您好，欢迎访问河北省农林科学院 机构知识库！
河北省农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

THE EFFECT OF NITROGEN RATE ON RICE TILLERING AND GRAIN YIELD UNDER WATER SAVING IRRIGATION

文献类型： 外文期刊

作者： Xing, Suli 1 ; Zou, Tuo 2 ; Yang, Junfang 1 ; Jia, Liangliang 1 ; Yang, Yunma 1 ; Zhai, Limei 3 ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Inst Agroresources & Environm, Shijiazhuang 050051, Hebei, Peoples R China

2.Hebei Acad Agr & Forestry Sci, Inst Coastal Agr, Shijiazhuang 050051, Hebei, Peoples R China

3.CAAS, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China

关键词： rice; nitrogen regime; optimize alternate wetting and drying irrigation; tillering; grain yield

期刊名称：SCIENTIFIC PAPERS-SERIES A-AGRONOMY （ 影响因子：0.3； 五年影响因子：0.3 ）

ISSN： 2285-5785

年卷期： 2020 年 63 卷 1 期

页码：

收录情况： SCI

摘要： In order to study the best nitrogen regime under water saving irrigation condition, an experiment was conducted based on completely randomized block design with 3 replications on rice at Caofeidian, north of China in 2018. There were six treatments, that was five levels of nitrogen (CK0 = 0, T1 = 217.8, T2 = 254.1, T3 = 290.4 and CK1=363 kg ha(-1) i.e. farmers' traditional practice) under water saving condition of optimize alternate wetting and drying irrigation (OAWD) water 10,800 m(3) ha(-1), compared with farmers' practice nitrogen level of 363 kg ha(-1) under farmers' traditional irrigation practice water13,800 m(3) ha(-1) (CK2) as check. The results clearly indicated that excess nitrogen and water influenced negatively the productive tillers. Whereas proper nitrogen rate under OAWD irrigation enhanced the grains number of per panicle, filled grains percentage, grain yield and benefit. Compared to CK2, the treatment T2 was of good economic and ecological benefits with a significant higher of population panicles by 5.37%, of productive tillers percentage by 18.81%, of filled grains per panicle percentage by 6.88%, of grain yield by 8.72% and of benefit by 4146.15 yuan ha(-1), in addition, it was of an decrease of nitrogen dose by 30%, of fertilizer cost by 261.36 yuan ha(-1) and of irrigation water by 21.7%.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：河北省农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台