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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (31): 122-125.doi: 10.11924/j.issn.1000-6850.2014-1909

所属专题： 园艺

• 林学 园艺 园林 • 上一篇    下一篇

不同水分条件及氮素处理对油茶嫁接苗养分含量的影响

夏莹莹,农慧珍,陈国臣   

  1. 广西林业科学研究院,广西壮族自治区林业科学研究院/广西油茶良种与栽培工程技术研究中心,广西壮族自治区林业科学研究院/广西油茶良种与栽培工程技术研究中心
  • 收稿日期:2014-07-10 修回日期:2014-07-10 接受日期:2014-08-08 出版日期:2014-11-20 发布日期:2014-11-20
  • 通讯作者: 夏莹莹
  • 基金资助:
    广西壮族自治区林业科学研究院基本科研业务费“油茶幼苗耐旱性试验与造林成活率相关性研究”(林科201211 号)

Nutrient of Grafted Seeding of Camellia oleifera Under Different Water Conditions and Nitrogen Content

  • Received:2014-07-10 Revised:2014-07-10 Accepted:2014-08-08 Online:2014-11-20 Published:2014-11-20

摘要： 为探明氮素对油茶嫁接苗在不同水分条件下叶片、根部养分含量变化，从而为油茶苗期合理施肥，提高抗性提供依据。以2 年生油茶嫁接苗为试验对象，对其在不同水分（土壤含水量分别为：28%~31%、15%~18%、9%~12%）和不同浓度氮素（0、0.375、0.75 g/株）条件下，通过生理生化试验方法，测定油茶嫁接苗叶片、根部C、N、P、K的含量。结果表明：在土壤水分胁迫条件下，施加低氮（0.375 g/株）更有利于苗木在土壤水分胁迫条件下C、N、P、K积累。在土壤水分轻度胁迫条件下，施加低氮、高氮均促进叶片、根部C、N、P积累，不能促进K的积累。在土壤水分重度胁迫条件下，施加低氮促进叶片C、N、P、K和根部C、N、K的积累，施加高氮不能促进叶片C积累，但能促进根部C、N的积累。

关键词: 山地村落, 山地村落, 生活污水, 排放意识

Abstract: The nutrient content of leaves and roots of Camellia oleifera grafted seeding was studied under different water conditions in order to provide a basis for reasonable fertilization and improve resistance of Camellia oleifera seedling. The content of C, N and P content of biennial Camellia oleifera grafted seeding under different water (soil moisture content: 28%-31%, 15%-18%, 9%-12%) and nutrient (0, 0.375, 0.75 g per seedling) conditions was investigated by physiological and biochemical tests. Results showed that low nitrogen (0.375 g per seedling) application made for C, N, P and K accumulation under soil water stress condition. Low and high nitrogen application made for C, N and P accumulation, but had no effect on K accumulation under light water stress. Low nitrogen application prompted C, N, P and K accumulation of leaves as well as C, N and K accumulation of roots under severe degree soil water stress. However, high nitrogen application could not prompt C accumulation of leaves but prompted C and N accumulation of roots instead.