 60kg/ha,under which the whole growth duration was appropriate and the highest yield was achieved.

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