您好，欢迎访问中国热带农业科学院 机构知识库！
中国热带农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

EXPERIMENTAL STUDY ON THE EFFECT OF DIRECT OXYGEN SUPPLY ON THE GROWTH OF RICE SEEDLING ROOT ZONE

文献类型： 外文期刊

作者： Liu, Shaodong 1 ; Wang, Chun 1 ;

作者机构： 1.Heilongjiang Bayi Agr Univ, Coll Engn, Daqing 163319, Heilongjiang, Peoples R China

2.CATAS, South Subtrop Crops Inst, Zhanjiang 524091, Guangdong, Peoples R China

关键词： Rice seedling; micro-porous aeration; root area; oxygen supply; seedling growth

期刊名称：FRESENIUS ENVIRONMENTAL BULLETIN （ 影响因子：0.489； 五年影响因子：0.479 ）

ISSN： 1018-4619

年卷期： 2019 年 28 卷 6 期

页码：

收录情况： SCI

摘要： The roots of most crops need adequate oxygen supply, which promotes and satisfies their growth in water and nutrient uptake. Insufficient oxygen in soil can inhibit root respiration, and it has a serious impact on plant growth. Good aeration in rhizosphere can promote the vitality and reproduction of aerobic microorganisms. Soil organic matter decomposes rapidly, while mineralization has accelerated obviously. Nitrogen-containing organic matter can rapidly carry out ammoniation and nitrification process, which is conducive to the absorption and utilization of crops. For the cold region of Northeastern China, soil ventilation is the key factor affecting the growth and development of rice seedlings. According to the existing model of rice seedling raising in the cold region of Northeastern China, this paper tries to optimize and construct the model of rice seedling raising by direct aeration in pipeline. Taking pipeline depth, pipeline spacing, and the frequency and duration of aeration as control variables, orthogonal experiments designed to determine the parameters of seedling root diameter, and the various parameters effects of pipeline layout on seedling growth have analyzed. The results showed that the root growth of rice seedlings was gas-driven, and oxygen supply in root zone had a significant effect on the growth of rice seedlings. Among the control variables, the time interval of oxygen supply had the most significant effect on seedling growth.

  • 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：中国热带农业科学院

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